Description

Phosphine is a highly reactive, colorless, and flammable gas with a characteristic pungent odor, widely recognized by its CAS number 7803-51-2. It serves as a critical precursor and reagent in the synthesis of organophosphorus compounds and advanced materials. This essential chemical is primarily utilized in the semiconductor, fumigation, and specialty chemical manufacturing industries.

Application

• Semiconductor Manufacturing: Used as a crucial dopant gas for introducing phosphorus into silicon wafers during chemical vapor deposition (CVD) and epitaxial growth processes.
• Fumigant: Employed for the effective control of insects and rodents in stored agricultural commodities, such as grains and tobacco, in sealed environments.
• Chemical Synthesis: Acts as a fundamental building block for producing various organophosphorus compounds, including flame retardants, plasticizers, and pharmaceuticals.
• Catalyst & Ligand Precursor: Serves as a source of phosphorus in the preparation of metal-phosphine complex catalysts used in hydroformylation and other industrial catalytic processes.
• Reducing Agent: Utilized in specific metallurgical and chemical reduction applications due to its strong reducing properties.

Basic Information

Product Name	Phosphine
CAS No.	7803-51-2
Molecular Formula	PH₃
Molecular Weight	34.00 g/mol
Synonyms	Hydrogen phosphide; Phosphorus trihydride; Phosphorated hydrogen; Phosphamine; Celphos; Detia Gas-Ex-B; Phostoxin; AIP (Aluminum Phosphide decomposition product)
EINECS	232-260-8

Quality Control

Our Phosphine is produced and handled under stringent quality management protocols to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) detailing key parameters such as purity and impurity profiles. Our quality systems are designed to meet the exacting standards required by the electronics and specialty chemical industries.

Storage

Store in approved, dedicated, and properly labeled high-pressure gas cylinders in a cool, well-ventilated, and fire-resistant area, away from direct sunlight, heat sources, and incompatible materials. Cylinders must be securely fastened and protected from physical damage. Keep valve caps on when not in use. Due to its highly volatile and gaseous nature, storage areas must have appropriate gas detection and ventilation systems.

Specification

Item	Specification
Appearance	Colorless Gas
Assay (PH₃)	≥ 99.9%
Oxygen (O₂)	≤ 10 ppm
Nitrogen (N₂)	≤ 100 ppm
Carbon Dioxide (CO₂)	≤ 5 ppm
Water (H₂O)	≤ 3 ppm
Total Hydrocarbons (as CH₄)	≤ 10 ppm
Particulate Matter	≤ 0.1 micron filter tested

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.