Dragon Industry & Trade Co., Ltd. Shandong, producing 100 million H-foaming light cream colored powder. Melting point 207 ℃, decomposition temperature 210-220 ℃, decomposition of 190-200 ℃ in air. Soluble in dimethylformamide, acetone, methyl ethyl ketone, slightly soluble in water, ethanol, slightly soluble in chloroform, practically insoluble in ether. Flammable, contact with the acid or acid fog can quickly burst into flames. The product is widely used as one of the blowing agent is mainly used in the manufacture sponge rubber, in plastics used for PVC. The thermal decomposition product into nitrogen Erzhi hole, gas evolution, it is not foam and high efficiency. The use of salicylic acid, adipic acid, phthalic acid and other organic acids or urea to make foam additive, can reduce the decomposition temperature, adjust the 90-130 ℃ range. Are now in short supply.