Product Appearance:
Colorless liquid
Main Index:
Industrial grade: DMC ≥ 99.9, methanol ≤ 200PPM, water ≤ 200PPM Electronic grade: DMC ≥ 99.99, methanol ≤ 20PPM, water ≤ 30PPM
Main Use:
It is mainly used for the preparation of polycarbonate, developer, electrolyte and pesticide herbicides. It is also used in the organic synthesis pharmaceutical industry. It can also be used for the preparation of amino oxazolidinone, ciprofloxacin, β-ketocarboxylic acid ester pharmaceutical intermediates, etc. Can also be used as gasoline, diesel additives, refrigerator oil and solvents.
Operation, Disposal, Storage and Transportation:
Closed operation, full ventilation. Operators must undergo special training and strictly abide by the operating procedures. It is recommended that operators wear self-priming filtering gas masks (half masks), wear chemical safety protection glasses, wear anti-static work clothes, and wear rubber oil-resistant gloves. Keep away from fire and heat sources. Smoking is strictly prohibited in the workplace. Use explosion-proof ventilation systems and equipment to prevent steam leakage into the air in the workplace. Avoid contact with oxidants, reducing agents, strong acids, and strong alkalis. Pay attention to the flow rate not to be too high during filling, and there is a grounding device to prevent static accumulation. Light loading and light unloading during handling to prevent damage to packaging and containers; equipped with the corresponding variety and quantity of fire fighting equipment and leakage emergency treatment equipment. Emergency rescue or evacuation, should wear air respirator or oxygen respirator. An empty container may have harmful substances.
Store in cool, ventilated warehouse, away from fire and heat source. The warehouse temperature should not exceed 30 ℃. Keep container sealed. It should be separated from oxidizing agents, reducing agents, strong acids, strong alkalis, edible chemicals, etc., and avoid mixing storage. Explosion-proof lighting and ventilation facilities shall be adopted. It is forbidden to use mechanical equipment and tools that are easy to produce sparks. The storage area shall be equipped with spill emergency treatment facilities and suitable containment materials.
Quality Index:
pH: neutral. Melting point/freezing point (℃):3.
Boiling point (℃):90. Flash point (℃):17.
Upper explosion limit%(V/V):20.5. Lower explosive limit%(V/V):3.1.
Saturated vapor pressure (KPa):7.38(25 ℃). Vapor density (air = 1):3.1.
Relative density (water = 1):1.07. Solubility: insoluble in water, soluble in alcohol ether and other organic solvents.
Octanol/water partition coefficient: 0.23. Self-ignition temperature (℃):458.
Decomposition temperature (C): no data. Odor threshold: no data available.
Evaporation rate: no data available. Flammability: Highly flammable.
Critical temperature (℃):275. Critical pressure (MPa): 4.5.