Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
Product Overview
Chlorodiphenylphosphine (CDPP, CAS 1079-66-9) is a highly reactive organophosphorus intermediate. It is a colorless to pale yellow transparent liquid, fuming in moist air, with a pungent odor. Featuring a reactive P-Cl bond, it serves as a key building block for synthesizing phosphine ligands, flame retardants, and UV stabilizers. Manufactured under anhydrous conditions with strict purification, it offers high purity, low moisture content, and stable batch quality for fine chemical and pharmaceutical synthesis.
Product Features
- High Reactivity: Reacts readily with alcohols, amines, and water; ideal for introducing diphenylphosphino groups。
- Anhydrous Grade: Strictly controlled moisture content (<500 ppm), suitable for water-sensitive reactions。
- High Purity: GC ≥97.0% / ≥98.0%, low free chlorine and impurities。
- Versatile Intermediate: Critical precursor for phosphine ligands, TPO, and polymer additives。
- Corrosive & Moisture-Sensitive: Requires strict exclusion of air and water during handling and storage。
Physical & Chemical Properties
Physical Properties
- Appearance: Colorless to pale yellow transparent liquid
- Odor: Pungent, fumes in moist air
- Density: 1.229 g/mL at 25 °C
- Melting Point: 14–16 °C
- Boiling Point: 320 °C (760 mmHg)
- Flash Point: 138 °C
- Refractive Index: n20/D 1.636
- Viscosity: ~15 mPa.s (25 °C)
- Solubility: Reacts violently with water; soluble in organic solvents like toluene, dichloromethane
- Vapor Pressure: 1.3 hPa (20 °C)
Chemical Properties
- Chemical Stability: Stable under inert atmosphere (N2/Ar); decomposes in air/moisture to form HCl and phosphine oxides。
- Reactivity: Undergoes nucleophilic substitution with alcohols/amines; reacts with water to release toxic and flammable phosphine gas。
- Thermal Stability: Decomposes above 250 °C, releasing toxic phosphorus oxides。
- Incompatibility: Avoid contact with water, strong oxidants, strong bases, and alcohols。
Applications
- Organic Synthesis: Key reagent for preparing phosphine ligands (e.g., PPh3 derivatives) used in cross-coupling and hydrogenation catalysts。
- Polymer Additives: Precursor for organic phosphorus flame retardants, UV stabilizers, and antioxidants for plastics and coatings。
- Pharmaceutical & Agrochemicals: Intermediate for and fungicides, enhancing bioactivity and stability。
- Photoinitiators: Critical raw material for manufacturing TPO (2,4,6-trimethylbenzoyl-diphenylphosphine oxide), a widely used UV photoinitiator。
- Electronics: Used in synthesizing electronic-grade phosphorus additives for lithium battery electrolytes and photoresists。
Storage & Transportation Instructions
Storage Conditions: Store in a cool, dry, well-ventilated warehouse (10–25 °C). Keep container tightly sealed under nitrogen/argon atmosphere to prevent moisture absorption and air degradation. Separate from water, oxidants, and bases。
Transportation Requirements: Transport as corrosive and moisture-sensitive hazardous chemical (UN 2920). Avoid violent collision, extrusion, and rain contact. Do not transport with water, oxidants, acids, or food materials。
Operation Notes: Wear chemical-resistant gloves, safety goggles, and respiratory mask. Work in a fume hood with inert gas protection. Avoid inhalation of vapor and direct contact with skin/eyes. Never add water to this product。
Regulatory Information
This product is a hazardous chemical, compliant with global safety standards (e.g., REACH, GHS). Domestic sales and cross-border export must follow local regulations for corrosive and organophosphorus chemicals. Transactions limited to qualified industrial manufacturers and research institutions。
Full Product Parameter Table
| Item | Specification & Details |
| Product Name | Chlorodiphenylphosphine |
| CAS NO. | 1079-66-9 |
| IUPAC Name | Chlorodiphenylphosphine |
| Synonyms | CDPP; Diphenylchlorophosphine; (C6H5)2PCl |
| Molecular Formula | C12H10ClP |
| Molecular Weight | 220.63 |
| EINECS Number | 214-093-2 |
| UN Number | UN 2920 |
| Appearance | Colorless to pale yellow transparent liquid |
| Purity | GC ≥97.0% / ≥98.0% (customizable) |
| Density | 1.229 g/mL at 25 °C |
| Melting Point | 14–16 °C |
| Boiling Point | 320 °C (760 mmHg) |
| Flash Point | 138 °C |
| Refractive Index | n20/D 1.636 |
| Vapor Pressure | 1.3 hPa (20 °C) |
| Solubility | Reacts violently with water; soluble in organic solvents |
| HS Code | 2931399090 |
| Storage Temperature | 10–25 °C, sealed under N2/Ar, dry & dark |
| Packing Specification | 25kg/steel drum (inner PTFE liner, nitrogen-sealed) |
| Grade Standard | Industrial Grade / Synthesis Grade |
| Application Scope | Phosphine ligand synthesis, flame retardants, photoinitiator TPO, pharmaceutical intermediates |
| Validity Period | 12 Months under specified storage conditions |
