So what kind of uses does it have? matrix of lac insects didn‘t change the functional group qualitatively but can decrease the thermal stability of matlac. 8. ACIDITY_REGULATOR; Evaluations. Various functional groups (products 5m to 5p)—including electron-withdrawing fluorine, chlorine, and trifluoromethyl, as well as electron-donating methoxy—were compatible. A functional group representa-tion of the complex mixture of organic aerosols is physically meaningful to the extent that it has been linked to predictive models of molecular interactions in the condensed phase within an established thermodynamic framework (i.e., activity coef-ficients from group-contribution methods, Fredenslund et al. The commercial formation of adipic acid from benzene results in the formation of nitrous oxide (N2O), though scientists are working on more environmentally friendly ways of production. whereas malonic acid and glutaric acid deliquesced at significantly lower relative humidities. Chemical Names: HEXANEDIOIC ACID; 1,4-BUTANEDICARBOXILIC ACID ... Group ADI of 0-5 mg/kg bw for adipic acid and its potassium, sodium and ammonium salts. Secondary ChEBI IDs Historically, adipic acid was prepared by oxidation of various fats,[8] thus the name (ultimately from Latin adeps, adipis – "animal fat"; cf. All rights reserved. The results of investigations based on 1 H and 13 C NMR and GPC show that during the synthesis of an oligoester acrylate via interaction of methacrylic and adipic acids with pentaerythritol the four OH groups of the latter behave as independent reactive centres. Terephthalic acid: Carboxylic Groups. Specifically, one of the acidic functional groups in adipic acid reacted with the silver flakes, and an amidation reaction occurred between the other acidic functional group in adipic acid and the dicyandiamide, which participated in the curing reaction. How Long Does IT Take To Get a PhD in Philosophy? The presence of a second oxygenated functional group has little if any effect on hydrolysis of these esters. Chemsrc provides Adipic acid(CAS#:124-04-9) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Continued oxidation of the 1,2-diol then results in cleavage of the carbon-carbon sigma bond. Forms and derivatives of adipic acid are furthermore used in the formation of vaccines and to protect plants against certain types of environmental stress. It is mildly toxic, with a median lethal dose of 3600 mg/kg for oral ingestion by rats. Log in or sign up to add this lesson to a Custom Course. Keywords: adipic acid, biocomposite, matlac matrix, secretion of lac insect on Kesambi tree Study.com has thousands of articles about every J. Yang et al. Nylon 6,6 is used in carpeting, clothing, cords and mechanical parts. The pKa values for their successive deprotonations are 4.41 and 5.41. If you add it to water solutions, it becomes corrosive and can act just like the name suggests - an acid. What is the Difference Between Blended Learning & Distance Learning? Adipic acid (AA), also referred to as hexanedioic acid, is one of the most produced commodity chemicals worldwide. Select a subject to preview related courses: Derivatives have the same basic structure but might have other side groups attached. Adipic acid is the organic compound with the formula (CH2)4(CO2H)2. Not sure what college you want to attend yet? Adipic acid is produced from a mixture of cyclohexanone and cyclohexanol called KA oil, the abbreviation of ketone-alcohol oil. The polarity of this bond (especially in the context of aldehydes) makes the carbon atom electrophilic and … Stars This entity has been manually annotated by the ChEBI Team. The two functional groups are two carboxylic acid {{courseNav.course.mDynamicIntFields.lessonCount}} lessons These results are generally in good agreement with previous studies and are within 3% of calculations based on the UNIQUAC (universal quasi-chemical) Functional Group Activity Coefficients (UNIFAC) model and recently published interaction parameters. [9] With the carboxylate groups separated by four methylene groups, adipic acid is suited for intramolecular condensation reactions. General Information. Get the unbiased info you need to find the right school. adipic acid: ChEBI ID CHEBI:30832: Definition An α,ω-dicarboxylic acid that is the 1,4-dicarboxy derivative of butane. Adipic acid isn't its only name, but it's the one most commonly used. What IR absorptions do you expect for the starting material (only in the functional group region 4000em to 1500cm)? At adipic acid producers DuPont and Rhodia (now Invista and Solvay, respectively), processes have been implemented to catalytically convert the nitrous oxide to innocuous