6-Amino-1-naphthalenesulfonic acid

Product Name: 6-Amino-1-naphthalenesulfonic acid
CAS No.: 81-05-0
Chemical Name: 6-Amino-1-naphthalenesulfonic acid
Synonyms: D ACID;DAHL'S ACID;2-Naphthylamine-5-sulfonicaci;2-NAPHTHYLAMINE-5-SULFONIC ACID;6-Aminonaphthalene-1-sulfonicaci;2-AMINO-5-NAPHTHALENESULFONIC ACID;2-AMINONAPHTHALENE-5-SULFONIC ACID;BETA-NAPHTHYLAMINE-5-SULFONIC ACID;6-aminonaphthalene-1-sulfonic acid;6-AMINO-1-NAPHTHALENESULFONIC ACID
CBNumber: CB3782572
Molecular Formula: C10H9NO3S
Formula Weight: 223.25
MOL File: 81-05-0.mol

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6-Amino-1-naphthalenesulfonic acid Property

Density: 1.3588 (rough estimate)
refractive index: 1.6500 (estimate)
storage temp.: under inert gas (nitrogen or Argon) at 2–8 °C
form: powder to crystal
pka: -0.33±0.40(Predicted)
color: White to Light yellow to Light red
Water Solubility: 0.33g/L(20 ºC)
Merck: 14,6407
CAS DataBase Reference: 81-05-0(CAS DataBase Reference)

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Safety

RIDADR: 1759
HazardClass: 8
PackingGroup: III
HS Code: 29269095

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

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

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N-Bromosuccinimide Price

TCI Chemical

Product number: A0347
Product name: 6-Amino-1-naphthalenesulfonic Acid
Purity: >97.0%(HPLC)(T)
Packaging: 25g
Price: $66
Updated: 2024/03/01

TCI Chemical

Product number: A0347
Product name: 6-Amino-1-naphthalenesulfonic Acid
Purity: >97.0%(HPLC)(T)
Packaging: 500g
Price: $555
Updated: 2024/03/01

TRC

Product number: A576808
Product name: 6-Amino-1-naphthalenesulfonic Acid
Packaging: 2.5g
Price: $75
Updated: 2021/12/16

AK Scientific

Product number: L196
Product name: 2-Aminonaphthalene-5-sulfonicacid
Packaging: 1g
Price: $21
Updated: 2021/12/16

Oakwood

Product number: 104401
Product name: 6-Amino-1-naphthalenesulfonic Acid
Purity: 95%
Packaging: 1g
Price: $40
Updated: 2021/12/16

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6-Amino-1-naphthalenesulfonic acid Chemical Properties,Usage,Production

Chemical Properties

2-Aminonaphthalene-5-sulfonic acid [81-05-0]. (6-aminonaphthalene-1-sulfonic acid), Dahl’s acid, Dressel acid, D acid, C10H9NO3S, Mr 223.24, crystallizes from water as needles although only 0.4 % soluble at 100℃. The sodium, calcium, and barium salts are moderately soluble in water. Bromination in acetic acid gives the 1-bromo derivative. Sulfonation with oleum gives a mixture of 2-aminonaphthalene-5,7-disulfonic acid together with some 1,5-disulfonic acid. Fusion with potassium hydroxide at 260℃ yields 6-amino-1-naphthol.

Production Methods

Tobias acid is added to a mixture of sulfuric acid and oleum, and the reaction is completed by stirring for 12 h at 25℃. The resulting sulfonation mass, containing mainly 2-aminonaphthalene-1,5-disulfonic acid, is poured into water and heated at 105℃ for 3 h to desulfonate and precipitate the product which, after cooling, is filtered off; the yield is 95 %.

6-Amino-1-naphthalenesulfonic acid Preparation Products And Raw materials

Raw materials

2-Naphthylamine Sodium sulfonate

Preparation Products

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6-Amino-1-naphthalenesulfonic acid Suppliers

Americas 1 China 109 Europe 1 Germany 2 India 11 Japan 5 United Kingdom 5 United States 19 Global 153

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China Langchem Inc.

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View Lastest Price from 6-Amino-1-naphthalenesulfonic acid manufacturers

Hebei Duling International Trade Co. LTD

Product: 2-aminonaphthalene-5-sulfonic acid 81-05-0
Price: US $30.00/kg
Min. Order: 1kg
Purity: 99%
Supply Ability: 20 tons
Release date: 2023-03-15

Shaanxi Dideu Medichem Co. Ltd

Product: 6-Amino-1-naphthalenesulfonic Acid 81-05-0
Price: US $0.00-0.00/KG
Min. Order: 1KG
Purity: 99.0%+
Supply Ability: 100 tons
Release date: 2019-12-30

Career Henan Chemical Co

Product: 6-Amino-1-naphthalenesulfonic acid 81-05-0
Price: US $2.00/KG
Min. Order: 1KG
Purity: 98%
Supply Ability: 100g , 1kg, 5kg , 50kg
Release date: 2020-01-07

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81-05-0

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Intermediates of Dyes and Pigments