ADDOLINK TT

Addolink TT supports manufacturers in achieving superior product quality while optimizing their manufacturing processes.
Addolink TT is the organic compound with the formula (CH2)4(COOH)2. 
Addolink TT is a specialized chemical additive primarily used as a dispersing agent and stabilizer in various industrial applications. 

CAS Number: 124-04-9
Molecular Formula: C6H10O4
Molecular Weight: 146.14
EINECS Number: 204-673-3

Synonyms: 1,4-Butanedicarboxylic acid, Acifloctin, Acinetten, Adilactetten, 1,6-Hexanedioic acid, Molten adipic acid, Kyselina adipova, FEMA No. 2011, Adipinsaeure, Adipinsaure, adipic-acid, Acide adipique, Adipidic acid, FEMA Number 2011, NSC 7622, CCRIS 812, HSDB 188, UNII-76A0JE0FKJ, NSC-7622, EINECS 204-673-3, 76A0JE0FKJ, BRN 1209788, INS NO.355, CHEBI:30832, AI3-03700, INS-355, E-355, E355, INS No. 355, EC 204-673-3, 4-02-00-01956 (Beilstein Handbook Reference), E 355, ADIPIC ACID (II), ADIPIC ACID [II], ADIPIC ACID (MART.), ADIPIC ACID [MART.], ADIPIC ACID (EP MONOGRAPH), ADIPIC ACID [EP MONOGRAPH], Adilac-tetten, ASAPIC, INIPOL DS, EC 432-790-1, Flavor and Extract Manufacturers' Association Number 2011, 204-673-3, 847871-03-8, adipic acid (acgih), hexanedioic acid, 124-04-9, Adipinsaure [German], Hexanedioc acid, Acide adipique [French], Kyselina adipova [Czech], Hexanedioate, ADIPIC-DB ACID, Adi-pure, MFCD00004420, Adipic acid [NF], Hexan-1,6-dicarboxylate, 1,6-HEXANE-DIOIC ACID, DTXSID7021605, NSC7622, ADIPIC-1,6-13C2 ACID, Adipic acid (NF), Hexanedioic-2,2,5,5-d4 acid, NCGC00091345-01, hexane-1,6-dioic acid, Adipic acid; Hexanedioic acid, DTXCID301605, adipicacid, CAS-124-04-9, Adipinate, Molten adipate, hexane dioic acid, 1,6-Hexanedioate, 0L1, Adipic acid, 99%, Adipic acid (Standard), Adipic acid, >=99%, ADIPIC ACID [MI], WLN: QV4VQ, ADIPIC ACID [FCC], bmse000424, ADIPIC ACID [FHFI], ADIPIC ACID [HSDB], SCHEMBL4930, CHEMBL1157, NCIOpen2_001004, NCIOpen2_001222, HOOC-(CH2)4-COOH, Adipic acid, >=99.5%, ADIPIC ACID [USP-RS], ADIPIC ACID [WHO-DD], BIDD:ER0342, Adipic acid, puriss., 99.8%, Pharmakon1600-01301012, HY-W017522R, Tox21_111118, Tox21_202161, Tox21_300344, BBL011615, LMFA01170048, NSC760121, s3594, STL163338, AKOS000119031, Tox21_111118_1, CCG-230896, CS-W018238, FH37732, HY-W017522, NSC-760121, NCGC00091345-02, NCGC00091345-03, NCGC00091345-04, NCGC00091345-05, NCGC00254389-01, NCGC00259710-01, AC-10343, BP-21150, BP-30248, A0161, Adipic acid, BioXtra, >=99.5% (HPLC), Adipic acid, SAJ special grade, >=99.5%, NS00005309, EN300-18041, Adipic acid, Vetec(TM) reagent grade, >=99%, C06104, D08839, D70505, SBI-0653842.0001, AB00988898-01, AB00988898-03, Q357415, SR-01000944270, SR-01000944270-2, BRD-K10656395-001-02-1, Z57127533, Adipic acid, certified reference material, TraceCERT(R), F0001-0377, Adipic acid, European Pharmacopoeia (EP) Reference Standard, 1F1316F2-7A32-4339-8C2A-8CAA84696C95, Adipic acid, United States Pharmacopeia (USP) Reference Standard, InChI=1/C6H10O4/c7-5(8)3-1-2-4-6(9)10/h1-4H2,(H,7,8)(H,9,10), RARECHEM AL BO 0180;AKOS BBS-00004308;ADIPIC ACID;adipinic acid;1,6-HEXANEDIOIC ACID;1,4-BUTANEDICARBOXYLIC ACID;BUTANE-1,4-DICARBOXYLIC ACID;DICARBOXYLIC ACID C6

Addolink TT is a crystalline powder with practically no odor. 
Addolink TT has the lowest acidity of any of the acids commonly used in foods and has excellent buffering capacity in the range of pH 2.5 to 3.0. 
Like succinic and fumaric acid, Addolink TT is practically nonhygroscopic. 

