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工业盐是一种用途很广的化工基础原料,被称为

2018-01-22

工业盐是一种用途很广的化工基础原料,被称为“化学工业之母”。用于肥皂制造、玻璃生产、日用化工、石油化工等,还可用于食品行业的防腐剂。此处在水处理、公路除雪等方面也有应用。工业盐有大粒盐(日晒工业盐)、加工盐(大粒盐粉碎)、水洗盐(精制工业盐)、融雪盐、水处理用盐。
 
工业盐跟食用盐有本质的区别,这是每一个工业盐厂家首先要搞清楚的,这是什么时候都不能逾越的的鸿沟,有不法厂家用工业盐代替食用盐,将两者混为一谈,这是国家法律和政策绝对不容允许的,必须强力打击的。
 
  食用盐是较纯净的氯化钠;工业用盐中除含有氯化钠之外,还有亚硝酸钠等。常见的工业盐中毒事件,多数情况下是由误食或过量食用亚硝酸钠引起的。在食品工业中多用作熟肉食品的发色添加剂。我国《食品添加剂使用卫生标准》规定,亚硝酸钠在肉食中最大使用量是0.15克/千克,其残留量在肉制品中不得超过0.03克/千克;在肉制品罐头中不得超过0.05克/千克。一般而言,人体只要摄入0.2~0.5克的亚硝酸盐,就会引起中毒;摄入3克亚硝酸盐,就可致人死亡。而亚硝酸钠主要用于染料、医药、印染、漂白等方面,由于有增色、抑菌防腐作用,是化工原料的一种。
 
  食盐过多都可能会引起高血压和胃癌,也可能加重骨质疏松症和哮喘。更何况食用工业盐,两者本质的差别是安全指标。按照国家标准,食用盐比工业盐多了氟、钡、砷、铅的限量要求。也就是,要作为食用盐,就需要检测过这些成分而且符合限量要求;作为工业盐,则不必满足这些限制,也不用进行检测。
 
  对于厂家和消费者选购时食用盐含碘,质白,呈细沙状,水分极少,用手揉捏时不会有凝结感,特殊情况下也可能显黄色或淡蓝色;工业盐不含碘,色泽灰暗,外形多为颗粒状,水分含量大,亚硝酸钠也可能微显淡黄色。


Industrial salt is a kind of basic raw material for chemical industry, which is called "the mother of chemical industry". It is used in soap making, glass production, daily use chemical, petrochemical and so on. It can also be used as a preservative in the food industry. There are also applications in water treatment, road snow removal and so on. The industrial salt contains large grain salt (suntan industrial salt), processed salt (large grain salt), water washing salt (refined industrial salt), snow melting salt, water treatment salt.
 
Industrial salt and edible salt are essentially different, each of which is an industrial salt manufacturers must first make clear, this is not insurmountable gap between what time, illegal manufacturers with industrial salt instead of salt, the confused, this is the national laws and policies cannot be allowed, must be a strong blow the.
 
Edible salt is a pure sodium chloride; in addition to sodium chloride in industrial salt, sodium nitrite and so on. Common industrial salt poisoning, mostly by eating or excessive consumption caused by sodium nitrite. In the food industry, it is used as a color additive for cooked meat. China's "Hygienic standard for the use of food additives" stipulates that the maximum consumption of sodium nitrite in meat is 0.15 grams per kilogram, and its residues in meat products should not exceed 0.03 grams per kilogram. In the canned meat products, it should not exceed 0.05 grams per kilogram. In general, the human body is intoxication as long as it takes 0.2 to 0.5 grams of nitrite, and the intake of 3 grams of nitrite can cause death. Sodium nitrite is mainly used in dyes, medicine, printing and dyeing, and bleaching. It is a kind of chemical raw material because of its color enhancement, bacteriostasis and anticorrosion.
 
Too much salt can cause hypertension and stomach cancer, and it may also aggravate osteoporosis and asthma. In addition to the consumption of industrial salt, the difference in nature between the two is a safety indicator. According to the national standard, the limit of fluoride, barium, arsenic and lead is more than the industrial salt. That is to say, as an edible salt, it is necessary to detect these ingredients and meet the requirement of limit. As an industrial salt, it is not necessary to satisfy these restrictions or to detect.
 
For the manufacturers and consumers to buy Edible salt iodine, white matter, a sandy, little water, hand kneading no condensation, may also show yellow or light blue under special circumstances; industrial salt without iodine, gray color, shape is granular, water content, sodium nitrite may also micro show pale yellow.

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