Dimethyl hydrogen phosphate(CAS: 813-78-5)

Dimethyl hydrogen phosphate (CAS: 813-78-5) is a colorless to light yellow liquid. It has a molecular weight of approximately 108.09 g/mol. The compound is highly soluble in water and ethanol. It reacts readily with bases and is moderately stable under normal conditions. It has a pKa of 1.75, indicating its acidity.

Dimethyl hydrogen phosphate is typically synthesized by the reaction of phosphoric acid with dimethyl sulfate. The process involves the addition of dimethyl sulfate to water or an alcohol solution of phosphoric acid, followed by workup to obtain the phosphate ester. The reaction is often catalyzed by sulfuric acid and has a yield of about 90%. High selectivity is achieved under controlled conditions.

Dimethyl hydrogen phosphate (CAS: 813-78-5) is used in various industries including pharmaceuticals for synthesizing certain organic compounds, polymers in the production of functionalized polymers, sensors for detecting specific chemicals, and semiconductors in the manufacturing process for silicon wafers. It is also used as a reagent in organic synthesis and catalysis.

When handling Dimethyl hydrogen phosphate (CAS: 813-78-5), appropriate personal protective equipment (PPE) such as gloves, goggles, and a lab coat should be worn. The substance should be used in a well-ventilated area or a fume hood. Spills should be cleaned up using an appropriate absorbent material and disposed of according to local regulations. Always refer to the Safety Data Sheet (SDS) for specific handling and disposal instructions.