Ammonium hydrogen carbonate, molecular formula is NH4HCO3. The substance is white granule crystal. It smells ammonia gas. It’s soluble in water. Its water solution is alkaline, which PH value is 8.2-8.4. At normal temperature and dry conditions, it is basically stable. It is widely used in agriculture as basic fertilizer for all kinds of crops. The product standard is GB3559-2001 and we carry out first-rate goods standard of the standard in our company.