【CAS】75-09-2
Alias: DCM
Molecular formula: CH2كل2 Relative molecular mass: 84.93
الصيغة التركيبية:
1- خاصية المنتج
Dichloromethane is a compound formed by replacing the two hydrogen atoms in a methane molecule with chlorine. It is a colorless, transparent, heavier-than-water liquid with an ether-like odor and a sweet taste. It does not burn. Dichloromethane is slightly soluble in water and is miscible with most commonly used organic solvents. It can also be mixed in any proportion with other chlorine-containing solvents, ethyl ether, ethanol, and N,N-dimethylformamide.
2.
| المعلمة | المواصفات |
| المظهر | Clear, colorless liquid, free of particles |
| النقاء (GC، % بالوزن) | ≥ 99.9% |
| المحتوى المائي | ≤ 0.01% (100 جزء في المليون) |
| Acidity (as HCl) | ≤ 0.0005% (5 جزء في المليون) |
| الكثافة (20 درجة مئوية، جم/سم مكعب) | 1.322 – 1.327 |
| معامل الانكسار (nD²⁰) | 1.423 – 1.425 |
| Stabilizer (Amylene) | 50 – 200 ppm (if stabilized) |
3- نطاق التطبيق والاستخدام
Used for grain fumigation and low-pressure refrigeration units as well as air conditioning devices.
Used as a solvent, an extractant, and a mutagen.
Used in the electronics industry. It is commonly used as a cleaning and oil-removing agent.
Used as a local anesthetic for dentistry, a refrigerant, a fire extinguishing agent, and a cleaning and degreasing agent for metal surface paint layers, as well as a descaling and demolding agent.
Used as an intermediate in organic synthesis.
4- العبوة والتخزين
Packaged in galvanized iron drums in a sealed manner, each drum contains 250kg. It should be stored in a cool, dark, dry and well-ventilated place. Pay attention to moisture prevention.
