Description
| ITEMS | STANDARDs |
| Content % | 98.0 MIN |
| Water insoluble matte r% | 0.2 MAX |
| As % | 0.0003 MAX |
| Pb % | 0.0004 MAX |
| Heavy metals(as Pb )% | 0.001 MAX |
| F % | 0.005 MAX |
| Loss of dryness % | 5.0 MAX |
Properties White or colorless crystalline free flowing solid, efflorescent in air, easily soluble in water, but insoluble in alcohol, its water solution is slightly alkaline, relative density at 1.63, melting point at 34.6℃ Uses Used as a fire-prevention agent for fabric, timber, and paper, also as water softening agent for boiler, food additive, buffering agent, solder, tanning agent, etc.
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