Dichloromethane(CAS#75-09-2)
| Hazard Symbols | Xn – Harmful |
| Risk Codes | R40 – Limited evidence of a carcinogenic effect |
| Safety Description | S23 – Do not breathe vapour. S24/25 – Avoid contact with skin and eyes. S36/37 – Wear suitable protective clothing and gloves. |
| UN IDs | UN 1593/1912 |
Dichloromethane(CAS#75-09-2)
Use
This product is not only used for organic synthesis, but also widely used as cellulose acetate film, cellulose triacetate spinning, petroleum dewaxing, aerosol and antibiotics, vitamins, steroids in the production of solvents, and the metal surface paint layer cleaning degreasing and stripping agent. In addition, it is also used for grain fumigation and refrigeration of low-pressure refrigerators and air conditioners. It is used as an auxiliary blowing agent in the production of Polyether urethane foams and as a blowing agent for extruded polysulfone foams.
Safety
the toxicity is very small, and the consciousness is faster after poisoning, so it can be used as an anesthetic. Irritant to skin and mucous membrane. Young adult rats oral ld501.6ml/kg. The maximum allowable concentration in air is 500 × 10-6. The operation should wear a gas mask, found immediately after poisoning from the scene, symptomatic treatmentwith galvanized iron drum closed packaging, 250kg per barrel, train tank car, car can be transported. Should be stored in the cold dark dry, well-ventilated place, pay attention to moisture.
