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2-Naphthylamine-5,7-disulfonic acid

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Name

2-Naphthylamine-5,7-disulfonic acid

EINECS 204-246-1
CAS No. 118-33-2 Density 1.77 g/cm3
Solubility Melting Point
Formula C10H9NO6S2 Boiling Point
Molecular Weight 303.30 Flash Point
Transport Information UN 1759 Appearance
Safety Risk Codes
Molecular Structure Molecular Structure of 118-33-2 (2-Naphthylamine-5,7-disulfonic acid) Hazard Symbols
Synonyms

6-aminonaphthalene-1,3-disulfonic acid;2-Amino-5, 7-naphthalenedisulfonic acid;2-Naphthylamine, 5,7-disulfo-;Kyselina amino-i;.beta.-Naphthylamine-5,7-disulfonic acid;6-AMINO-NAPHTHALENE-1,3-DISULFONIC ACID;Naphthalene-1,3-disulfonic acid, 6-amino-;6-Amino-1, 3-naphthalenedisulfonic acid;Amino-J-acid;Amino-I acid;1,3-Naphthalenedisulfonic acid,6-amino-;2-Aminonaphthalene-5,7-disulfonic acid;6-Amino-1,3-naphthalenedisulfonic acid;2-Naphthylamine-5, 7-disulfonic acid;2-Naftylamin-5,7-disulfonan sodny;Amino-J acid;1, 3-Naphthalenedisulfonic acid, 6-amino-;

 

2-Naphthylamine-5,7-disulfonic acid Chemical Properties

IUPAC Name: 6-Aminonaphthalene-1,3-disulfonic acid
Synonyms : 6-Amino-1,3-naphthalenedisulfonic acid
Molecular Structure :
Molecular Formula : C10H9NO6S2
Molecular Weight : 303.30
CAS NO: 118-33-2
EINECS : 204-246-1
Index of Refraction: 1.733
Density: 1.769 g/cm3
Mol File: 118-33-2.mol
Appearance: 6-Aminonaphthalene-1,3-disulfonic acid (CAS NO. 118-33-2) is white shiny long prismatic needle-like crystal,
Product Categories: Intermediates of Dyes and Pigments;Anilines, Aromatic Amines and Nitro Compounds;Organic acids

2-Naphthylamine-5,7-disulfonic acid Uses

 6-Aminonaphthalene-1,3-disulfonic acid (CAS NO. 118-33-2) is used for dye intermediates,mainly is the intermediates to produce J acid, double-J Acid, Phenyl J acid and scarlet acid.

2-Naphthylamine-5,7-disulfonic acid Production

Production methods: 6-Aminonaphthalene-1,3-disulfonic acid (CAS NO. 118-33-2) is derived from hydrolysis of 2 - Naphthylamine -1,5,7 - 3-sulfonic acid . put sulfuric acid, sodium sulfate and 2 - naphthylamine -1,5,7 - 3-sulfonic acid in water at 110-120 °C  4h, cooling and filtering, washing in sodium sulfate solution, filtered cake obtained , which is  6-Aminonaphthalene-1,3-disulfonic acid (CAS NO. 118-33-2).

2-Naphthylamine-5,7-disulfonic acid Toxicity Data With Reference

1.    

skn-rbt 2 mg/24H SEV

    85JCAE    Prehled Prumyslove Toxikologie; Organicke Latky Marhold, J.,Prague, Czechoslovakia.: Avicenum,1986,1059.
2.    

eye-rbt 750 µg/24H SEV

    28ZPAK    Sbornik Vysledku Toxixologickeho Vysetreni Latek A Pripravku Marhold, J.V.,Institut Pro Vychovu Vedoucicn Pracovniku Chemickeho Prumyclu Praha,Czechoslovakia.: 1972,189.
3.    

orl-rat LD50:2000 mg/kg

    28ZPAK    Sbornik Vysledku Toxixologickeho Vysetreni Latek A Pripravku Marhold, J.V.,Institut Pro Vychovu Vedoucicn Pracovniku Chemickeho Prumyclu Praha,Czechoslovakia.: 1972,189.

2-Naphthylamine-5,7-disulfonic acid Consensus Reports

Reported in EPA TSCA Inventory.

2-Naphthylamine-5,7-disulfonic acid Safety Profile

RIDADR 1759
HazardClass 8
PackingGroup III

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