6-Hydroxynaphthalene-2-sulphonic acid

Product Name: 6-Hydroxynaphthalene-2-sulphonic acid
CAS No.: 93-01-6
Chemical Name: 6-Hydroxynaphthalene-2-sulphonic acid
Synonyms: Baum's acid;Schafferacid;Scheffers acid;SCHAEFFER ACID;SCHAFFER'S SALT;Schaffer`s acid;SCHAEFFER'S ACID;SCHAEFFER'S SALT;kyselinaschaferova;Kyselina schaferova
CBNumber: CB7301210
Molecular Formula: C10H8O4S
Formula Weight: 224.23
MOL File: 93-01-6.mol

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6-Hydroxynaphthalene-2-sulphonic acid Property

Melting point:: >300 °C(lit.)
Boiling point:: 335.63°C (rough estimate)
Density: 1.4643 (rough estimate)
refractive index: 1.5400 (estimate)
pka: 0.41±0.40(Predicted)
CAS DataBase Reference: 93-01-6(CAS DataBase Reference)
NIST Chemistry Reference: 2-Naphthalenesulfonic acid, 6-hydroxy-(93-01-6)
EPA Substance Registry System: 2-Naphthalenesulfonic acid, 6-hydroxy- (93-01-6)

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Safety

Hazard Codes: Xi
Risk Statements: 36/37/38
Safety Statements: 26-36
WGK Germany: 3

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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.

P302+P352IF ON SKIN: wash with plenty of soap and water.

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

P321Specific treatment (see … on this label).

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P362Take off contaminated clothing and wash before reuse.

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N-Bromosuccinimide Price

Matrix Scientific

Product number: 100442
Product name: 6-Hydroxynaphthalene-2-sulfonic acid
Purity: 95+%
Packaging: 250mg
Price: $435
Updated: 2021/12/16

AK Scientific

Product number: T979
Product name: 6-Hydroxynaphthalene-2-sulphonicacid
Packaging: 250mg
Price: $637
Updated: 2021/12/16

Matrix Scientific

Product number: 100442
Product name: 6-Hydroxynaphthalene-2-sulfonic acid
Purity: 95+%
Packaging: 1g
Price: $975
Updated: 2021/12/16

American Custom Chemicals Corporation

Product number: CHM0021585
Product name: 6-HYDROXYNAPHTHALENE-2-SULPHONIC ACID
Purity: 95.00%
Packaging: 1G
Price: $1076.92
Updated: 2021/12/16

Alichem

Product number: 93016
Product name: 6-Hydroxynaphthalene-2-sulfonicacid
Packaging: 1g
Price: $998
Updated: 2021/12/16

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6-Hydroxynaphthalene-2-sulphonic acid Chemical Properties,Usage,Production

Chemical Properties

2-Hydroxynaphthalene- 6 -sulfonic acid [93-01-6]. (6-hydroxynaphthalene-2-sulfonic acid), Schaeffer acid, C10H8O4S, Mr 224.23, is readily soluble in water, from which it can be recrystallized as the monohydrate (mp 129℃). The sodium salt is sparingly soluble in cold water (1.7 %) but forms a 30 % solution at 80℃. Coupling with diazo compounds results in substitution in the 1-position as does treatment with bromine, nitrous acid, or oleum. Fusion with potassium hydroxide gives 2,6-dihydroxynaphthalene, amination gives 2- aminonaphthalene-6-sulfonic acid, and sulfonation (20 % oleum, 25℃) results in 2-hydroxynaphthalene-1,6-disulfonic acid.

Uses

2-Hydroxynaphthalene-6-sulfonic acid is used as a coupling component for a wide range of azo dyes, e.g., C.I. Acid Orange 12, C.I. Food Yellow 3, and C.I. Food Orange 2. It is also used as an intermediate for more highly substituted dye components and synthetic tanning agents. The 1-nitroso derivative forms an iron complex (C.I. Acid Green 1) which was formerly used as a wool dye.

