Item	Specification
Appearance	White Powder Form				White Needle Form			Clear, Light yellow liquid
								General		For Plasterboard
Active Ingredient(%)	≥92	≥93		≥95	≥92	≥93	≥95	≥31		≥32	≥35
Petroleum Ether Soluble Substances (%)	≤1.5	≤1.5		≤1.5	≤1.5	≤1.5	≤1.5	≤0.3		≤1.5	≤1.5
Inorganic Salts (NaCl+Na2SO4)(%)	≤5.5	≤4.5		≤2.5	≤4.5	≤3.5	≤2.0	≤0.5		≤2.0	≤2.0
Water (%)	≤2.5	≤2.5		≤2.5	≤3.5	≤3.5	≤3.0	--		--	--
PH (1% aq. solution)	7.5-9.5	7.5-9.5		7.5-9.5	7.5-9.5	7.5-9.5	7.5-9.5	7.5-9.5		7.5-9.5	7.5-9.5
Whiteness (WG)	≥90	≥90		≥90	≥90	≥90	≥90	--		--	--
Hazen Color	--	--		--	--	--	--	≤70		≤50	≤50