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2-HYDROXY-1-NAPHTHOIC ACID

2-HYDROXY-1-NAPHTHOIC ACID Structure
2-HYDROXY-1-NAPHTHOIC ACID
  • CAS No.2283-08-1
  • Chemical Name:2-HYDROXY-1-NAPHTHOIC ACID
  • CBNumber:CB6443425
  • Molecular Formula:C11H8O3
  • Formula Weight:188.18
  • MOL File:2283-08-1.mol
2-HYDROXY-1-NAPHTHOIC ACID Property
  • Melting point 167 °C (dec.) (lit.)
  • Boiling point 283.17°C (rough estimate)
  • Density 1.2100 (rough estimate)
  • refractive index 1.6400 (estimate)
  • storage temp. Sealed in dry,Room Temperature
  • form powder to crystal
  • pka pK1:3.29;pK2:9.68 (20°C)
  • color White to Light red to Green
  • BRN 975575
  • CAS DataBase Reference 2283-08-1(CAS DataBase Reference)
  • EWG's Food Scores 1
  • FDA UNII E3H4QZ94UY
  • EPA Substance Registry System 1-Naphthalenecarboxylic acid, 2-hydroxy- (2283-08-1)
  • UNSPSC Code 12352100
  • NACRES NA.22
Safety
  • Hazard Codes  :Xi
  • Risk Statements  :36/37/38
  • Safety Statements  :26-36
  • WGK Germany  :2
  • TSCA  :Yes
  • HS Code  :2918199890
  • NFPA 704:
    0
    2 0
Hazard and Precautionary Statements (GHS)
  • Symbol(GHS)
  • Signal wordWarning
  • Hazard statements H315-H319-H335
  • Precautionary statements P261-P264-P271-P280-P302+P352-P305+P351+P338
2-HYDROXY-1-NAPHTHOIC ACID Price More Price(5)
  • Brand: Sigma-Aldrich(India)
  • Product number: H45809
  • Product name : 2-Hydroxy-1-naphthoic acid
  • Purity: 98%
  • Packaging: 5G
  • Price: ₹3788.75
  • Updated: 2022/06/14
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  • Brand: Sigma-Aldrich(India)
  • Product number: H45809
  • Product name : 2-Hydroxy-1-naphthoic acid
  • Purity: 98%
  • Packaging: 250G
  • Price: ₹11009.03
  • Updated: 2022/06/14
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  • Brand: TCI Chemicals (India)
  • Product number: H0280
  • Product name : 2-Hydroxy-1-naphthoic Acid
  • Purity: 
  • Packaging: 25G
  • Price: ₹1800
  • Updated: 2022/05/26
  • Buy: Buy
  • Brand: TCI Chemicals (India)
  • Product number: H0280
  • Product name : 2-Hydroxy-1-naphthoic Acid
  • Purity: 
  • Packaging: 250G
  • Price: ₹7800
  • Updated: 2022/05/26
  • Buy: Buy
  • Brand: ALFA India
  • Product number: ALF-L13426-30
  • Product name : 2-Hydroxy-1-naphthoic acid, 98%
  • Purity: 
  • Packaging: 250g
  • Price: ₹8557
  • Updated: 2022/05/26
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2-HYDROXY-1-NAPHTHOIC ACID Chemical Properties,Usage,Production

  • Chemical Properties 2-Hydroxy-1-naphthoic acid [2283-08-1], C11H8O3, Mr 188.17, has a mp of 156 – 157℃ (decomp. to 2-naphthol and CO2). The monosodium salt is unstable in hot aqueous solution. 2- Hydroxy-1-naphthoic acid is decarboxylated by nitrous acid, forming 1-nitroso-2-naphthol, and by diazo salts, forming a 1-azo-2-naphthol. An ethanolic solution of 2-hydroxy-1-naphthoic acid gives a dark blue color with iron(III) chloride. Chlorosulfonic acid at 30℃ gives the 6-sulfonyl chloride derivative.
  • Uses ?2-Hydroxy-1-naphthoic acid is an intermediate of minor importance in the synthesis of azo dyes.
  • Production Methods Treatment of the dried sodium or potassium salt of 2-naphthol with carbon dioxide at 120 C under pressure gives an 80 % yield of product after careful work-up. Solvents such as toluene, tetralin, or diphenyl oxide are patented alternatives.
2-HYDROXY-1-NAPHTHOIC ACID Preparation Products And Raw materials
Raw materials
Preparation Products
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2-HYDROXY-1-NAPHTHOIC ACID Spectrum
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