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7-hydroxynaphthalene-1,3-disulfonic acid

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Origin: China

Cas No: 118-32-1

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 50 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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Products Specification
Product Description

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CAS No.: 118-32-1 Formula: C10H8O7S2 Molecular Weight: 304.29600

Basic Info

Chemical Name	7-hydroxynaphthalene-1,3-disulfonic acid
Synonyms	2-hydroxynaphthalene-6,8-disulfonic acid; G Acid; 2-hydroxy-6,8-naphthalenedisulfonic acid; 7-Hydroxy-1,3-naphthalenedisulfonic acid; 2-hydroxynaphthalene-6,8-disulfonate; 2-Naphthol-6,8-disulfonic acid; 1,7-hydroxy; 1,3-Naphthalenedisulfonic acid, 7-hydroxy-; \|A acid; 2-naphthol-6,8-disulphonic acid; 7-hydroxy-1,3-naphthalenedisulfonic acid hydrate;
CAS No.	118-32-1
Molecular Formula	C10H8O7S2
Molecular Weight	304.29600
PSA	145.73000
LogP	3.20040

Properties

Density	1.816g/cm3
Refractive Index	1.725

Safety Info

HS Code	2908999090

Synthesis Route

Water+m-sulfanilic acid diazonium salt→7-hydroxynaphthalene-1,3-disulfonic acid+1-Naphthol-4-sulfonic acid
2-naphthol→7-hydroxynaphthalene-1-sulfonic acid+7-hydroxynaphthalene-1,3-disulfonic acid
2-naphthol→7-hydroxynaphthalene-1,3-disulfonic acid+6-hydroxynaphthalene-2-sulfonic acid

Precursor

2-naphthol
Sulfuric acid
Water
Dipotassium 7-hydroxynaphthalene-1,3-disulphonate

Downstream Product

4,6-dihydroxynaphthalene-2-sulfonic acid
5-Hydroxy-2-Methyl-Benzoic Acid
7-oxo-8-(phenylhydrazinylidene)naphthalene-1,3-disulfonic acid
7-Amino-1,3-naphthalenedisulfonic acid, tech.

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