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硫磺在工业上的应用极为广泛,是我国大宗出口商品之一。天然硫磺在自然界中存在較少,我国生产的硫磺大多由黃鉄矿制取,一般含有硒、砷、碲等杂貭,其含量多少随产地而不同,其中硒与砷十分有害,因此含量越低越好,以不超过十万分之几为合格。我国的硫磺产区有山西、四川、河南、湖北、湖南、江西等地,其中以山西、四川所产的占較大此重,且都符合出口規格。目前上海口岸出口的硫磺規格一般含硫99.5%、砷0.02%和硒0.002%。
Sulfur is widely used in industry and is one of the bulk export commodities in our country. Natural sulfur is rare in nature. Most of the sulfur produced in our country is made from yellow ore. Generally, it contains impurities such as selenium, arsenic and tellurium. The content of sulfur varies with the place of production. Among them, selenium and arsenic are very harmful. Therefore, The lower the better, with no more than one hundred thousandths of a pass. China’s sulfur producing areas are Shanxi, Sichuan, Henan, Hubei, Hunan, Jiangxi and other places, of which Shanxi, Sichuan accounted for a larger weight, and are in line with export specifications. At present, the sulfur content of Shanghai port exports is 99.5% sulfur, 0.02% arsenic and 0.002% selenium.