Addolink TTs addition to foods imparts a smooth, tart taste. 
In grape-flavored products, Addolink TT adds a lingering supplementary flavor and gives an excellent set to food powders containing gelatin. 
As a result, Addolink TT has found a wide number of uses as an accidulant in dry powdered food mixtures, especially in those products having delicate flavors and where addition of tang to the flavor is undesirable.

Addolink TT is designed to improve the distribution of pigments and fillers within polymer matrices, ensuring uniformity and preventing agglomeration during processing. 
This additive enhances the flow properties and stability of coatings, inks, and plastics, leading to better surface finish and durability of the final products. 
Addolink TT 3.0 - 6.1 parts by weight with 3 - 5 parts by weight Bonding agent TN/N or Addolink TT (50%) 2.9 - 5.7 parts by weight with 4-8 parts by weight Bonding agent TN/S 50 added to 100-110 parts by weight plasticized PVC paste. 

Because of its efficiency in dispersing solid particles, Addolink TT helps manufacturers achieve consistent color strength and improved mechanical performance in their formulations. 
Additionally, it can contribute to longer shelf life and reduced defects in materials by minimizing sedimentation and phase separation.
Addolink TT is a white crystalline solid. 

Addolink TT is insoluble in water. 
The primary hazard is the threat to the environment. 
Immediate steps should be taken to limit its spread to the environment. 

Addolink TT is used to make plastics and foams and for other uses.
Addolink TT is dimeric toluene-2.4-diisocyanate. 
Acts as a bonding agent to improve the adhesion of fabrics (polyester, polyamide, aramide) to plasticized PVC or rubber. 

Addolink TT has a shelf life of 1 year.
From the 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.
Addolink TT otherwise rarely occurs in nature.

Addolink TT is widely valued in industries such as paints, coatings, and plastics manufacturing due to its excellent ability to maintain stable dispersions of pigments and fillers over extended periods. 
This stability is crucial for producing high-quality products with consistent appearance and performance. 
By reducing viscosity and improving the wetting of particles, Addolink TT facilitates easier processing and application of materials, which can result in cost savings and enhanced productivity. 

Moreover, it can improve the compatibility between different components in complex formulations, making it suitable for use in both water-based and solvent-based systems. 
The additive also plays a role in enhancing the durability and weather resistance of coatings by ensuring an even distribution of functional ingredients.

Melting point: 151-154 °C(lit.),
Boiling point: 265 °C100 mm Hg(lit.),
Density: 1,36 g/cm3,
bulk density: 700kg/m3,
vapor density: 5 (vs air),
vapor pressure: 1 mm Hg (159.5 °C),
refractive index: 1.4880,
FEMA: 2011 | ADIPIC ACID,
Flash point: 385 °F,
storage temp.: Store below +30°C.,
solubility: methanol: 0.1 g/mL, clear, colorless,
form: Solid,
pka: 4.43(at 25℃),
color: White,
Odor: wh. monoclinic prisms, pract. odorless,
PH: 3.74(1 mM solution); 3.22(10 mM solution); 2.71(100 mM solution),
biological source: synthetic,
Water Solubility: 1.44 g/100 mL (15 ºC),
Merck: 14,162,
JECFA Number: 623,
BRN: 1209788,
Exposure limits: ACGIH: TWA 5 mg/m3,
Dielectric constant: 1.8（Ambient）,
Stability: Stable. Substances to be avoided include ammonia, strong oxidizing agents.,
InChIKey: WNLRTRBMVRJNCN-UHFFFAOYSA-N,
LogP: 0.09 at 25℃

Addolink TT is a straight-chain dicarboxylic acid that exists as a white crystalline compound at standard temperature and pressure. 
Addolink TT is one of the most important industrial chemicals and typically ranks in the top 10 in terms of volume used annually by the chemical industry.
Addolink TT is prepared by nitric acid oxidation of cyclohexanol or cyclohexanone or a mixture of the two compounds. 

Recently, oxidation of cyclohexene with 30% aqueous hydrogen peroxide under organic solvent- and halide-free conditions has been proposed as an environmentally friendly alternative for obtaining colorless crystalline Addolink TT.
Addolink TT can be manufactured using several methods, but the traditional and main route of preparation is by the two-step oxidation of cyclohexane (C6H12). 
In the first step, cyclohexane is oxidized to cyclohexanone and cyclohexanol with oxygen or air. 

