应用
Sodium chloride is widely used as a food additive, and a preservative. It is employed in the Chloralkali process for producing chlorine and sodium hydroxide, in the Solvay process for producing sodium carbonate and calcium chloride, in the Mannheim process and in the Hargreaves process for producing sodium sulfate and hydrochloric acid. It is used in the manufacture of sodium chlorate, water softening and de-icing of roadways. Further it is used in several industries like pharmaceutical, textile, dyeing, rubber food and agriculture. It is used in the processing of steel, copper, vanadium, and other metals.
Grade Specifications
Maximum level of impurities: Insoluble matter 0.005%, pH of a 5% solution 5.0-9.0 at 25?, I 0.002%, Br 0.01%, Chlorate and nitrate (as NO3) 0.003%, PO4 5ppm, SO4 0.004%, Ba P.T., Ca 0.002%, Mg 0.001%, Heavy Metals (as Pb) 5ppm, Fe 2ppm, K 0.005%
备注
It is sensitive to moisture in air. It should be protected in an air tight container.
基本信息
MDL
MFCD00003477
EINECS
231-598-3
分子式
NaCl
分子量
58.44
熔点
801°
沸点
1413°
密度
2.165
折射率
1.5442
灵敏度
Hygroscopic. Store under Nitrogen. Ambient temperatures.
形态
Crystalline
溶解性
Soluble in water, glycerol. Very slightly soluble in alcoholFreely soluble in water. Slightly soluble in alcohol and ammonia.
Merck
14,8599
GHS危害和防范说明
Hazard Statements
H303
May be harmful if swallowed.
安全信息
RTECS
VZ4725000
TSCA
是
