Hexamethylphosphoramide CAS 680-31-9
  • Hexamethylphosphoramide CAS 680-31-9Hexamethylphosphoramide CAS 680-31-9

Hexamethylphosphoramide CAS 680-31-9

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Hexamethylphosphoric triamide, also known as hexaphosphoramide and hexamethylphosphoramide, is prepared by the reaction of dimethylamine and phosphorus oxychloride. Molecular weight 179.2. It is colorless or light yellow transparent liquid. Slightly fishy and astringent. Soluble in polar and non-polar solvents. It is miscible with common plasticizers such as dioctyl phthalate, dioctyl sebacate, and triphenyl phosphite in any proportion. Toxicity is similar to that of phosphate esters. Avoid contact with skin. The container should be tightly closed to prevent leakage and deterioration due to water absorption.

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Believe Chemical is China manufacturer & supplier who mainly produces Hexamethylphosphoramide CAS 680-31-9 with many years of experience. Hope to build business relationship with you. Shandong Believe Chemical Pte. Ltd. is a high-tech enterprise integrating R &D and sales of chemical technology. We are good at the advantages of chemical products in the field. Our products are exported to Europe, the United States, Japan, South Korea, Southeast Asia and other countries and regions. With science and technology as the guide, honesty as the foundation, quality as the life, and relying on the enterprise concept of innovation and development, we sincerely hope to establish exchanges and extensive cooperation with domestic and foreign customers to create prosperity!

Hexamethylphosphoramide CAS 680-31-9 Chemical Specification 

Product Name




Molecular Weight










White to beige Crystalline Powder or Crystals





melting point

7 °C (lit.)



1.03 g/mL at 25 °C (lit.)



The result conform with standard

Hexamethylphosphoramide CAS 680-31-9 Chemical Properties

Synonym:Eastman Inhibitor HPT;eastmaninhibitorhpt;ENT 50,882;ENT 50882;Hexmethylphosphoramide;HMPTA;HPT;Phosphoric acid hexamethyltriamide

CAS: 680-31-9

Molecular formula: C6H18N3OP

Molecular weight: 179.2

EINECS: 211-653-8

Storage conditions:Inert atmosphere,Room Temperature

Shelf life:2 years

Hexamethylphosphoramide CAS 680-31-9 Chemical Application

Used as high-efficiency anti-corrosion agent for polyvinyl chloride and other chlorine-containing resin products and coatings.

Effective aprotic solvent; phase chromatographic stationary solution (maximum operating temperature is 35°C, solvent is methanol), separation and analysis of hydrocarbon compounds, separation of alkanes, alkenes and alkynes; accelerator for stereospecific reactions; UV inhibition of polyvinyl chloride agent.

Commonly used aprotic solvents. UV inhibitor of polyvinyl chloride, weather-resistant solvent and excellent polar solvent, chemical sterilant, etc.

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