应用
In drying organic liquids, in Kjeldahl nitrogen determination, in manufacturing of glass. Sodium sulfate anhydrous is used primarily for drying non-aqueous solvents by removing traces of water. It is used as a fining agent for molten glass, levelling agent in textile processing, and filler in detergents. It is also used in Kraft process for paper pulping, defrosting windows, manufacture of starch, glass, and soap.

Grade Specifications
Maximum level of impurities: Insoluble matter 0.01%, Loss on ignition 0.5%, Cl 0.001%, N 5ppm, PO₄ 0.001%, Heavy Metals (as Pb) 5ppm, Fe 0.001%, Ca 0.01%, Mg 0.005%, K 0.01%, pH of a 5% solution 5.2-9.2 at 25??

备注
Anhydrous sodium sulfate is hygroscopic in nature, and absorbs moisture converting to the hydrated form. The hydrated form on heating gets converted back to anhydrous form.

基本信息

MDL
MFCD00003504

EINECS
231-820-9

分子式
Na₂SO₄

分子量
142.04

熔点
884°

密度
2.680

折射率
1.484

灵敏度
Hygroscopic. Store under Nitrogen. Ambient temperatures.

形态
Powder

溶解性
Soluble in water. Insoluble in alcoholSoluble in water, glycerol and hydrogen iodide. Insoluble in ethanol and many organic solvents.

Merck
14,8680

安全信息

RTECS
WE1650000

TSCA
是