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Name Trimethylol propane
CAS 77-99-6
EINECS(EC#) 201-074-9
Molecular Formula C6H14O3
MDL Number MFCD00004694
Molecular Weight 134.17
MOL File 77-99-6.mol

Chemical Properties

Appearance Colorless, hygroscopic crystals. Soluble in water and alcohol. Combustible.
Melting point  56-58 °C(lit.)
Boiling point  159-161 °C2 mm Hg(lit.)
density  1.176
vapor density  4.8 (vs air)
vapor pressure  <1 mm Hg ( 20 °C)
refractive index  1.4850 (estimate)
Fp  172 °C
storage temp.  Store below +30°C.
solubility  H2O: 0.1 g/mL, clear
form  Flakes
pka 14.01±0.10(Predicted)
color  White
PH 6.5 (100g/l, H2O, 20℃)(External MSDS)
explosive limit 2-11.8%(V)
Water Solubility  soluble
BRN  1698309
Conditioning agent, manufacture of varnishes, alkyd resins, synthetic drying oils, urethane foams and coatings, silicone lubricant oils, lactone plasticizers, textile finishes, surfactants, epoxidation products.
CAS DataBase Reference 77-99-6(CAS DataBase Reference)
NIST Chemistry Reference 1,3-Propanediol, 2-ethyl-2-(hydroxymethyl)-(77-99-6)
EPA Substance Registry System 77-99-6(EPA Substance)

Safety Data

Safety Statements 
S22:Do not breathe dust .
S24/25:Avoid contact with skin and eyes .
WGK Germany  1
RTECS  TY6470000
Autoignition Temperature 375 °C DIN 51794
HS Code  29054100
Hazardous Substances Data 77-99-6(Hazardous Substances Data)
LD50 orally in Rabbit: > 2500 mg/kg

Hazard Information

Material Safety Data Sheet(MSDS)