... water solution is slightly alkaline, relative density at 1.63, melting point at 34.6 . Application: Used as a fire-prevention agent ... , timber, and paper, also as water softening agent for boiler, food additive, buffering agent ,solder, tanning agent, etc. Packing : 25kgs net paper ... warehouse instead of in the open air, kept away from water, moisture and sunlight during transport, handled with care, ...