Preparation

2-Naphthol is added to a mixture of sulfuric acid and sodium sulfate, and the reaction is continued at 90 C for 12 h. After pouring the reaction mixture into water, the sodium salt of the product is precipitated by addition of salt and filtered at 60℃ to separate the isomers.

6-Hydroxynaphthalene-2-sulphonic acid Preparation Products And Raw materials

Raw materials

Preparation Products

7-hydroxynaphthalene-1-sulphonic acid Acid Black 26 Sunset Yellow FCF

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View Lastest Price from 6-Hydroxynaphthalene-2-sulphonic acid manufacturers

Career Henan Chemical Co

Product: 6-Hydroxynaphthalene-2-sulphonic acid 93-01-6
Price: US $1.00/g
Min. Order: 1g
Purity: 99%
Supply Ability: 200kg
Release date: 2019-12-30

93-01-6, 6-Hydroxynaphthalene-2-sulphonic acidRelated Search:

Phenmedipham 1,5-Naphthalenedisulfonic acid 2-Aminonaphthalene-1-sulfonic acid 1,1'-Bi-2-naphthol Terbinafine Hydrochloride 2-Naphthol CHLOROPHOSPHONAZO III 1-Naphthol PHENOLDISULFONIC ACID 4-Amino-5-methoxy-2-methylbenzensulfonic acid 6,6'-Oxybis- Acid Green 1 Sodium 2,3-dihydroxynaphthalene-6-sulfonate Ponceau S Acid Red 73 Acid Red 27 ACID RED 26 1-NITROSO-2-NAPHTHOL-3,6-DISULFONIC ACID DISODIUM SALT

2-Hydroxy-6-naphthalenesulfonic acid

2-hydroxy-6-naphthalenesulfonicacid

2-Hydroxynaphthalene-6-sulfonic acid

2-Naphtol-6-sulfosaure

6-hydroxy-2-naphthalenesulfonicaci

Baum's acid

beta-Naphthol-6-sulfonic acid

beta-naphthol-6-sulfonicacid

beta-Naphtholsulfonic acid S

beta-naphtholsulfonicacids

SCHAFFER'S SALT

SODIUM 6-HYDROXY-2-NAPHTHALENESULFONATE

2-naphthol-6-sulphonic acid

6-Hydroxy-6-Sulfonic Acid

Scheffers acid

6-hydroxy-2-naphthalenesulfonic acid

6-HYDROXY-2-NAPHTHALENESULFONIC ACID SODIUM SALT

6-Hydroxynaphthalene-2-sulphonic acid

2-naphthol-6-sulfonic acid

2-NAPHTHOL-6-SULFONIC ACID SODIUM

2-NAPHTHOL-6-SULFONIC ACID SODIUM SALT

2-NAPHTHOL-6-SULFONIC ACID SODIUM SALT DIHYDRATE

2-NAPTHOL-6-SULFONIC ACID

Schaffer`s acid

6-Hydroxy-2-Naphthalenesulphonic Acid

6-hydroxynaphthalene-2-sulfonic acid

2-Naphthol-6-potassiumsulfonate

2-Naphthalenesulfonic acid, 6-hydroxy-

1-naphthol-2-sulfonic acid

6-Hydroxy-2-naphthalenesulfonic acid sodium salt hydrate technical grade

Kyselina 2-naftol-6-sulfonova

Kyselina schaferova

kyselina2-naftol-6-sulfonova

kyselinaschaferova

schaeffer’sbeta-acid

schaeffer’sbeta-naphtholsulfonicacid

Schaeffer's beta-acid

Schaeffer's beta-naphtholsulfonic acid

Schafferacid

SODIUM 2-NAPHTHOL-6-SULFONATE

SCHAEFFER'S ACID

SCHAEFFER'S SALT

SCHAEFFER ACID

Ponceau 4R Impurity 4 Monomer

Olaquindox Impurity 6

93-01-6

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