1. Industrial salt is widely used in industry. It is one of the most basic raw materials in the chemical industry and is called "the mother of the chemical industry". Hydrochloric acid, caustic soda, soda ash, ammonium chloride and chlorine in the main products of basic chemical industry are mainly produced from industrial salt.

2. Industrial salt refers to crude salt, which is divided into lake salt, well salt and sea salt. Because the seawater in sea salt has dissolved many elements, the industrial value of sea salt is relatively high and the edible value is relatively low.

3. Composition structure:

In the chemical industry, crude salt and processing salt are widely used as raw materials for the production of chemical products mainly composed of chlorine and sodium, such as chlorine, bleaching powder, caustic soda and soda ash. Edible salt and industrial salt have the same chemical composition, but their uses are different.

Because crude salt is a natural product, refined salt is also obtained by simple processing of crude salt. Besides the main components of sodium chloride, it also contains many impurities, so it can't be called sodium chloride. Instead, it is customary to use only one word "salt" to refer to those with sodium chloride as the main component, such as crude salt, sea salt, well salt, rock salt, iodized salt, non-iodized salt, refined salt, big salt, broken salt and washed salt.

4, product classification:

Regular cubic crystals or particles composed of multiple regular cubic crystals can be divided into solarization industrial salt and refined industrial salt according to their uses.

Molecular formula: sodium chloride

Molecular weight: 58.44 (according to international atomic weight 1997)

Extended data:

1, precautions related to industrial salt:

Industrial salt can be packaged or in bulk when it leaves the factory (field). Packaged products shall be marked with product name, specification, trademark, grade, production unit and number of this standard. The transportation should be covered, and the goods that cause product pollution should not be mixed. Products should be stored to prevent dust and other debris pollution and rain.

2, industrial salt inspection rules:

Products produced by the same production process and the same resources are regarded as a batch. All indicators in the inspection results should meet the requirements of the corresponding grade of this standard, otherwise they should be downgraded; If any index does not meet the requirements of the minimum level of this standard, the spare sample of this sample shall be taken to re-determine the nonconforming product; If the inspection results still do not meet the minimum requirements of this standard, the batch of products is judged to be unqualified.

Industrial salt shall be inspected by the quality inspection department of the production unit or a qualified quality inspection institution. When the product leaves the factory (field), a certificate of conformity shall be attached, indicating the product name, specification, production unit, production date, grade and number of this standard.

Baidu encyclopedia-industrial salt