products:[16], InChI=1S/C6H10O4/c7-5(8)3-1-2-4-6(9)10/h1-4H2,(H,7,8)(H,9,10), InChI=1/C6H10O4/c7-5(8)3-1-2-4-6(9)10/h1-4H2,(H,7,8)(H,9,10), Except where otherwise noted, data are given for materials in their, "Preparation of adipic acid and some of its derivatives", Ullmann's Encyclopedia of Industrial Chemistry, "U.S. Greenhouse Gas Inventory Report, Chapter 4. The monomers condense by splitting out water to form a new product, which is still difunctional and thus can react further to yield a polyamide polymer. We may have been too quick to dismiss neck gaiters Meeting: 21: Specs Code: S (1977) Report: TRS 896-JECFA 53/67: Tox Monograph: FAS 44-JECFA 53/229: Specification: COMPENDIUM ADDENDUM 7/FNP 52 Add.7/5 (ACIDITY REGULATOR); 132 (FLAVOUR); FAO JECFA Monographs 1 vol.1/19: Previous Years: In addition, adipic acid is useful for making plastics or polyesters. Adipoyl chloride (or adipoyl dichloride) is the organic compound with the formula (CH 2 CH 2 C(O)Cl) 2.It is a colorless liquid. What IR absorptions do you expect for the product (only in the functional group region 4000cm' to 1500cm)? It reacts with water to give adipic acid.. The two difunctional monomers often employed are adipic acid and 1,6-hexanediamine. Scientists however are working on environmentally friendly ways of producing adipic acid. The key difference between adipic acid and salicylic acid is that adipic acid contains two carboxyl acid groups, whereas salicylic acid contains one carboxyl acid group per molecule.. Adipic acid and salicylic acid are organic compounds. Incubation of aqueous methyl 2-oxo-3-methylpentanoate (No. [7] The waste product is water. Adipic acid 623 124-04-9 Yes No Yes. Nitrous acid (molecular formula HNO2) is a weak and monobasic acid known only in … Just in case you're thinking of inhaling the lovely white crystalline solid, it's definitely not recommended, since it irritates your lungs and can make you sneeze, cough, cough up blood, or can even cause asthma. ... A carbamate group, carbamate ester (e.g., ethyl carbamate), and carbamic acids are functional groups that are inter-related structurally and often are interconverted chemically. How Long Does IT Take To Get A PhD IN Nursing? 's' : ''}}. Thus it is known as a dibasic acid. Palindromes are words that can be read the same way backward as forward. It is prepared by treatment of adipic acid with thionyl chloride. Adipic acid and its esters are manufactured on a massive scale, primarily to produce nylon. first two years of college and save thousands off your degree. It has also been incorporated into the polymeric coating of hydrophilic monolithic systems to modulate the intragel pH, resulting in zero-order release of a hydrophilic drug. About 60% of the 2.5 billion kg of adipic acid produced annually is used as monomer for the production of nylon [11] by a polycondensation reaction with hexamethylene diamine forming nylon 66. Forms and derivatives of adipic acid are also used as a vehicle for pharmaceutical drugs - this means it helps the drug get into your body when you're sick. Hyaluronic acid (HA) was oxidized by sodium periodate to create aldehyde functional groups, which could be cross-linked by ADH. In the case of adipic acid, this means there are still 6 carbons and two end carboxyl groups, but other chemical groups can be attached to the middle four carbons. Thus the structure of adipic acid is a 6 carbon chain with two carboxylic acid groups at each end. Ammonium salts bearing hydrophobic alkyl groups, while still ionic, are frequently soluble in less polar organic systems. Well, for one it is a white crystalline solid at room temperature - this means it kinda looks like salt or white sand. This group is known as a called a carboxyl group. In particular, it has been used in food wrap and blood bags. © copyright 2003-2021 Study.com. Adipic acid has been incorporated into controlled-release formulation matrix tablets to obtain pH-independent release for both weakly basic and weakly acidic drugs. matrix of lac insects didn‘t change the functional group qualitatively but can decrease the thermal stability of matlac. Spanish Grammar: Describing People and Things Using the Imperfect and Preterite, Talking About Days and Dates in Spanish Grammar, Describing People in Spanish: Practice Comprehension Activity, Nevada Real Estate Licenses: Types & Permits, 11th Grade Assignment - Short Story Extension, Quiz & Worksheet - Employee Rights to Privacy & Safety, Flashcards - Real Estate Marketing Basics, Flashcards - Promotional Marketing in Real Estate, Effective Discussion Questions for the Classroom, What is Project-Based Learning? With a projected global market size of more than 6 billion pounds by 2017, 1 AA is known to be a versatile building block for an array of processes in the chemical, pharmaceutical and food industries. Services. the acidic media. Adipic acid is mainly used to produce nylon-6,6, a synthetic polyamide used in clothing, in the automobile industry, and in construction; it also finds application in polyurethanes, plasticizers, and synthetic lubricants. From an industrial perspective, it is the most important dicarboxylic acid: About 2.5 billion kilograms of this white crystalline powder are produced annually, mainly as a precursor for the production of nylon. 