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4-amino-5-hydroxynaphthalene-1,3-disulphonic acid

Product Name
4-amino-5-hydroxynaphthalene-1,3-disulphonic acid
CAS No.
82-47-3
Chemical Name
4-amino-5-hydroxynaphthalene-1,3-disulphonic acid
Synonyms
8-Amino-5,7-disulfo-1-naphthol;8,1,5,7-Aminonaphtholdisulfonic acid;1-Amino-8-naphthol-2,4-disulfonic acid;8-Amino-1-hydroxy-5,7-disulfonaphthalene;4-amino-5-hydroxynaphthalene-1,3-disulfonicaci;1-AMino-8-naphthol-2,4-disulfonic acid(SS Acid);4-Amino-5-hydroxy-1,3-naphthalenedisulfonic acid;4-Amino-5-Hydorxy-1,3-Naphthalenedisulfonic Acid;4-amino-5-hydroxynaphthalene-1,3-disulfonic acid;1-Amino-8-hydroxynaphthalene-2,4-disulfonic acid
CBNumber
CB7925021
Molecular Formula
C10H9NO7S2
Formula Weight
319.31
MOL File
82-47-3.mol
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4-amino-5-hydroxynaphthalene-1,3-disulphonic acid Property

EPA Substance Registry System
1,3-Naphthalenedisulfonic acid, 4-amino-5-hydroxy- (82-47-3)
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H314Causes severe skin burns and eye damage

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P330+P331IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P310Immediately call a POISON CENTER or doctor/physician.

P321Specific treatment (see … on this label).

P363Wash contaminated clothing before reuse.

P405Store locked up.

P501Dispose of contents/container to..…

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4-amino-5-hydroxynaphthalene-1,3-disulphonic acid Chemical Properties,Usage,Production

Chemical Properties

1-Amino-8-hydroxynaphthalene-2,4-disulfonic acid [82-47-3]. (4-amino-5-hydroxynaphthalene-1,3-disulfonic acid), Chicago acid, 2 S acid, C10H9NO7S2, Mr 319.3, and its acid sodium salt are readily soluble in water; the latter can be salted out with sodium chloride. In alkaline solution, coupling with diazo compounds takes place ortho to the hydroxyl group. Alkaline hydrolysis at 170℃ gives 1,8-dihydroxynaphthalene-2,4-disulfonic acid. Heating with dilute sulfuric acid results in desulfonation to give 1-amino-8-hydroxynaphthalene-2-sulfonic acid.

Uses

Chicago acid is used as a coupling component for C.I. Direct Blue 1, C.I. Direct Blue 22, and C.I. Direct Blue 76 (the dicopper complex of demethylated).

Production Methods

A solution of the disodium salt of naphthosultam-2,4-disulfonic acid is concentrated and mixed with potassium hydroxide liquor at 130℃. The temperature is raised to 155℃ over 20 h to complete the reaction. After being cooled and diluted with water, the melt is run into excess hydrochloric acid and the monopotassium salt is collected by filtration at 30℃ and slurry washed with recycling of the wash liquors. A yield of 87 % is obtained.

4-amino-5-hydroxynaphthalene-1,3-disulphonic acid Preparation Products And Raw materials

Raw materials

Preparation Products

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4-amino-5-hydroxynaphthalene-1,3-disulphonic acid Suppliers

Amadis Chemical Company Limited
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571-89925085
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0086-571-89925065
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sales@amadischem.com
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China
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131957
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Shanghai Aoyeah Chemical Technology Co., Ltd.
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021-021-64367138 15900495324
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QQ:2504753890
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sales@aoyeahchem.com
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Dideu Industries Group Limited
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+86-29-89586680 +86-15129568250
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1026@dideu.com
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China
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Hubei Jusheng Technology Co.,Ltd.
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18871490254
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027-59599243
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linda@hubeijusheng.com
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CHINA
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Shaanxi Dideu Medichem Co. Ltd
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029-61856358 15229202216
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029-88380327
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1020@dideu.com
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China
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Changzhou Bojia Biomedical Technology Co., Ltd.
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2122619822
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czbjpharma@126.com
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NINGBO JL NEW MATERIAL CO.,LTD
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0574-88552218 18969899212
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Henan Tianfu Chemical Co.,Ltd.
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+86-0371-55170693 +86-19937530512
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0371-55170693
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info@tianfuchem.com
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China
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Suzhou ARTK Medchem Co., Ltd.
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+86-512-68323658 +86-18168183658
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sales1@artkmedchem.com
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China
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39004
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View Lastest Price from 4-amino-5-hydroxynaphthalene-1,3-disulphonic acid manufacturers

Shaanxi Dideu Medichem Co. Ltd
Product
4-amino-5-hydroxynaphthalene-1,3-disulphonic acid 82-47-3
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
99.0%+
Supply Ability
100 tons
Release date
2019-12-31

82-47-3, 4-amino-5-hydroxynaphthalene-1,3-disulphonic acidRelated Search:


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