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3-Hydroxy-2-naphthoic acid Structure

3-Hydroxy-2-naphthoic acid

Chemical 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
form  Fine Crystalline Powder
pka 3.02±0.30(Predicted)
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)
EWG's Food Scores 2
NCI Dictionary of Cancer Terms BON
FDA UNII C7S9D784HX
NIST Chemistry Reference 2-Naphthalenecarboxylic acid, 3-hydroxy-(92-70-6)
EPA Substance Registry System 3-Hydroxy-2-naphthoic acid (92-70-6)

Safety

Symbol(GHS)
Signal wordDanger
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.
NFPA 704:
0
2 0

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