Trimethylolpropane CAS#77-99-6

CAS Number: 77-99-6
Chemical Formula: C6H14O3
Synonyms:

Trimethyloy propane
TrimethanolPropane
1,3-Propanediol, 2-ethyl-2-(hydroxymethyl)-

Appearance: White Powder

MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)

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Product Details

Trimethylolpropane CAS#77-99-6

Trimethylolpropane is a primary alcohol. It is used as a precursor for the manufacture of resins including alkyds, saturated polyesters and polyurethanes (polyester polyol and polycarbonate diol).Trimethylolpropane acts as a precursor to alkyd resins, high-gloss coatings and ion exchange resins. It is also employed as a multifunctional monomer utilized for the production of coatings, ethoxylated and propoxylated trimethylolpropane derivatives. Further, it serves as a building block in the polymer industry.

Trimethylolpropane Chemical Properties

Melting point	56-58 °C(lit.)
Boiling point	159-161 °C2 mm Hg(lit.)
bulk density	700kg/m3
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
Cosmetics Ingredients Functions	HUMECTANT SOLVENT
InChIKey	ZJCCRDAZUWHFQH-UHFFFAOYSA-N
LogP	-0.975 (est)
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	Trimethylolpropane (77-99-6)

Safety Information

Safety Statements	22-24/25
WGK Germany	1
RTECS	TY6470000
Autoignition Temperature	375 °C DIN 51794
TSCA	TSCA listed
HS Code	29054100
Hazardous Substances Data	77-99-6(Hazardous Substances Data)
Toxicity	LD50 orally in Rabbit: > 2500 mg/kg

Product Application of Trimethylolpropane CAS#77-99-6

Trimethylolpropane is used in saturated polyesters for coil coatings, alkyds for paints, polyurethanes for coatings and elastomers, acrylic acid esters for radiation curing, esters for synthetic lubricants, rosin esters and for surface treatment of pigments.
Large quantities of trimethylolpropane and its ethoxylated derivatives are used as precursors for urethanes and polyester resins. Another important field of application is in medium-oil and short-oil alkyd resins (→ Alkyd Resins). The resulting lacquers are characterized by excellent resistance to alkali, detergents, and water, combined with outstanding impact resistance and flexibility, as well as excellent clearness and clearness retention.

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