碳酸钾

Formulae K2CO3 Molecular weight 138.19 CAS 584-08-7 Properties Monoclinic crystal, white powder, granular crystal or prill Melting point: 891 °C Easily soluble in water forming a slightly alkaline solution. Insoluble in alcohol and ether. It has strong hygroscopicity. It easily cakes and turns into Potassium Bicarbonate through absorbing carbon dioxide when exposed to the air for a long time. Uses Used as raw materials in manufacturing electro tube, TV kinescope, computer display. Applied in optical glass improving clarity, strength and refractive index,also applied in electrode avoiding electric arc breaking-off during welding, also used in agriculture.Packing In 25/50/500/1000kg PP/PE bag or demanding of customer Storage Store in dry and ventilated house away from moisture. Don't store in goods yards or expose to the air. Inspection Items UnitFine GradeTechnical GradeFirst GradeRegular GradePurity% ≥99.099.098.596.0Chloride(As KCl)% ≤0.010.030.100.20Sulphate(As K2SO4)% ≤0.010.040.100.15Iron% ≤0.0010.0010.0030.010Water-Insolubles% ≤0.020.040.050.10Ash Content% ≤0.60.81.001.00