3-Hydroxy-2-naphthoic acid , 97% , 92-70-6

Synonym(s):
β-Hydroxynaphthoic acid;3-Hydroxy-2-naphthoic acid;BON

CAS NO.：92-70-6

Empirical Formula: C11H8O3

Molecular Weight: 188.18

MDL number: MFCD00004103

EINECS: 202-180-8

PRODUCT Properties

• Melting point: 218-221 °C(lit.)
• Boiling point: 283.17°C (rough estimate)
• Density: 1.43 g/cm3 (23℃)
• refractive index: 1.7160 (estimate)
• Flash point: >150°C
• storage temp.: Sealed in dry,Room Temperature
• solubility: 0.072g/l practically insoluble
• pka: 3.02±0.30(Predicted)
• form: Fine Crystalline Powder
• color: Yellow to beige-brown
• Water Solubility: PRACTICALLY INSOLUBLE
• λmax: 395nm(H2O (pH 3.5))(lit.)
• Merck: 14,4835
• BRN: 744100
• CAS DataBase Reference: 92-70-6(CAS DataBase Reference)
• NIST Chemistry Reference: 2-Naphthalenecarboxylic acid, 3-hydroxy-(92-70-6)
• EPA Substance Registry System: 3-Hydroxy-2-naphthoic acid (92-70-6)

Description and Uses

2-hydroxy-3-naphthoic acid (BON) is coupled with diazo compounds and their calcium salts are bright red bleed resistance pigments. The somewhat higher cost manganese salt shows better exterior durability than the calcium or barium salts. The BON red pigments are characterized by an extremely high degree of color stability, resistance to acids and alkalies and are nontoxic.

Safety

• Symbol(GHS): GHS05,GHS07
• Signal word: Danger
• Hazard statements: H302-H318-H335-H412
• Precautionary statements: P261-P264-P273-P280-P301+P312-P305+P351+P338
• Hazard Codes: Xn,Xi
• Risk Statements: 22-36-36/37/38
• Safety Statements: 26-37/39
• WGK Germany: 1
• RTECS: QL1755000
• TSCA: Yes
• HS Code: 29182910
• Hazardous Substances Data: 92-70-6(Hazardous Substances Data)
• Toxicity: The acute oral LD50 of 3-Hydroxy-2-naphthoic acid in rats was 823-1040 mg/kg bw.