About Phosphoryl Trichloride
Phosphoryl trichloride (CAS No: 10025-87-3) is a chemical compound with the formula POCl3 and tetrahedral shape. It has three P-Cl bonds and a strong P=0 double bond. Other names include, phosphorus oxychloride, phosphoric trichloride.
Physical and Chemical Properties
- It is a colorless liquid which fumes in moist air.
- Odor: Pungent and Musty smell.
- Melting point: 1.25degree Celsius, Boiling point: 105.8 degree Celsius.
- Density: 1.67 g/ml, Molar Mass: 153.33 g/mol.
- It reacts with water and is soluble in benzene, chloroform, carbon disulfide and carbon tetrachloride.
- Gives out hydrogen chloride and phosphoric acid when phosphoryl trichloride reacts with water.
- When treated with alcohols and phenols, it gives phosphate esters.
Preparation of Phosphoryl Trichloride
There are many methods to produce phosphoryl trichloride which can be adopted by phosphoryl trichloride manufacturers. Few of them are listed here:
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Through Oxidation: Commercially, it is produced by oxidation of phosphorus trichloride with oxygen. Alternative way includes, oxidation of phosphorus trichloride with potassium chlorate.
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Oxygenations: This method involves phosphorus pentachloride and phosphorus pentoxide reaction.
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Other methods: Tricalcium phosphate reduction with carbon in chlorine gas presence. And other way reported is phosphorus pentoxide reaction with sodium chloride.
Phosphoryl Trichloride Uses
Industries buy phosphoryl trichloride from supplier, manufacturers or traders for many applications, few are listed below:
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The most important and major use by who buy phosphoryl trichloride is for manufacturing phosphate ester such as triphenyl phosphate and tricresyl phosphate. These esters are used as flame retardants and plasticizers for PVC.
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It is used as a safe phosphorous source in diffusion procedures in the semiconductor industry.
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It acts dehydrating agent in laboratories, like in amides to nitriles conversion.
Phosphoryl Trichloride MSDS
Phosphoryl Trichloride Handling and Storage
Phosphoryl trichloride suppliers, manufacturers or buyers need to consider some safety in handling and storage guides when they deal with or buy phosphoryl trichloride. Few of the instructions are listed here:
- Handling: Wash hands with soap and water before eating, drinking or smoking and while leaving work. Use non-sparkling tools. Do not breathe or ingest phosphoryl trichloride. Avoid eyes, skin and clothing contact. Do not add water to phosphoryl trichloride.
- Storage: Store phosphoryl trichloride in a cool, dry and well-ventilated place. Keep it away from sunlight and incompatible materials. Keep the container dry and tightly closed.
First Aid Measures
People handling or working with phosphoryl trichloride like phosphoryl trichloride suppliers, manufacturers or buyers should abide by following safety measures:
Inhalation: Move to fresh air. Give artificial respiration if breathing stops. Get medical attention.
Skin Contact: In case of skin contact drench affected area with plenty of water. Remove contaminated clothes and shoes. Seek medical attention in case irritation persists.
Eye Contact: Wash eyes with water for at least 15 minutes. Remove contact lenses and seek medical attention.
Ingestion: If ingested, do not induce vomiting. Do not give anything by mouth to an unconscious person and get medical attention.
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