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2-Amino-8-naphthol-6-sulfonic acid ( Gamma Acid)

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  Post Date: Apr 17,2013
  Expiry Date: Apr 17,2014
  Detailed Description: Cas No. :90-51-7 Quantity: 0.5Metric Tons
Specs:Ordinary product -Light Gray Powder ≥90%
Payment Method: T/T,L/C
Name:2-Amino-8-naphthol-6-sulfonic acid 　
Alias: Gamma Acid;
7-amino-1-naphthol-3-sulfonic acid;
7-amino-1-hydroxy-3-sulfonaphthalene;
6-amino-4-naphthol-2-sulfonic acid;
6-amino-4-hydroxy-2-naphthalenesulfonic acid; 2-Naphthalenesulfonicacid,6-amino-4-hydroxy-; 6-amino-4-hydroxy-2-naphthalenesulfonicaci
CAS NO.：90-51-7 　　
EINECS：202-000-8
Molecular Formula : C10H9O4NS
Molecular Weight : 239.24
Structural Formula :
Index:

INDEXX
SPEC

Appearance
Content
Amino
G acid
Bronner acid
DOG Acid
Ash
Moisture
Tide product
Gray paste 
≥55%
≤0.2%
≤1.0%
≤0.3%
 
 
Ordinary product
Light Gray Powder
≥90%
≤0.3%
≤1.0%
≤0.5%
≤0.3%
≤5.0%
Boutique
≥95%
≤0.2%
≤1.0%
≤0.3%
≤3.0%
≤3.0%
Boutique
≥98%
≤0.1%
≤1.0%
≤0.1%
≤0.5%
≤1.0%
 
Physicochemical Property:
Dissolvability: soluble in ethanol and diethyl ether, insoluble in water. At present, use G salt (7-hydroxy-1, 3-naphthalenedisulfonic acid, dipotassium salt) as raw material, through ammonization, alkali fusion, acidification to get. 　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　
Appearance is grayish paste or powder, γ acid content is >55%.
Raw material consumption quota: G salt ( 100% basis) 1520kg/t, sulfuricacid (99%) 1850kg/t, caustic soda ( 100% basis) 1200kg/t, sulfur dioxid（ industrial products）330kg/t, ammonia（99%）485kg/t.
 
Application: Mainly used for Azo dye intermediates, manufacturing activity and the direct dyes. Used in Direct diazotization black BH, Direct dark brown M, Direct red GB, Direct red F, Direct N and Direct Grey etc.
Package: 25 kg/bag ( pp woven bag with inner plastic) or as the customers’ requirement.

  CAS Registry Number:

90-51-7
  Synonyms: ;C.I. Developer 3;2-Naphthalenesulfonic acid, 6-amino-4-hydroxy-;Gamma Acid;7-AMINO-1-NAPHTHOL-3-SULFONIC ACID;7-AMINO-1-HYDROXY-3-SULFONAPHTHALENE;6-AMINO-4-NAPHTHOL-2-SULFONIC ACID;6-AMINO-4-HYDROXY-2-NAPHTHALENESULFONIC ACID;2-Naphthalenesulfonicacid,6-amino-4-hydroxy-;6-amino-4-hydroxy-2-naphthalenesulfonicaci
  Molecular Formula: C10H9NO4S
  Molecular Weight: 239.24
  Molecular Structure: 90-51-7 2-Amino-8-naphthol-6-sulfonic acid
  Hazard Symbols:  C:Corrosive;
  Risk Codes: R34:;
  Safety Description: S26:;
S27:;
S28:;
S36/37/39:;
S45:;

  Company: Shijiazhuang Fuqiang Dye Co., Ltd.     [ China ]        
  Contact: Stacy (Ms.)
  Tel: 86-311-67669430
  Fax: 86-311-67669431
  Email: fuqiang@fqdyes.com;stacy.fqdyes@gmail.com
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