... 0.9g/cm3, Melting Point: 622degree, free soluble in water, aqueous solution appears acid, it is a kind of ... agent. Use: Used as main detergent builder: As soft water agent, as detergent building foaning agent, as emulsifier of oils ... well drilling muds, sequestration in cotton boiling, bath water softening, red and black water control, cathoclic corrosion in hibiter. 94% sodium tripolyphosphate ...