boracic acid
9.In hydrothermal conditions, the experimentation take zinc sulfate, borax, boracic acid as material and moles proportion of material is l:0.65(the former is Zinc sulfate and the later is solid reactant) liquid-solid moles ration is 6.5:1 (the former is water and the later is solid reactant),temperature is 140-160"C, pressure is 0.3~0.5MPa and obtain ultrafine Zinc Borate.
10.Different kind and concentration of synergistic agents were added into multi-component mix-IFR. The sequence of synergistic catalytic flame-retarded effects(an increase in LOI of flame-retarded materials per unit mass of synergitic agent) is as follow: dextrine(DTR)>sodium molybdate(SMD)>cellulose methylate(CM)>ZnO>boracic acid(BA).