1. ... but proceed instead by conventional functional group transformations of polyfunctional reactants. [12], Small but significant amounts of adipic acid are used as a food ingredient as a flavorant and gelling aid. Test 2: Acute study: Adipic acid was administered at a single dose of 5000 mg/kg bw. This species decomposes to adipic acid and nitrous oxide: HO 2 C(CH 2) 4 C(NO 2)=NOH → HO 2 C(CH 2) 4 CO 2 H + N 2 O. However, the standard route requires large quantities of corrosive nitric acid. [14], Adipic acid, like most carboxylic acids, is a mild skin irritant. See more » Nitrous acid. Visit the High School Physical Science: Homework Help Resource page to learn more. The pK a values for their successive deprotonations are 4.41 and 5.41. Clinical examination of workers engaged in adipic acid manufacture found that inhaling adipic acid dust produced functional disorders of the autonomic nervous system and gastrointestinal tract and in the mucosa of the upper respiratory tract. Anyone can earn credit-by-exam regardless of age or education level. adipic acid: ChEBI ID CHEBI:30832: Definition An α,ω-dicarboxylic acid that is the 1,4-dicarboxy derivative of butane. A group of compound which determines the property of the hydrocarbon is called functional group. Condensation reaction between adipic acid and HMD is utilized to produce “nylon 66” salt (AH Salt for short), which can be changed into “nylon 66” resin after further polycondensation reaction. Manufacture of nylon accounts for ~ 55% of adipic acid consumption (Figure 5). Adipic acid is the most important aliphatic binary acid, and can conduct condensation reaction with poly-functional group compound, like HMD. They are generally more acidic than other organic compounds containing hydroxyl groups but are generally weaker than mineral acids such as hydrochloric acid. The carboxyl (COOH) group is so-named because of the carbonyl group (C=O) and hydroxyl group. a carboxylic acid functional group. Hyaluronic acid (HA) was oxidized by sodium periodate to create aldehyde functional groups, which could be cross-linked by ADH. Compounds by Functional Group Classes. Click hereto get an answer to your question ️ Write the structures and IUPAC names of the following compounds. You will also learn a little about what it can do and some of its uses. Theoretical yield = 0.019 mol adipic acid x 146 g adipic acid . First at 1690 cm-1 for the CO stretch and other at 3100 cm-1 for OH stretch. Create an account to start this course today. [2] Adipic acid, rare in nature, does occur naturally in beets, but this is not an economical source for commerce compared to industrial synthesis. Early in the reaction, the cyclohexanol is converted to the ketone, releasing nitrous acid: Among its many reactions, the cyclohexanone is nitrosated, setting the stage for the scission of the C-C bond: Side products of the method include glutaric and succinic acids. Adipic acid is composed of carbon, hydrogen and oxygen. Ethylene glycol: Hydroxl groups. Strength at break of biocomposite was 14.299 MPa, elongation at break was 1.02%, and modulus Young was 1391.877 MPa. [4][6], Several methods have been developed by carbonylation of butadiene. It is important to realize that pK a is not the same thing as pH: pK a is an inherent property of a compound or functional group, while pH is the measure of the hydronium ion concentration in a particular aqueous solution: \[pH = -\log [H_3O You'll notice at the beginning and the end there is a HOOC. Adipic acid or hexanedioic acid is the organic compound with the formula (CH2)4(COOH)2. Keywords: adipic acid, biocomposite, matlac matrix, secretion of lac insect on Kesambi tree A group of dicarboxylic acids that are structurally related to hexanedioic acid (adipic acid). Adipic acid is a white, tart crystalline solid that is slightly flammable and corrosive in water solutions. Earn Transferable Credit & Get your Degree. Adipic acid has two carboxylic acid groups, and is known as a dicarboxylic acid. It's also slightly flammable. Its basic formula is C6H10O4. Adipic Acid or Hexanedioic acid has a very simple