purchase of heavy chemicals . , purchase of heavy chemicals: , blaching powder make tata, modi, dcw, shriram 33% available chlorine , phosphoric acid h3p04 = 85%, p2o5 = 61.5%, ph - 1.5 (0.1 nag-solution), sp. gravity - 1.60 - 1.68, quality - food grade (make-gacl/ nirma/birla/vietnam,chemical center] , soda ash. purity as na2co3% by mass 95 - 98% (make nki organics, ubc, poly chem ind,chemical center] , scale softner scale softner residual mass (at 105°c) % by mass 75 - 85, ph - 10 - 11.5, bulk density 9/cm3 - 0.95 - 1.15 (make nki organics, ubc, poly chem ind. chemical center, chemcon , soda caustic dcm shri ram, gacl purity:- naoh 95% by mass (other specifications pu isi, packing in 50 kg, hdpe bag