8-Aminonaphthalene-1,6-disulfonic acid

ChemicalBook > CAS DataBase List > 8-Aminonaphthalene-1,6-disulfonic acid

8-Aminonaphthalene-1,6-disulfonic acid

Product Name: 8-Aminonaphthalene-1,6-disulfonic acid
CAS No.: 129-91-9
Chemical Name: 8-Aminonaphthalene-1,6-disulfonic acid
Synonyms: AMINO E-ACID;Amino Epsilon acid;8-Aminonaphthalene-1;8-amino-6-naphthalenedisulfonicacid;8-Aminonaphthalene-1,6-disulfonicaci;1-NAPHTHYLAMINE 3 8 DISULPHONIC ACID;8-Aminonaphthalene-1,6-disulfonic acid;1-Aminonaphthalene-3,8-disulfonic acid;8-Amino-1,6-naphthalenedisulfonic acid;8-azanylnaphthalene-1,6-disulfonic acid
CBNumber: CB3355851
Molecular Formula: C10H9NO6S2
Formula Weight: 303.31
MOL File: 129-91-9.mol

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8-Aminonaphthalene-1,6-disulfonic acid Property

Density: 1.769±0.06 g/cm3(Predicted)
storage temp.: Keep in dark place,Inert atmosphere,Room temperature
pka: -1.03±0.40(Predicted)
CAS DataBase Reference: 129-91-9(CAS DataBase Reference)
EPA Substance Registry System: 1,6-Naphthalenedisulfonic acid, 8-amino- (129-91-9)

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H302Harmful if swallowed

H372Causes damage to organs through prolonged or repeated exposure

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P273Avoid release to the environment.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P330Rinse mouth.

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N-Bromosuccinimide Price

American Custom Chemicals Corporation

Product number: ING0002147
Product name: 8-AMINO-1,6-NAPHTHALENEDISULFONIC ACID SODIUM SALT
Purity: 95.00%
Packaging: 50G
Price: $3250.17
Updated: 2021/12/16

Chemenu

Product number: CM141262
Product name: 8-Aminonaphthalene-1,6-disulfonicacid
Purity: 95%
Packaging: 5g
Price: $297
Updated: 2021/12/16

Crysdot

Product number: CD41002110
Product name: 8-Aminonaphthalene-1,6-disulfonicacid
Purity: 95+%
Packaging: 5g
Price: $314
Updated: 2021/12/16

AHH

Product number: MT-46129
Product name: 8-Amino-1,6-naphthalenedisulfonicacidsodiumsalt
Purity: 98%
Packaging: 50g
Price: $580
Updated: 2021/12/16

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8-Aminonaphthalene-1,6-disulfonic acid Chemical Properties,Usage,Production

Chemical Properties

1-Aminonaphthalene-3,8-disulfonic acid [129-91-9]. (8-aminonaphthalene-1,6- disulfonic acid), amino epsilon acid, C10H9NO6S2, Mr 303.3, and its sodium salt are very soluble in water, but the barium salt is only sparingly soluble. Reduction with zinc and alkali (or with sodium amalgam) desulfonates to give 1-aminonaphthalene-3-sulfonic acid. The amino group is hydrolyzed by water at 180℃ to give 1-hydroxynaphthalene-3,8-disulfonic acid. Caustic fusion results in 1-amino-8-hydroxynaphthalene-3-sulfonic acid, whereas reaction with 10 % sodium hydroxide at 250℃ produces 1,8-dihydroxynaphthalene-3-sulfonic acid. Amination produces 1,3-diaminonaphthalene-8-sulfonic acid, but the production of 6,8- di(phenylamino)naphthalene-1-sulfonic acid (diphenyl epsilon acid) by reaction with aniline is more important.

Uses

Amino e acid is used mainly as an intermediate rather than as a color component, but the derived diphenyl e acid is used for safranine dyes such as C.I. Acid Blue 61.

Production Methods

Naphthalene is sulfonated under conditions that give predominately the 1,6- disulfonic acid. The sulfonation mass is nitrated with H2SO4–HNO3 at 30 – 40 ℃. After addition of dolomite and neutralization with lime, the liquor is reduced with iron and basified with magnesia, and the iron residues are removed. Careful adjustment of temperature and acidity precipitates the product as the acid magnesium salt, which is purified by dissolution in aqueous sodium carbonate and removal of magnesium carbonate; the diacid is precipitated with acid in 32 % overall yield.

8-Aminonaphthalene-1,6-disulfonic acid Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from 8-Aminonaphthalene-1,6-disulfonic acid manufacturers

WUHAN FORTUNA CHEMICAL CO., LTD

Product: 8-Aminonaphthalene-1,6-disulfonic acid 129-91-9
Price: US $0.00/KG
Min. Order: 1KG
Purity: 98%min
Supply Ability: 30tons/month
Release date: 2023-02-24

Shaanxi Dideu Medichem Co. Ltd

Product: 8-Aminonaphthalene-1,6-disulfonic acid 129-91-9
Price: US $0.00-0.00/KG
Min. Order: 1KG
Purity: 99.0%+
Supply Ability: 100 tons
Release date: 2019-12-31

Career Henan Chemical Co

Product: 8-Aminonaphthalene-1,6-disulfonic acid 129-91-9
Price: US $3.00/KG
Min. Order: 1KG
Purity: 98%
Supply Ability: 200KG
Release date: 2020-02-20

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