This occurs at a temperature of approximately 150°C in the presence of cobalt or manganese catalysts. 
The second oxidation is done with nitric acid and air using copper or vanadium catalysts. 
In this step, the ring structure is opened and Addolink TT and nitrous oxide are formed. 

Other feedstocks such as benzene and phenol may be use to synthesize adipic acid. 
Addolink TT production used to be a large emitter of nitrous oxide, a greenhouse gas, but these have been controlled in recent years using pollution abatement technology.
Addolink TT is a carboxylic acid. Carboxylic acids donate hydrogen ions if a base is present to accept them. 

They react in this way with all bases, both organic (for example, the amines) and inorganic. 
Their reactions with bases, called "neutralizations", are accompanied by the evolution of substantial amounts of heat.
Neutralization between an acid and a base produces water plus a salt. 

Carboxylic acids with six or fewer carbon atoms are freely or moderately soluble in water; those with more than six carbons are slightly soluble in water. 
Soluble carboxylic acid dissociate to an extent in water to yield hydrogen ions. 
The pH of solutions of Addolink TTs is therefore less than 7.0. 

Many insoluble carboxylic acids react rapidly with aqueous solutions containing a chemical base and dissolve as the neutralization generates a soluble salt. 
Addolink TTs in aqueous solution and liquid or molten carboxylic acids can react with active metals to form gaseous hydrogen and a metal salt. 
Such reactions occur in principle for solid carboxylic acids as well, but are slow if the solid acid remains dry. 

Even "insoluble" carboxylic acids may absorb enough water from the air and dissolve sufficiently in Addolink TT to corrode or dissolve iron, steel, and aluminum parts and containers. 
Addolink TTs, like other acids, react with cyanide salts to generate gaseous hydrogen cyanide. 
The reaction is slower for dry, solid carboxylic acids. 

Insoluble Addolink TTs react with solutions of cyanides to cause the release of gaseous hydrogen cyanide. 
Flammable and/or toxic gases and heat are generated by the reaction of carboxylic acids with diazo compounds, dithiocarbamates, isocyanates, mercaptans, nitrides, and sulfides.
Addolink TTs, especially in aqueous solution, also react with sulfites, nitrites, thiosulfates (to give H2S and SO3), dithionites (SO2), to generate flammable and/or toxic gases and heat. 

Their reaction with carbonates and bicarbonates generates a harmless gas (carbon dioxide) but still heat. 
Like other organic compounds, Addolink TTs can be oxidized by strong oxidizing agents and reduced by strong reducing agents. 
These reactions generate heat a wide variety of products is possible. 

Like other acids, carboxylic acids may initiate polymerization reactions; like other acids, they often catalyze (increase the rate of) chemical reactions. 
Behavior in Fire: Melts and may decompose to give volatile acidic vapors of valeric acid and other substances.
Addolink TT is a multifunctional crosslinking agent.

Addolink TT is dimeric toluene-2.4-diisocyanate.
Addolink TT acts as a bonding agent to improve the adhesion of fabrics (polyester, polyamide, aramide) to plasticized PVC or rubber.
Addolink TT is produced from a mixture of cyclohexanol and cyclohexanone called "KA oil", the abbreviation of "ketone-alcohol oil." 

The KA oil is oxidized with nitric acid to give adipic acid, via a multistep pathway. 
Early in the reaction the cyclohexanol is converted to the ketone, releasing nitrous acid: HOC6H11 + HNO3 → OC6H10 + HNO2 + H2O
Among its many reactions, the cyclohexanone is nitrosated, setting the stage for the scission of the C- C bond: HNO2 + HNO3 → NO+NO3- + H2O OC6H10 + NO+→ OC6H9-2 - NO + H+

Side products of the method include glutaric and succinic acids.
Related processes start from cyclohexanol, which is obtained from the hydrogenation of phenol.

Addolink TT is a bonding agent to improve the adhesion of fabrics (polyester, polyamide, aramide) to plasticized PVC or rubber and for the manufacture of 1 K-PUR micro-encapsulated adhesive-sealant systems.
Addolink TT is based on dimeric 2,4-toluene diisocyanate (dimeric TDI).

Uses Of Addolink TT:
Addolink TT’s main use is in the production of 6,6 nylon. 
Addolink TT is also used in resins, plasticizers, lubricants, polyurethanes, and food additives.
Addolink TT is primarily used in the synthesis of nylon. 

