Zinc Borate Flame Retardant

We are offering zinc borate，molecular weight: 434.75. It is a kind of powder with non-toxic, tasteless, no smell， relative density : 2.67，melt point: 980oc，insoluble in ethanol, butanol and acetone，easily soluble in hydrochloric acid, sulfuric acid and dimethyl。refractivity: 1.58~1.59，hard to dissolve in cold water，but can dissolve slowly in hot water and turn into 1% solution， stable under 300oc，once over 300oc will release crystal water which can absorb heat and dilute oxygen in the air.