Nicotinic acid Chemical Properties
Melting point 236-239 °C(lit.)
Boiling point 260C
density 1.473
refractive index 1.5423 (estimate)
Fp 193°C
storage temp. 0-6°C
solubility 18g/l
pka 4.85(at 25℃)
form Powder
color White to off-white
PH 2.7 (18g/l, H2O, 20℃)
Water Solubility 1-5 g/100 mL at 17 ºC
Merck 14,6525
BRN 109591
Stability: Stable. Incompatible with strong oxidizing agents. May be light sensitive.
InChIKey PVNIIMVLHYAWGP-UHFFFAOYSA-N
CAS DataBase Reference 59-67-6(CAS DataBase Reference)
NIST Chemistry Reference Niacin(59-67-6)
EPA Substance Registry System Nicotinic acid (59-67-6)
Safety Information
Hazard Codes Xi,T,F
Risk Statements 36/37/38-36-39/23/24/25-23/24/25-11
Safety Statements 26-36-24/25-45-36/37-16-7
RIDADR UN1230 - class 3 - PG 2 - Methanol, solution
WGK Germany 1
RTECS QT0525000
F 8
Autoignition Temperature >365 °C Dust
TSCA Yes
HS Code 29362990
Hazardous Substances Data 59-67-6(Hazardous Substances Data)
Toxicity LD50 s.c. in rats: 5 g/kg (Brazda, Coulson)
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