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
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)
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.
N-Bromosuccinimide Price
- 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
- Product number
- CM141262
- Product name
- 8-Aminonaphthalene-1,6-disulfonicacid
- Purity
- 95%
- Packaging
- 5g
- Price
- $297
- Updated
- 2021/12/16
- Product number
- CD41002110
- Product name
- 8-Aminonaphthalene-1,6-disulfonicacid
- Purity
- 95+%
- Packaging
- 5g
- Price
- $314
- Updated
- 2021/12/16
- Product number
- MT-46129
- Product name
- 8-Amino-1,6-naphthalenedisulfonicacidsodiumsalt
- Purity
- 98%
- Packaging
- 50g
- Price
- $580
- Updated
- 2021/12/16
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
- 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
- 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
- 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