Trimethyl phosphate
Structural formula | |||||||||||||||||||
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General | |||||||||||||||||||
Surname | Trimethyl phosphate | ||||||||||||||||||
other names |
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Molecular formula | C 3 H 9 O 4 P | ||||||||||||||||||
Brief description |
colorless liquid with a pleasant odor |
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External identifiers / databases | |||||||||||||||||||
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properties | |||||||||||||||||||
Molar mass | 140.08 g mol −1 | ||||||||||||||||||
Physical state |
liquid |
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density |
1.21 g cm −3 |
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Melting point |
-46 ° C |
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boiling point |
197 ° C |
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Vapor pressure |
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solubility |
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Refractive index |
1.395 (20 ° C) |
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safety instructions | |||||||||||||||||||
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Toxicological data |
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As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C |
Trimethyl phosphate is a chemical compound from the group of phosphoric acid esters .
Extraction and presentation
Trimethyl phosphate can be obtained by reacting phosphorus oxychloride with methanol .
properties
Trimethyl phosphate is a flammable, hardly ignitable, fire-suffocating, colorless liquid with a pleasant odor, which is easily soluble in water. It decomposes when heated. The flash point of the compound is 150 ° C.
use
Trimethyl phosphate is used as a stabilizer and antioxidant , as a gasoline additive to control surface ignition, as a methylating agent (especially for sterically hindered carboxylic acids ), as a chemical intermediate in the production of polymethyl polyphosphates, as a flame retardant solvent for paints and polymers, and as a catalyst in the production of polymers and Resins used.
Individual evidence
- ↑ a b c d e f g h i j k l m n o Entry on trimethyl phosphate in the GESTIS substance database of the IFA , accessed on January 9, 2019(JavaScript required) .
- ↑ a b c Jürgen Falbe, Manfred Regitz: Römpp Lexikon Chemie, 10th edition, 1996-1999 Volume 6: T - Z . Georg Thieme Verlag, 2014, ISBN 3-13-200061-2 , p. 4658 ( limited preview in Google Book search).
- ↑ Data sheet Trimethyl phosphate, ≥99% from Sigma-Aldrich , accessed on January 9, 2019 ( PDF ).
- ↑ a b Entry on trimethyl phosphate in the Hazardous Substances Data Bank , accessed January 9, 2019.