Sodium sulfide

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2018-03-19 00:06:08

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Sodium Sulphide (sodium sulfide technical) is a compound that is widely used in industry. So, the substance used metallurgy, chemical, light and other industries. Sodium sulfide, in particular, used in the production of cellulose, dyes, in the processing of leather. The product is used also in the smelting of some non-ferrous metals. Sodium sulfide is indispensable in the field of analytical chemistry. It is used as a reagent in various processes.

Sodium Sulfide. Formula (Na2S)

Normal aggregate state of matter is considered to be a homogeneous mass, characterized by high sensitivity, or hygroscopic crystals. The substance is produced in the form of the monolith 3 brands and in bulk form (in the form of flakes or granules). Allowed to apply the product with light brown, pale yellow or grayish color. More intense or any other color indicates a significant oxidation of the substance. Such sodium sulphide loses useful features and for the practical application of the. In the product and technical designation contains from sixty-three to sixty-seven percent of the basic substance, provided that the mass fraction of insoluble residue not more than half a percent.

In accordance with the classification level of danger to humans sodium sulfur assigned to the second class. The substance is combustible and explosive. In this regard, it is preferable to store the material in closed rooms, which are equipped with all means necessary to ensure fire safety. It is not recommended to remove the packaging from the product until direct application of a substance. While maintaining the integrity of container sodium sulfide can be stored up to two years. The term of efficient use is only a year.

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Product Transportation should be implemented by any types of transport in closed wagons or containers. Great attention should be paid to the loading and unloading of the substance, especially if you anticipate direct contact with the product Packed in soft containers. During transportation it is necessary to avoid temporary storage in open areas or warehouses, not equipped to do this.

Sodium Sulfide technical Chinese production is Packed in special bags of twenty five kilogram. Packaging provides protection from premature oxidation and exposure to light. In addition, the quality of the packaging used steel drums exclusively for chemical products, containers (IC-1-5(7)) or soft containers of single use. The substance may be packaged in paper bags (four or five) with inner liner – plastic bag. The bags can have a net mass of not more than fifty pounds.

Packaged in specialized containers the substance is transported in open rolling stock type.

The product Density is 1.856 grams per cubic centimeter. The melting temperature reaches 1180 degrees. The product has a high hygroscopicity. In water at twenty degrees dissolve 13,6%, 97.5 degrees – 45% of the substances. The product is capable of forming crystalline hydrates. For aqueous solutions of sodium sulfide technical characteristic alkaline reaction.

The Hydrolysis of sodium sulfide is carried out in the same way as salts, which are formed by weak acid and strong base. Phenolphthalein in a test tube with the solution acquires a pink color. This suggests that in vitro formed alkaline environment. Thus, sodium sulfide, and other salts, which are formed by weak acid and strong base, and hydrolyzed with the formation as the result of alkali.


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Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

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