Name | pentachlorophenol sodium salt |
Synonyms | Dowicide G PCP Sodium Salt pentachlorophenol Sodium Pentachlorophenate sodium pentachlorophenolate sodium pentachlorophenonate pentachlorophenol sodium salt |
CAS | 131-52-2 |
EINECS | 205-025-2 |
InChI | InChI=1/C6HCl5O.Na/c7-1-2(8)4(10)6(12)5(11)3(1)9;/h12H;/q;+1 |
Molecular Formula | C6HCl5NaO |
Molar Mass | 289.326 |
Melting Point | >300℃ |
Physical and Chemical Properties | Pure white needle-like or scale-like crystals, industrial products for gray or light red scale-like crystals. Irritating odor. |
Use | It is a non-selective contact herbicide, pre-harvest defoliant, wood preservative, and can also be used to kill the intermediate host of schistosomiasis, and to control schistosomiasis |
Hazard Symbols | T+ - Very toxic N - Dangerous for the environment |
Risk Codes | R26 - Very Toxic by inhalation R36/37/38 - Irritating to eyes, respiratory system and skin. R40 - Limited evidence of a carcinogenic effect R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
Safety Description | S22 - Do not breathe dust. S28 - After contact with skin, wash immediately with plenty of soap-suds. S36/37 - Wear suitable protective clothing and gloves. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S52 - Not recommended for interior use on large surface areas. S60 - This material and its container must be disposed of as hazardous waste. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
UN IDs | UN 2567 |
Raw Materials | Phenol |
white or yellowish needle-like crystals with special odor. Melting point 190 °c. Soluble in water, ethanol, methanol, acetone, micro-soluble carbon tetrachloride and carbon disulfide. The aqueous solution is weakly alkaline. When acidified by acid to pH 6.8~6.6, all of them are precipitated as pentachlorophenol, which is easy to decompose when irradiated by sunlight, non-volatile at room temperature. Rapid decomposition under light, the removal of hydrogen chloride, color darkened. By high heat decomposition, emission of corrosive, irritating smoke.
In trichlorobenzene chlorine gas chlorination, hexachlorobenzene, and a certain concentration of caustic soda solution heating, hydrolysis at a certain temperature and pressure, the reaction product after cooling, crystallization, filtration and drying is sufficient.
bactericide. The concentration of sodium pentachlorophenol is generally 50mg/L, which is not suitable for sharing with cationic agents (such as quaternary ammonium salts, etc.), but it can significantly reduce its dosage when used in combination with some anionic surfactants, and improve the sterilization effect.
rat oral LD50: 210mg/kg; Rabbit percutaneous LD50: 100mg/kg; Rat inhalation LC50: 152mg/m3; Mouse Inhalation LCso:229mg/m3. It has strong irritation, moderate toxicity to humans and livestock, and strong toxicity to fish. The lethal concentration of fish and shrimp is LCso 0.3~0. 6mg/L. Store in a cool, ventilated warehouse. Keep away from fire and heat source. Protection from direct sunlight. Keep the container sealed. It should be stored separately from oxidant and edible chemical raw materials.