... specific gravity:2.484(20°C),easily soluble in water, insoluble in organic solvents.[Technical specification]: No.Index ... based on As) %≤ 0.00037Fluoride(based on F) %≤ 0.0038Heavy metal(based on Pb) %≤ 0.0019Water insoluble %≤0.050.06[Use]: ... printing dyeing, petrochemical, leather and building material etc. as water softener, flotation agent,dispersant, high temperature binding agent and additive ...