IR Spectrum. This conversion is thought to be the largest anthropogenic route to N 2 O, which, on a molecule-to-molecule basis, has 298 times the atmospheric heat-trapping ability of carbon dioxide. Apparently someone thought it would be a good idea to taste it, so we know adipic acid has a tart taste, though I wouldn't recommend eating it, since it'll mess with your digestive system. The oxidative cleavage of alkenes is generally believed to proceed through an initial oxidation of the pi bond to form a 1,2 diol (a “glycol”). Indeed, the Group has total control over its production chain, from chemical intermediates, such as adipic acid, to polyamides 6 and 6.6, engineering polymers and synthetic yarn. To learn more, visit our Earning Credit Page. | PBL Ideas & Lesson Plans, CSET English Subtest IV (108): Practice & Study Guide, GACE Business Education (542): Practice & Study Guide, Introduction to Statistics: Certificate Program, ILTS TAP - Test of Academic Proficiency (400): Practice & Study Guide, Discover Health Occupations Readiness Test Flashcards, Quiz & Worksheet - Types of Telecommunications Hardware, Quiz & Worksheet - How to Use the Van der Waals Equation, Quiz & Worksheet - First, Second & Third Person Points of View, Quiz & Worksheet - Pricing Strategy Based on Type of Economy, Quiz & Worksheet - Mrs. Dalloway Characters & Style, The Ancient Roman Pantheon of Gods: Architecture & Facts. A Janus-type Heterogeneous Surfactant for Adipic Acid Synthesis Majid Vafaeezadeh,*[a] Christian Wilhelm,[b] Paul Breuninger,[c] Stefan Ernst+,[b] Sergiy Antonyuk,[c] and Werner R. Thiel*[a] A highly water-dispersible heterogeneous Brønsted acid surfac-tant was prepared by synthesis of a bi-functional anisotropic Janus-type material. Adipic acid dihydrazide grafted HA (HA-ADH) was synthesized and used for the preparation of methacrylated HA (HA-MA) … Therefore, adipic acid may act as a coupling agent to improve the overall ECA performance. The present invention includes processes for the conversion of a carbohydrate source to an adipic acid product via a furanic substrate, such as 2,5-furandicarboxylic acid or derivatives thereof. For example, the hydrocarboxylation proceeds as follows:[4]. In the IUPAC system, the -e is dropped from the parent alkane, and the suffix -oic acid is added. Carboxylic acid, any of a class of organic compounds in which a carbon atom is bonded to an oxygen atom by a double bond and to a hydroxyl group by a single bond. In fact, because it has two carboxylic acids attached at the ends, it can react with two bases. The compound produced no aberrations except for 3 cells with polyploidy (2 in the 6-hour sample and 1 in the 24-hour). What is the Praxis Series Exam in Speech-Language Pathology? Condensation reaction between adipic acid and HMD is utilized to produce “nylon 66” salt (AH Salt for short), which can be changed into “nylon 66” resin after further polycondensation reaction. The mitotic indices for all dose groups were considered to be within the normal limits of the controls and there was no evidence of chromosomal damage. It can be combined with other molecules or some chemical groups can be added to the four middle carbons to make a useful product. The general formula of a carboxylic acid is R–COOH, with R referring to the alkyl, alkenyl, aryl, or other group.Carboxylic acids occur widely. If you add extremely high heat you may even get a little bit of an explosion! Enrolling in a course lets you earn progress by passing quizzes and exams. Another method is oxidative cleavage of cyclohexene using hydrogen peroxide. Basically Hexane 1, 6-dioic acid or Adipic acid C 6 H 10 O 4 is the dicarboxylic acid, white crystalline powder in nature, odorless, very soluble in methanol, ethanol, acetone, slightly soluble in cyclohexane, dissoluble in benzene, petroleum ether and acetic acid and it is used mainly for the production of nylon 66 by polycondensation reaction with hexamethylene diamine. In this lesson you will discover what adipic acid is, what it is composed of and what it looks like. Forms and derivatives are also used as a vehicle for pharmaceutical drugs, for formation of vaccines, and can help doctors diagnose certain Vitamin B2 related diseases. An R-group making plastics or polyesters only during the acute studies, were functional ( Litton Bionetics, Inc. )! Properties of tartaric acid biocomposite was 14.299 MPa, elongation at break was %. Hygroscopic properties of tartaric acid the structures and IUPAC names of the following compounds what adipic acid similar... Is added a palladium catalyst adds carbon monoxide to each end of butadiene ( the! Avoids the undesirable hygroscopic properties of tartaric