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Potassium sulfate CAS 7778-80-5,also known as salt of Lemery and arcanite, is a colorless crystalline solid that melts at 1072°C(1960 OF). It is soluble in water,but insoluble in alcohol. Potassium sulfate is used in manufacturing glass, aluminum, fertilizers, and in medicine.
Specification
| Potassium Sulfate | Military grade | Gunpowder grade | Feed grade | Technical grade |
| Assay /% | ≥99.0 | ≥99.0 | ≥98.5 | ≥98.5 |
| Water insoluble/% | ≤0.01 | ≤0.02 | ||
| Arsenic (As)% | ≤0.0002 | |||
| PH(50g/L,25℃) | 6.0-8.0 | 6.0-8.0 | ||
| Chlorides(Cl), % | ≤0.001 | ≤0.002 | ||
| Nitrogen(N)% | ||||
| Calcium (Ca)% | ≤0.02 | ≤0.03 | ||
| Heavy metal(as Pb) % | ≤0.001 | ≤0.001 | ≤0.002 | ≤0.002 |
| Iron (Fe)% | ≤0.0005 | |||
| Sodium (Na)% | ≤0.1 | |||
| Magnesium (Mg)% | ≤0.005 | ≤0.01 | ||
| Fineness(120 meshes sieve) | ≤5 | 40 meshes sieving rate | ≥95 |
Application
1.The dominant use of potassium sulfate is as a fertilizer. K2SO4 does not contain chloride, which can be harmful to some crops. Potassium sulfate is preferred for these crops, which include tobacco and some fruits and vegetables. Crops that are less sensitive may still require potassium sulfate for optimal growth if the soil accumulates chloride from irrigation water.
2.it also used occasionally in the manufacture of glass. Potassium sulfate is also used as a flash reducer in artillery propellant charges.
3.It is sometimes used as an alternative blast media similar to soda in soda blasting as it is harder and similarly water-soluble.
4. Potassium Sulfate is a flavoring agent that occurs naturally, consisting of colorless or white crystals or crystalline powder having a bitter, saline taste. it is prepared by the neutralization of sulfuric acid with potassium hydroxide or potassium carbonate.
Packing：
25kg/bag
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