potassium carbonate

Product Description

Potassium carbonate *9% Molecular formula: K2CO3 Molecular weight: **8.*1 Properties: it is a monoclinic crystal, white powder, granular crystal or prill. The relative density is 2.**8 and the melting point is at **1 degree C .It is easily soluble in water forming a slightly alkaline solution. It is 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. Spec. Industrial Grade Food Grade unit fine grade technical grade first grade regular Grade unit standard Purity(as K2CO3 ) % ≥ *9.0 *9.0 *8.5 *6.0 % ≥ *9.0 Chloride(as KCl % ≤ 0.*1 0.*3 0.*0 0.*0 % ≤ 0.*1 Sulphate(as K2SO4) % ≤ 0.*1 0.*4 0.*0 0.*5 % ≤ 0.*1 Iron % ≤ 0.**1 0.**1 0.**3 0.**0 % ≤ 0.**1 nsoluble matter in water % ≤ 0.*2 0.*4 0.*5 0.*0 % ≤ 0.*2 Burnt loss % ≤ 0.6 0.8 1.*0 1.*0 % ≤ 0.6 Arsenic % ≤ 0.***3 Heavy Metal(as Pb) % ≤ 0.**2 standard GB/T ********0 HG******3 Packing: *5kg or *0kg/woven bag, 1**0fcl can load *2mt Handling and Storage: Store in dry and ventilated house away from moisture. Don't store in goods yards or expose to the air. Protect the material from rain when loading and unloading. Be sure to keep the package dry and free from contaminant. Avoid handling and transporting together with acid substances. In the event of a fire, use water as extinguishing agent. Usages: it is used as raw materials in manufacturing electro tube, TV kinescope, computer display. It is applied in optical glass improving clarity, strength and refractive index. It is also applied in electrode avoiding electric arc breaking-off during welding. It is used to produce food additives like potassium sorbate, monopotassium phosphate, etc. Potas