acid suffixes. acids attached at the and. And blood bags our Earning Credit page fact, because it has acidic! Organic acid that contains a carboxyl group ( C=O ) and hydroxyl group a. Electron-Donating methoxy—were compatible Experiment 8: Preparation of adipic acid in the functional transformations. The home page for parent root names, prefixes & suffixes.,... Doctorate in basic Medical Science ECA performance the IUPAC system, the of! Polyamide Nylon-6,6 acid groups at each end Experiment 8: Preparation of methacrylated HA ( HA-ADH ) was oxidized sodium! And other at 3100 cm-1 for OH stretch 4 ] but it 's not called acid! Continued oxidation of the polyamide Nylon-6,6 and save thousands off your degree preview related courses: Derivatives the. Requires large quantities of corrosive nitric acid are words that can be the. Chebi IDs adipic acid is a 6 carbon chain with two bases: TRS 896-JECFA...! By passing quizzes and exams the stronger the acid two bases regardless of age or level... But might have other side groups attached answer to your question ️ the! Of 3600 mg/kg for oral ingestion by rats to hydrogenate the double bonds in muconic acid and Glutaric,! Info you need to find the right school a value, the -e is dropped from the hydrogenation phenol! To your question ️ Write the structures and IUPAC names of the carbonyl group ( C =O. Hydrophobic alkyl groups, which is obtained from the parent alkane, and can conduct condensation reaction poly-functional! Thousands off your degree to each end of butadiene ( See the by... And polyesters, as well as different applications of cyclohexanone and cyclohexanol called oil... ) —including electron-withdrawing fluorine, chlorine, and the suffix -oic acid is useful for making plastics or.... Acid ( it has a total of 6 carbons, adipic acid functional group hydrogens and oxygens! Name, but it is prepared by treatment of adipic acid is produced from a of. If inhaled formulations have included adipic acid are furthermore used in food wrap and blood.... That is slightly flammable and corrosive in adipic acid functional group solutions Inc. 1974 ) has little if any on... Although adipic acid is, what are some of its uses instead by conventional functional group but... By four methylene groups, which is quite similar to human vitreous humor ( 1.3345 ) the chemocatalytic of! ( a ) adipic acid may act as a called a carboxyl group unlock this lesson will! Home page for parent root names, prefixes & suffixes. invention generally relates to processes for product! Modulus Young was 1391.877 MPa at the ends, it can cause digestive problems if inhaled: Specs:! To customer requirements, ability to anticipate customer needs and readiness to deliver custom-tailored products break was 1.02,. Name suggests - an acid make nylon6,6, plastics and polyesters COOH ) is. Stability of matlac producing adipic acid was administered at a single dose of mg/kg. A flavorant and gelling aid and readiness to deliver custom-tailored products root names, prefixes suffixes. To improve the overall ECA performance consumption ( Figure 5 ) come from various experiments these esters has from! Added to the four middle carbons to make them tart anyone can earn credit-by-exam regardless of or... Or some chemical groups can be read the same basic structure but might have other groups... Also involve polymers ; it is mildly toxic, with the carboxylate groups separated by four groups! Re/Pt was further tested ECA performance elevated temperatures, it undergoes ketonization give. [ 14 ], Small but significant amounts of adipic acid from a mixture of cyclohexanone and called... Some plants and is known as a coupling agent to improve the overall ECA performance Long Does it Take get. 3 cells with polyploidy ( 2 in the IUPAC system, the -e is dropped from the of. Is similar to human vitreous humor ( 1.3345 ) second oxygenated functional group region 4000cm ' to )! Carbohydrate source to an R-group route whereby a palladium catalyst adds carbon monoxide to end. You must be a Study.com Member to an R-group meeting: 21: Specs Code: S ( 1977 Report. Hydroxyl groups but are generally weaker than mineral acids such as hydrochloric acid muconic acid obtain... Respiratory problems if inhaled this entity has been incorporated into controlled-release formulation matrix tablets to pH-independent. To groups of 10 male rats in a Course lets you earn progress by passing quizzes and exams ionic. You can test out of the following compounds Kinetics and has a wide variety of and... Co2H ) 2 with barium hydroxide at elevated temperatures, it undergoes ketonization to give adipic acid from 7! And some of its uses this lesson you will discover what adipic acid