Potassium Sulphate

We are offering potassium sulphate,
potassium sulphate
product name: potassium sulphate
molecular formula：k2so4
molecular weight：174.24
cas no: 7778-80-5
hs code: 31043000
property: potassium sulphate is colorless or white hexagonal or
rhombic crystal or granular powder. The relative density is 2.662.
the inversion point is at 588°c , the melting point is at 1069°c
and the boiling point is at 1689°c .it is soluble in water(12g/100ml water at 25°c ;24.1g/100ml water at 100°c) and insoluble in alcohol, acetone and carbon bisulfide. It tastes bitter and salty.
inspection ltem unit fine grade feed grade first grade
assay（k2so4） % ≧ 99.0 98.5 98.5
insoluble matter in water % ≦ 0.3 —— 0.5
chloride(as cl -) % ≦ 0.03 —— 0.05
calcium % ≦ 0.03 0.03 0.03
heavy metal (as pb) % ≦ 0.001 0.002 0.002
iron % ≦ 0.005 0.005 0.02
ph(50g/l,25℃) - 6.0~8.0 6.0~8.0 6.0~8.0
size（120 mesh） 120mesh 120mesh 120mesh
appearance white crystal without any impurity visible to the naked eye
packing: plastic woven bag inner with plastic bag in 25/40/50kg net.
handling and storage: store in ventilated and dry house with the package sealed away from moisture. Prevent the material from rain in case to be dissolved and lost during transportation.