Skip to content 
CAS 1079-66-9 Chlorodiphenylphosphine
Overview
Chlorodiphenylphosphine manufacturer (diphenylphosphine chloride; Ph₂PCl; CAS 1079-66-9; C₁₂H₁₀PCl, ~220.64 g/mol) is a reactive P(III) chlorophosphine widely used to build tertiary phosphines (Ph₂PR), phosphonium salts, and P-containing ligands/intermediates for homogeneous catalysis and fine-chemical synthesis.Supplied as a colorless to pale-yellow liquid/low-melting solid of high purity, it undergoes clean nucleophilic substitution with organometallics (Grignard/organolithium), amines, and alcohols to form P–C/P–N/P–O bonds, enabling stepwise mono- or di-substitution and scalable route development.Stock China Factory Supply
Product Description
CAS 1079-66-9 Chlorodiphenylphosphine
Chlorodiphenylphosphine (Ph₂PCl, CAS 1079-66-9) is an aryl P(III) chlorophosphine with a highly electrophilic P–Cl center, enabling clean nucleophilic substitutions with R-MgX/R-Li, amines, or alcohols to form P–C / P–N / P–O bonds for tertiary phosphines (Ph₂PR), phosphonium salts, and other phosphorus ligands/intermediates. Supplied as a colorless to pale-yellow liquid/low-melting solid, it is soluble in toluene, THF, CH₂Cl₂ (insoluble in water). Moisture-sensitive and corrosive, it hydrolyzes releasing HCl and oxidizes in air to diphenylphosphine oxide—store and handle dry, under inert gas, using compatible equipment and following the SDS. COA/TDS available; packaging from lab packs to bulk.
Chlorodiphenylphosphine (Ph2PCl) — Product Specification
CAS: 1079-66-9 | Formula: C12H10PCl | Molecular weight: ~220.64 g/mol | Synonyms: Diphenylphosphine chloride; Ph2PCl
Identity & Form
| Product form | Colorless to pale-yellow liquid / low-melting solid |
|---|---|
| Solubility | Soluble in toluene, THF, CH2Cl2; insoluble in water |
| Odor | Pungent; liberates HCl upon hydrolysis |
| Documents | COA · TDS · SDS · DG documents |
Typical Specification (example)
| Assay (GC) | ≥ 98.0% |
|---|---|
| Oxidized species (Ph2P(O)Cl) | ≤ 0.30% |
| Free acidity (as HCl) | ≤ 0.50% |
| Water (Karl Fischer) | ≤ 0.10% |
| Color (APHA) | ≤ 50 |
| Appearance | Clear, colorless to pale-yellow; free from visible impurities |
Applications & Handling
| Main uses | Precursor to tertiary phosphines (Ph2PR), phosphonium salts, and other P-containing ligands/intermediates via nucleophilic substitution (P–Cl → P–C/P–N/P–O) |
|---|---|
| Handling | Moisture-sensitive, corrosive; HCl-evolving on hydrolysis. Operate in dry, inert systems with appropriate base scavenger and HCl scrubbing; avoid protic media and oxidants. |
| Storage | Tightly closed, cool, dry, under inert atmosphere; use compatible (e.g., glass-lined) equipment. |
Packaging & Logistics
| Packaging | 1 kg / 5 kg / 25 kg bottles; larger drums on request (inner liner provided) |
|---|---|
| Ports | Qingdao · Shanghai · Tianjin |
| To quote (please specify) | Purity grade, pack size, destination country/port, and required documents |
© Shandong Yinglang Chemical CO.,LTD · Information for B2B technical marketing only.
PACKING AND DELIVERY
Packing and delivery
We offer secure and compliant packaging for a wide range of chemical products, from laboratory bottles (100 mL, 250 mL, 500 mL) to customized bulk containers. All shipments follow international hazardous goods standards and include complete documentation such as COA and SDS. With reliable global logistics partners, we ensure safe, fast, and efficient delivery by air, sea, or land according to customer needs.