Trimethylolpropane
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Trimethylolpropane
structure -
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CAS No:
77-99-6
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Formula:
C6H14O3
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Chemical Name:
Trimethylolpropane
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Synonyms:
1,3-Propanediol,2-ethyl-2-(hydroxymethyl)-;2-Ethyl-2-(hydroxymethyl)-1,3-propanediol;Ethyltrimethylolmethane;Propane,1,1,1-tris(hydroxymethyl)-;TMP;1,1,1-Trimethylolpropane;1,1,1-Tris(hydroxymethyl)propane;2-Ethyl-2-(hydroxymethyl)propanediol;Ettriol;Trimethylolpropane;Tris(hydroxymethyl)propane;2,2-Bis(hydroxymethyl)-1-butanol;Ethriol;TMP (alcohol);1,1,1-Tri(hydroxymethyl)propane;RC Crosslinker TR;NSC 3576;Addolink TR;2-(Hydroxymethyl)-2-ethyl-1,3-propanediol;T 0480;2-Ethyl-2-hydroxymethyl-1,3-propandiol;9U02;30774-18-6;51811-73-5;53632-31-8;59218-55-2;65581-89-7;69896-09-9;77974-02-8;97649-49-5;101164-61-8;102984-18-9;110368-52-0;853320-12-4;2182590-63-0;2410621-75-7
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CAS No:
Description
Trimethylolpropane is a Colorless, hygroscopic crystals. Soluble in water and alcohol. Combustible.The three primary hydroxyl groups undergo the normal OH group reactions.
DryPowder; Liquid; OtherSolid; PelletsLargeCrystals; PelletsLargeCrystals, Liquid|COLOURLESS-TO-WHITE HYGROSCOPIC CRYSTALS OR PELLETS.
Trimethylolpropane Basic Attributes
134.174
134.17
201-074-9
090GDF4HBD
0366
3576
DTXSID2026448
WHITE POWDER OR PLATES|COLORLESS CRYSTALS
2905410000
Characteristics
60.69
-0.8
Crystalline tablets
1.176
58 °C
160 °C @ Press: 5 Torr
172 °C
1.484
Solubility in water at 20°C: miscible
Treasury ventilation low temperature drying
<1 mm Hg ( 20 °C)
4.8 (vs air)
LD50 orally in Rabbit: > 2500 mg/kg
vol% in air: 2.01.8
HYGROSCOPIC
~375 °C
Safety Information
NONH for all modes of transport
1
s22-S24/25
TY6470000
Separated from strong oxidants. Dry. Well closed.
Stable under normal temperatures and pressures.
P261, P264, P270, P271, P273, P280, P301+P310, P302+P352, P304+P340, P311, P312, P321, P322, P330, P361, P363, P391, P403+P233, P405, P501
H301
Combustible. Finely dispersed particles form explosive mixtures in air.
Not Classified
Use water spray, powder, alcohol-resistant foam, carbon dioxide.
Explosive limits , vol% in air: 2.0-11.8
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. Wash away remainder with plenty of water.
Separated from strong oxidants. Dry. Well closed.
A nuisance-causing concentration of airborne particles can be reached quickly when dispersed.
May cause mechanical irritation to the eyes and respiratory tract.
NO open flames. Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust.
PREVENT DISPERSION OF DUST!
Use local exhaust or breathing protection.
Protective gloves.
Wear safety goggles.
Drug Information
Fresh air, rest.
Remove contaminated clothes. Rinse skin with plenty of water or shower.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
1,1,1-tris(hydroxymethyl)propane
Cough.
Redness.
Trimethylolpropane Use and Manufacturing
N-butyraldehyde and formaldehyde in alkaline conditions for aldol condensation reaction, the reaction solution by concentration and desalination, and then ion exchange resin decolorization, purification, and finally evaporate with a thin film evaporator, cooling, rolling, the finished product. Raw material consumption quota: n-butyraldehyde (≥ 95%) 950kg / t, formaldehyde (37%) 3400kg / t. Refining method: General distillation with vacuum distillation. As the production of sodium formate mixed with easy pyrolysis, the need to use ion exchange resin to remove, and in the distillation by adding ammonium salt, hydroquinone or α-naphthol as a stabilizer. For further refinement, available ether ether acetone (1 : 1) to recrystallize. The triadimine as the catalyst of the condensation disproportionation method is n-butyraldehyde and formaldehyde as raw materials to triethylamine as a catalyst for aldol condensation reaction to produce 2, 2 - dimethylol butyraldehyde, and then with excess formaldehyde And alkali reaction occurs in the formation of trimethoprim propane, trimethylol propane, amine salt decomposition recovery catalyst triethylamine, and then in the distillation column to be trimethylol propane. The reaction is as follows: Condensation Hydrogenation With n-butyraldehyde and formaldehyde as raw materials, trihydroxyethylaldehyde is synthesized by using triethylamine as the catalyst to form 2, 2-dimethylolbutylaldehyde, and then catalyzed hydrogenation to produce trimethylolpropane , And the reaction solution after hydrogenation was distilled under reduced pressure to give trimethylolpropane. Hydrogenation catalyst is generally divided into two categories: one is palladium carbon catalyst, the reaction conditions are mild, the general reaction temperature is 140 ℃, the reaction pressure is 0.98MPa, but the price is more expensive; the other is copper catalyst, carrier γ aluminum oxide, the operating conditions for the reaction temperature of 130 ℃, pressure 3.0MPa.
Conditioning agent, manufacture of varnishes, alkylated resins, synthetic drying oils, urethane foams & coatings, silicone lube oils, lactone plasticizers, textile finishes, surfactants, epoxidation products.
Adhesives and sealant chemicals
Adhesives and sealants
50,000,000 - 100,000,000 lb|(1979) 1.68X10+10 GRAMS (ESTIMATE)|(1981) 1.62X10+10 GRAMS (ESTIMATE)
Adhesive manufacturing|1,3-Propanediol, 2-ethyl-2-(hydroxymethyl)-: ACTIVE
Computed Properties
Molecular Weight:134.17
XLogP3:-0.8
Hydrogen Bond Donor Count:3
Hydrogen Bond Acceptor Count:3
Rotatable Bond Count:4
Exact Mass:134.094294304
Monoisotopic Mass:134.094294304
Topological Polar Surface Area:60.7
Heavy Atom Count:9
Complexity:60.4
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes
Price Analysis
- Data: 2026-07-16
- Price: 15000.00Yuan/mt
- Change: 0
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