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1 Description Fine crystalline white powder Fine crystalline white powder 2 Solubility Soluble in Alcohols Soluble in Alcohols 3 Assay (Total Alkalinity) 99.00 % Min. 99.00 % Min. 4 NaOH & Na2CO3 as H2O (Free Alkali) 0.50 % Max. 0.30 % Max. 5 NaOH & Na2CO3 as NaOH (Free Alkali) 1.10 % Max. 0.66 % Max.