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Trimethylol Propane(TMP)

English names:1,1,1-Trimethylolpropane
The alias name:2-Ethyl-2-(hydroxymethyl)-1,3-propanediol
Molecular formula:C6H14O3
The molecular weight:134.17
CAS NO:77-99-6
Appearance and properties: White Crystalline

Specifications

Item

Index

Superior product

First class product

Qualified product

Appearance

White flake solid

Slight color solid

Slight color solid

2-Ethyl-2-(hydroxymethyl)-1,3-propanediol,w/%

≥99.0

≥99.0

≥98.5

Hydroxy,w/%

≥37.5

≥37.5

≥37.0

Moisture,w/%

≤0.05

≤0.05

≤0.1

Acidity( counted by HCOOH),w/%

≤0.002

Chroma/Hazen unit

≤20

≤30

≤50

Crystallization point/°C

≥59.0

≥58.0

≥58.0

Ignition residue,w /%

≤0.005

 Application:

1.Alkyd resins

2.Saturated polyesters 

3.Synthetic lubricants

4.Monomers/oligomers for radiation curing 

5.Pigment coating

6.Polyurethanes for coatings and foams 

Di-TMP is increasingly used in environment-friendly applications like radiation-curing acrylate esters,resins for surface coatings with the highest demands on outdoor durability,synthetic lubricants,and as micronzied in PVC stabilizers.

Packing25kg,500kg or 1000kg bags, or upon customer's request.

Storage: Prevent moisture absorption. Store at low temperatures, preferably below 30℃, to avoid cake formation. Do not exceed 50℃. Stacking pallets during storage could increase the risk of caking