据国家化工部门的信息，目前国内市场上供求关系紧张的五种无机化工产品是硼酸、硼砂、氟化钠、烧碱，过碳酸钠。硼酸国内产量下降，进口五减少，库存总量减少。全国需求量为3万吨，年产量仅为2．2万吨。硼砂由于生产调砂的原料价格居高不下，运输费提高，导致生产成本增加，外 According to the information from the national chemical department, the five inorganic chemical products that currently have a tight supply-demand relationship in the domestic market are boric acid, borax, sodium fluoride, caustic soda and sodium percarbonate. Domestic production of boric acid declined, imports decreased and inventories decreased. The demand for the country is 30,000 tons and the annual output is only 22,000 tons. Borax due to the high cost of raw materials for sand production, transportation costs increase, resulting in increased production costs, outside