Ammonium sulfate 7783-20-2


Product Deail


Ammonium sulfate

Another name】ammonium sulfate

Description】Colorless crystal or translucent powder, odorless. The relative density is 1.769. When heated to 100 degrees Celsius, it begins to decompose into ammonia and ammonium bisulfate, soluble in water but insoluble in ethanol and acetone.

Table 1

Test item

AR

CP

Other

Assay[(NH4)2SO4] /%

≥99.0

≥99.0

Custom

pH(50g/L,25℃)

4.8-6.0

4.8-6.0

Clarity of solution Passes test

Passes test

Water insoluble /%

≤0.002

≤0.01

Residue on Ignition /%

≤0.01

≤0.05

Chloride(Cl) /%

≤0.000 5

≤0.001

Nitrate(NO3) /%

≤0.001

≤0.005

Phosphate(PO4) /%

≤0.000 5

≤0.002

Arsenic(As) /%

≤0.000 02

≤0.000 2

Calcium(Ca) /%

≤0.005

-

Iron(Fe) /%

≤0.000 2

≤0.000 5

Heavy metal (as Pb) /%

≤0.000 5

≤0.002

Table 2

Test item

High purity

Other

Assay[(NH4)2SO4] /%

99.0-100.5

Custom

Residue on Ignition /%

≤0.25

Selenium(Se) /ppm

≤30

Lead(Pb) /ppm

≤3

Arsenic(As) /ppm

≤3

Use】For high-end nitrogen fertilizer; Manufacturing refractory materials; Adding electroplating solution can increase the conductivity; It is also the catalyst of food sauce color; Nitrogen source for yeast culture in fresh yeast production; Acid dye dyeing aid; Leather deashing agent; Used for beer brewing and battery production; Mining rare earths; Used in protein purification process; Pharmaceutical excipients; Analytical reagent; Precipitating agent; Masking agent. Used as a supporting electrolyte in electrochemical analysis; It is also used in the preparation of microbial culture medium and ammonium salt