1,1,1-TRIMETHYLOLPROPANE

PRODUCT IDENTIFICATION
CAS NO. 77-99-6

TRIMETHYLOLPROPANE
EINECS NO. 201-074-9
FORMULA C2H5C(CH2OH)3
MOL WT. 134.18
H.S. CODE 2905.41

TOXICITY

 Oral rat LD50: 14100 mg/kg
SYNONYMS 2-Ethyl-2-(hydroxymethyl)-1,3-propanediol;
Trimethylol propane;  propylidynetrimethanol; 1,1,1-Tris(hydroxymethyl)propane; Ethriol; Ethyltrimethylolmethane; Hexaglycerine; 2,2-Bis(hydroxymethyl)-1-butanol; Propylidintrimethanol (German); Propilidintrimetanol (Spanish); Propylidynetriméthanol (French);

DERIVATION

  

CLASSIFICATION

 

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE

white flakes
MELTING POINT 55 - 59 C
BOILING POINT  
SPECIFIC GRAVITY 1.17 - 1.18
SOLUBILITY IN WATER Freely soluble (Soluble in alcohol, glycerin. Insoluble in hydrocarbon solvents)
pH

4 - 7
VAPOR DENSITY 4.8
AUTOIGNITION

295 C
NFPA RATINGS  

REFRACTIVE INDEX

  
FLASH POINT

 
STABILITY Stable under ordinary conditions. Hygroscopic.

APPLICATIONS
Trimethylolpropane, containing three primary hydroxyl groups in a quaternary mole structure, is a white crystalline solid or clear liquid in molten form at high temperature; melting at 57 C; soluble in water, alcohol, glycerin; insoluble in hydrocarbon solvents. It is prepared by the hydrogenation reaction of aldehyde ( n-butyraldehyde and formaldehyde). It is used as an important raw material in manufacturing polyesters, alkyd and urethane resins. It improves heat resistance, color stability, balance between toughness and flexibility. It is also used in lubricating oils and plasticizers as well as in radiation curing monomers or oligomers.
SALES SPECIFICATION

APPEARANCE

white flakes

PURITY

99.0% min
HYDROXYL VALUE

1230 min ( mg KOH/kg)

ASH

0.005% max

WATER

0.1% max
TRANSPORTATION
PACKING 25KGS  in bag and big bag
HAZARD CLASS Not regulated
UN NO.  
OTHER INFORMATION
Hazard Symbols: n/a, Risk Phrases: n/a, Safety Phrases: 24/25