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Trimethyl Phosphate CAS 512-56-1 TMP

Trimethyl phosphate is an organic reagent, stable at room temperature, good solubility in a variety of resins, low viscosity, low color, so it can be used as a special solvent; epoxy resin additives (to reduce viscosity); polyester fibers processed in the anti-colorant (to improve the quality of dyeing); textile oil; used as a gasoline additives to prevent detonation, to improve the octane number, and to improve the stability of the leaded gasoline storage; also used as a Gasoline surface ignition control agent, high temperature tetraethyl lead decomposition inhibitor; non-corrosive gasoline additives; polyester fiber polymerization catalyst; graphite products modifier; plasticizers; extraction agents; pesticides and insecticides raw materials. Trimethyl phosphate undergoes hydrolysis when it meets water, so it should be protected from moisture when stored. Due to its hydrolysis and the release of PO43-, thus becoming a homogeneous precipitant for the formation of insoluble phosphate precipitates, often used as a precipitation reagent for zirconium, hafnium and the determination of semiconductor diffusion source. In addition, trimethyl phosphate is also a phospholipid extractant used for the extraction and separation of certain metal ions.
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  • 512-56-1

  • boss chem

  • 512-56-1

Trimethyl phosphate   TMP

CAS NO.512-56-1


Alias: METHYL PHOSPHATE;PHOSPHORIC ACID TRIMETHYL ESTER;(CH3O)3PO;Methyl phosphate, (MeO)3PO;NCI-C03781;O,O,O-Trimethyl phosphate;o,o,o-trimethylphosphate;Trimethoxyphosphine oxide

Molecular formula: C3H9O4P

Relative molecular mass: 140.07

Structural formula:

512-56-1


1. Performance and use:

Trimethyl phosphate (TMP), the simplest trialkyl ester of phosphoric acid, It is a colourless, nonvolatile liquid. soluble in most organic solvents, low solubility in water. 

Trimethyl phosphate is used as an intermediate in organic synthesis. Its industrial applications are much fewer than those of other organic phosphates.Trimethyl phosphate undergoes hydrolysis in contact with water, so it should be stored in a moisture-proof manner.

Trimethyl phosphate is also a phospholipid extractant for the extraction and separation of certain metal ions.

Trimethyl Phosphate is used as an electrolyte additive in the synthesis of lithium ion batteries. for controlling spark plug fouling, surface ignition and rumble in gasoline engines.
Trimethyl phosphate used as a reagent for determination of zirconium, solvent, extractant and gas chromatography stationary phase.


2. Technical indicators

Trimethyl phosphate Basic information
Product Name: Trimethyl phosphate
CAS: 512-56-1
MF: C3H9O4P
MW: 140.07
EINECS: 208-144-8
Trimethyl phosphate Chemical Properties
Melting point -46 °C (lit.)
Boiling point 197 °C (lit.)
density 1.197 g/mL at 25 °C (lit.)
vapor pressure 1.133 hPa (25 °C)
refractive index n20/D 1.395(lit.)
Fp 107 °C
storage temp. Store below +30°C.
solubility 1000g/l
form Liquid
color Clear
Specific Gravity 1.197
Water Solubility 500 G/L (25 ºC)
Sensitive Moisture Sensitive
BRN 1071731
Dielectric constant 21.26
InChIKey WVLBCYQITXONBZ-UHFFFAOYSA-N
LogP -0.46 at 25℃
CAS DataBase Reference 512-56-1(CAS DataBase Reference)
NIST Chemistry Reference Phosphoric acid, trimethyl ester(512-56-1)
EPA Substance Registry System Trimethyl phosphate (512-56-1)

COA

Analysis Specifications Testing Results
Characteristics: Colorless transparent liquid Colorless Transparent Liquid
Color Value     (APHA): ≤20 10
Assay    (GC%): ≥99 99.13
Acid Value     (mgKOH/g): ≤0.2 0.165
Water Content (%):     ≤0.2 0.085
Refractive Index(20℃): 1.393-1.397 1.395
Specific Gravity (20/20℃): 1.213-1.217 1.215


3. Packaging and storage

Trimethyl phosphate (TMP) liquid is packaged in plastic barrels, 30kg or 250kg per barrel, which can also be determined according to user needs.

Store in a cool and ventilated place indoors, avoid moisture and exposure, and the storage period is twelve months.


4 x. Safety protection

Suspected carcinogen with experimental carcinogenic, neoplastigenic, tumorigenic, and teratogenic data. Moderately toxic by ingestion, skin contact, intraperitoneal, and intravenous routes. Experimental reproductive effects. Human mutation data reported. Explodes when heat distilled. When heated to decomposition it emits toxic fumes of POx.


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