Peri acid

Product Name: Peri acid
CAS No.: 82-75-7
Chemical Name: Peri acid
Synonyms: 8-AMINONAPHTHALENE-1-SULFONIC ACID;PERI ACID;1,8-AMINO ACID;Perigastric acid;Schollkopf's acid (VAN);8-SULFO-1-NAPHTHYLAMINE;1.8 Clevs Acid(Peri Acid);1-AMINO-8-SULFONAPHTHALENE;8-Naphthol-1-sulfonic acid;Peri acid ISO 9001：2015 REACH
CBNumber: CB0680336
Molecular Formula: C10H9NO3S
Formula Weight: 223.25
MOL File: 82-75-7.mol

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Peri acid Property

Melting point:: >350°C
Boiling point:: 220°C (rough estimate)
Density: 1.3588 (rough estimate)
refractive index: 1.6500 (estimate)
pka: pK1: 5.03 (25°C)
form: powder to crystal
color: Light yellow to Brown
Water Solubility: 0.2g/L(21 ºC)
Merck: 14,6405
BRN: 983230
CAS DataBase Reference: 82-75-7(CAS DataBase Reference)
EPA Substance Registry System: 1-Naphthalenesulfonic acid, 8-amino- (82-75-7)

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Safety

Hazard Codes: C
Risk Statements: 34
Safety Statements: 26-27-36-45
TSCA: Yes
HS Code: 29214500

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing 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.

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.

P405Store locked up.

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N-Bromosuccinimide Price

TCI Chemical

Product number: A0350
Product name: 8-Amino-1-naphthalenesulfonic Acid
Purity: >98.0%(HPLC)
Packaging: 25g
Price: $30
Updated: 2024/03/01

TCI Chemical

Product number: A0350
Product name: 8-Amino-1-naphthalenesulfonic Acid
Purity: >98.0%(HPLC)
Packaging: 100g
Price: $79
Updated: 2024/03/01

Alfa Aesar

Product number: L17616
Product name: 8-Aminonaphthalene-1-sulfonic acid, 98%
Packaging: 100g
Price: $66.3
Updated: 2021/12/16

Alfa Aesar

Product number: L17616
Product name: 8-Aminonaphthalene-1-sulfonic acid, 98%
Packaging: 25g
Price: $29.7
Updated: 2021/12/16

TCI Chemical

Product number: A0350
Product name: 8-Amino-1-naphthalenesulfonic Acid
Purity: >98.0%(HPLC)
Packaging: 500g
Price: $119
Updated: 2023/01/07

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Peri acid Chemical Properties,Usage,Production

Chemical Properties

Dark green powder. 1-Aminonaphthalene-8-sulfonic acid [82- 75-7]. (8-aminonaphthalene-1-sulfonic acid), Peri acid, C10H9NO3S, Mr 223.24, crystallizes as the monohydrate and is sparingly soluble even in boiling water. The sodium salt is also sparingly soluble in water. Caustic fusion at 200℃ produces 8-amino-1- naphthol, whereas slow hydrolysis with 10 % sodium hydroxide at 220 – 260℃ yields 1,8- dihydroxynaphthalene. Sulfonation with cold 10 % oleum produces 1-aminonaphthalene-4,8- disulfonic acid, whereas hot concentrated sulfuric acid results in slow isomerization into naphthionic acid.

Uses

Intermediate of dyestuff. Dehydration with phosphorus oxychloride yields naphthosultam, and diazotization followed by hydrolysis results in naphthosultone, the intermediate for 1- hydroxynaphthalene-8-sulfonic acid. Diazotization followed by a Sandmeyer cyanide reaction gives 8-cyanonaphthalene-1-sulfonic acid, one of the most industrially important Sandmeyer reaction products because the nitrile forms the lactam, naphthostyril [130-00-7], upon treatment with concentrated alkali at 185℃. Hydrolysis of naphthostyril with dilute alkali yields 8-aminonaphthalene-1-carboxylic acid, which is the key intermediate for production of anthanthrone vat dyes via 1,10 -binaphthyl8,80 -dicarboxylic acid.

Production Methods

Naphthalene is converted to naphthalene-1-sulfonic acid. The crude sulfonation product is diluted with sulfuric acid, and 67.5 % nitric acid is added slowly at 30℃ to give the 5- and 8-nitro derivatives. The products are converted to the readily soluble magnesium salts by addition of a slurry of dolomite. The reaction mixture is neutralized with chalk and filtered hot. The filtrate is run into a suspension of iron powder in boiling water, which is kept slightly acidic with sulfuric acid. When reduction is complete, dissolved iron is precipitated by addition of magnesia, the iron residues are filtered off while hot, and the resulting liquor is acidified to pH 4.5 with sulfuric acid to give 99 % pure Peri acid in 48 % yield. The filtrates are further acidified to precipitate crude Laurent’s acid. This may be purified via its magnesium salt to give a 17 % yield of pure 1,5-isomer.

Peri acid Preparation Products And Raw materials

Raw materials

1-Naphthylamine-7-sulfonic acid Naphthalene Cleve acid 1-Aminonaphthalene-6-sulfonic acid DOLOMITE Nitric acid Iron Sulfuric acid Dolomite (CaMg(CO3)2), dead-burned refractory

Preparation Products

1-AMINO-8-NAPHTHOIC ACID 1-Hydroxynaphthalene-8-sulfonic acid 5-Amino-1-naphthalenesulfonic acid 8-Anilino-1-naphthalenesulfonic acid

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Peri acid Suppliers

Americas 1 Belgium 2 China 233 Europe 1 France 2 Germany 6 India 34 Japan 3 Singapore 1 South Korea 1 Switzerland 1 The Netherlands 1 United Kingdom 10 United States 31 Global 327

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View Lastest Price from Peri acid manufacturers

Hebei Weibang Biotechnology Co., Ltd

Product: Peri acid 82-75-7
Price: US $100.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 10 mt
Release date: 2024-11-07

Hebei Weibang Biotechnology Co., Ltd

Product: Peri acid 82-75-7
Price: US $0.00-0.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 500000kg
Release date: 2024-10-31

Hebei Yanxi Chemical Co., Ltd.

Product: Peri acid 82-75-7
Price: US $30.00-12.00/kg
Min. Order: 1kg
Purity: 0.99
Supply Ability: 20 tons
Release date: 2023-10-25

82-75-7, Peri acidRelated Search:

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1-Amino-8-naphthalenesulfonic Acid 1-Naphthylamine-8-sulfonic Acid Peri Acid

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8-AMino-1-naphthalenesulfonic acid, 98%, 98%

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8-SULFO-1-NAPHTHYLAMINE

ALPHA-NAPHTHYLAMINE-8-SULFONIC ACID

1-Amino-8-naphtalenesulfonic acid

1-Naphthylamine-8-sulphonic acid

8-amino-1-naphthalenesulfonic acid (peri acid)

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8-Naphthol-1-sulfonic acid

8-Amino-1-naphthalenesulfonicAcid&gt

Peri acid ISO 9001：2015 REACH

Peri acid/8-Amino-1-naphthalenesulfonic acid

Perigastric acid

82-75-7

Intermediates of Dyes and Pigments

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