铵氯化、技术级的

AMMONIUM CHLORIDE, TECHNICAL GRADE Chemical name : Ammonium chloride Synonyms : Sal ammoniac Formula: NH4CL Molecular Weight.: 53.49 according to the International Atomic Weight (1987) GB/T19001-2000 idt ISO9001:2000 Standard Certificate number: 01007Q10248R3M dated 10.07.2007 Technical grade ammonium chloride covered by this specification will meet the requirements of the National Standard of GB/2946-2008 as follows: Item Index NH4CL(on dry base) % min. 99.5 Moisture % max. 0.50 Residue on ignition % max. 0.40 Fe % max. 0.0007 Pb % max. 0.0005 Sulfates as SO4= % max. 0.02 PH value (200g/L, 25°C) 4.0-5.8 With anti-caking agent Properties : White powdered crystals. Its specific gravity is 1.532(17°C). It Is readily hygroscopic and forms cakes in the air. Soluble in water and the solubility goes up as the temperature increases. It sublimates at 340°C. It is strong corrosive. Uses : It is primarily used in dry cell, electrical plating, welding, tanning, dyeing and precision casting industries. Packing : In 25kgs net in PP/PE bags. Cautions : Keep away from moisture, water. Do not put together with alkaline substances in process of storage and transportation.