ChemicalBook > CAS DataBase List > Peri acid

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.

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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:


  • 8-azanylnaphthalene-1-sulfonic acid
  • 1,8-Naphthylaminesulfonic acid
  • 1-Aminonaphthalene-8-sulfonic acid
  • NAPHTHYLAMINOMONOSULFONIC ACID
  • PERI ACID
  • 1-Amino-8-naphthalenesulfonic Acid 1-Naphthylamine-8-sulfonic Acid Peri Acid
  • 1.8 Clevs Acid(Peri Acid)
  • 1-Amino-8-naphthalene sulfonate
  • 1-Aminonaphthalene-8-sulfonate
  • Naphthylaminemonosulfonic acid S
  • Schollkopf's acid (VAN)
  • 8-amino-1-naphthalenesulfonicaci
  • 8-Naphthylamine-1-sulfonicacid
  • 1,8-AMINO ACID
  • 1-AMINO-8-NAPHTHALENESULFONIC ACID
  • 1-AMINO-8-SULFONAPHTHALENE
  • 8-AMino-1-naphthalenesulfonic acid, 98%, 98%
  • 1-NAPHTHYLAMINE-8-SULFONIC ACID
  • 8-AMINO-1-NAPHTHALENESULFONIC ACID
  • 8-AMINONAPHTHALENE-1-SULFONIC ACID
  • 8-AMINONAPHTHALENE-1-SULPHONIC ACID
  • 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)
  • 1-Naphthalenesulfonic acid, 8-amino-
  • 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
  • bc0001