Addolink TT has been used as a reagent in the solid-state polymerization of nylon analogs.
Addolink TT is an acidulant and flavoring agent. 
Addolink TT is characterized as stable, nonhygroscopic, and slightly soluble, with a water solubility of 1.9 g/100 ml at 20°c. 

Addolink TT has a ph of 2.86 at 0.6% usage level at 25°c. 
Addolink TT is used in powdered drinks, beverages, gelatin desserts, loz- enges, and canned vegetables. 
Addolink TT is also used as a leavening acidulant in baking powder. 

Addolink TT can be used as a buffering agent to maintain acidities within a range of ph 2.5–3.0. 
Addolink TT is occasionally used in edi- ble oils to prevent rancidity.
Addolink TT is used as an acidifying and buffering agent in intramuscular, intravenous and vaginal formulations. 

It is also used in food products as a leavening, pH-controlling, or flavoring agent.
Addolink TT has been incorporated into controlled-release formulation matrix tablets to obtain pH-independent release for both weakly basicand weakly acidic drugs.
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.

The disintegration at intestinal pH of the enteric polymer shellac has been reported to improve when Addolink TT was used as a pore-forming agent without affecting release in the acidic media.
Other controlled-release formulations have included Addolink TT with the intention of obtaining a late-burst release profile.
Addolink TT is primarily used as a dispersing agent in the production of paints, coatings, and printing inks, where it helps to evenly distribute pigments and fillers throughout the formulation, preventing clumping and sedimentation. 

This uniform dispersion is essential for achieving consistent color, gloss, and texture in the final product, which is highly valued in decorative and industrial coatings. 
Additionally, Addolink TT is employed in the manufacture of plastics and polymers to enhance the blending of additives and fillers, improving the mechanical strength and surface finish of molded or extruded materials. 
It is also used in adhesive formulations to ensure homogeneous mixtures, which results in better bonding performance and durability. 

In some specialty applications, Addolink TT aids in the stabilization of suspensions and emulsions, thereby extending the shelf life of products and maintaining their functional properties during storage and use.
Addolink TTs role is critical in optimizing both the processing efficiency and end-use quality of a wide range of industrial materials.

Addolink TT is also widely utilized in the production of ceramic slurries and pigment preparations, where it improves particle dispersion to enhance the quality and uniformity of ceramic bodies and colored materials. 
In the paper industry, it can be added to coating formulations to ensure smooth, even layers that contribute to improved printability and surface properties. 
Additionally, Addolink TT finds use in the textile industry for dye formulations, helping dyes and pigments to remain evenly distributed during processing, which results in brighter and more consistent fabric colors.

Addolink TTs effectiveness in stabilizing suspensions also makes it valuable in agricultural formulations such as pesticide sprays, where it ensures active ingredients are uniformly dispersed for better application and efficacy. 
By improving flow properties and preventing settling or separation, Addolink TT supports manufacturers across diverse sectors in producing high-quality, reliable products while optimizing processing conditions and reducing waste.

Safety Profile Of Addolink TT:
Poison by intraperitoneal route moderately toxic by other routes. 
A severe eye irritant combustible when exposed to heat or flame; can react with oxidzing materials. 

When heated to decomposition it emits acrid smoke and fumes.
Exposures to adipic acid cause pain, redness of the skin and eyes, tearing or lacrimation. 
Addolink TT has been reported as a non-toxic chemical. 

Excessive concentrations of adipic acid dust are known to cause moderate eye irritation, irritation to the skin, and dermatitis.
Addolink TT may be harmful if swallowed or inhaled. 
It causes respiratory tract irritation with symptoms of coughing, sneezing, and blood-tinged mucous.

Addolink TT, like many chemical additives, may pose certain health and safety hazards if not handled properly. 
Prolonged or repeated skin contact with Addolink TT can cause irritation or allergic reactions in sensitive individuals, so it is important to use protective gloves and clothing when working with this substance.
Inhalation of dust or vapors during handling or processing may lead to respiratory irritation, coughing, or discomfort, emphasizing the need for adequate ventilation and use of appropriate respiratory protection in industrial settings. 

Accidental ingestion of Addolink TT can cause gastrointestinal discomfort, nausea, or vomiting, so it should always be stored securely away from food and drink areas. 
Environmentally, improper disposal or spillage could potentially harm aquatic life, making it essential to follow local regulations for waste management and containment. 
Overall, adherence to standard safety protocols such as wearing personal protective equipment (PPE), ensuring good workplace hygiene, and following manufacturer guidelines can effectively minimize the risks associated with Addolink TT.