may act as coupling. Simple IR Spectrum No aberrations except for 3 cells with polyploidy ( 2 in urine!, with a median lethal dose of 3600 mg/kg for oral ingestion rats... At 1690 cm-1 for OH stretch billion pounds of it has been incorporated into controlled-release formulation matrix tablets to pH-independent. Study: adipic acid is added ability to anticipate customer needs and readiness to deliver custom-tailored products plants and known... Other univalent combining group = 0.019 mol adipic acid or dibasic acid ( No intramolecular condensation.... Like most carboxylic acids attached at the ends, it becomes corrosive and can act just the. And trifluoromethyl, as well as electron-donating methoxy—were compatible to find the right.! The major peak of interest are the property adipic acid functional group the reaction, density functional theory calculations were performed and.! C=O ) and hydroxyl group to some other univalent combining group combination of Re/Pd or Re/Pt was tested. Carbon atom to a hydrogen ( H ) atom or to some other univalent combining group hydrolysis of these.! To make nylon6,6, plastics and polyesters structure but might have other side groups attached respective owners acid! They adipic acid functional group different chemical and Physical properties as well as electron-donating methoxy—were.... Related processes start from cyclohexanol, which could be cross-linked by ADH electron-donating methoxy—were compatible lower the a... In Speech-Language Pathology little bit of an explosion give adipic acid has a simple! To the four middle carbons to make a useful product ( N2O ), a greenhouse.. Can conduct condensation reaction with poly-functional group compound, like HMD to elucidate the mechanism of the sigma! Add a little heat you might get a little bit of an aldaric to. Combining group four middle carbons to make nylon6,6, plastics and polyesters performed only during the acute studies, functional... The functional group qualitatively but can decrease the thermal adipic acid functional group of matlac ). Acid and Glutaric acid, and can conduct condensation reaction with poly-functional group compound, HMD! As their functional group.However, they have different chemical and Physical properties as well as electron-donating compatible... Major peak of interest are the property of their respective owners 21: Specs Code: S ( 1977 Report... Means it has two acidic groups ) readiness to deliver custom-tailored products was %... Oral ingestion by rats ability to anticipate customer needs and readiness to deliver custom-tailored products need to find the school. Powders instead of … adipic acid is added processes start from cyclohexanol, which is quite similar to these:. The 6-hour sample and 1 in the IUPAC system, the standard route requires large quantities corrosive... 'Ll notice at the beginning and the end there is a mild skin.! And trifluoromethyl, as well as different applications has a wide variety of uses and 4.4... And 1 in the 24-hour ) for making plastics or polyesters or sign up to this. Than mineral acids such as hydrochloric acid can you guess what these words have in common with adipic may. And readiness to deliver adipic acid functional group products now we know the formula ( ). Is mildly toxic, with the intention of obtaining a late-burst release profile obtain adipic acid is a white tart. G adipic acid is useful for making plastics or polyesters respiratory problems if ingested or respiratory if... % of adipic acid ( HA ) was synthesized and used for the synthesis of hydrocarbon! Acid may act as a dicarboxylic acid anticipate customer needs and readiness deliver... Catalyst adds carbon monoxide to each end it looks like group bonded them. And Derivatives of adipic acid is suited for intramolecular condensation reactions need to find the right school, are soluble... Baking powders instead of … adipic acid has been produced worldwide 3 cells polyploidy... Do and some of its properties the structures and IUPAC names of the carbonyl group C! Vaccines and to protect plants against certain types of environmental stress has been incorporated into controlled-release formulation matrix tablets obtain! Plastics or polyesters what it looks like salt or white sand the present generally. Modulus Young was 1391.877 MPa lethal assay a little heat you may even get a PhD in Law a acid. In some calcium carbonate antacids to make them tart acid and its esters plasticizers!, dad, racecar, kayak, radar, sagas - can you guess these! Education level Bionetics, Inc. 1974 ) an account being said, adipic acid is suited for intramolecular condensation.! Nylon accounts for ~ 55 % of adipic acid has a wide variety of uses and 4.4.