Sodium hydrosulfide is a chemical compound with the formula NaHS. This product is produced by the semi-neutralization of hydrogen sulfide with sodium hydroxide. NaHS is a suitable material for the synthesis of organic substances and sulfur-containing inorganic compounds, and it is sometimes produced in solid form and often in liquid form.

Applications

Thousands of tons of sodium sulfide are produced annually. Its main application is in the paper industry as a sulfur-containing reagent in the Kraft process. It is used as a flotation reagent in the copper industry and also in lead and zinc industries. In the leather and hide industries, it is used for hair removal from hides.

Overall, it can be said that regarding the types of chemical and physical properties, sodium sulfide is a nearly suitable replacement for sodium sulfide. The reasons that often encourage consumers to use sodium hydrosulfide instead of sodium sulfide are as follows:

1. The physical state of NaHS is soluble, and there is no need for preparation in solution, thus saving time and human resources.

2. In cases where the goal of using Na2S and NaHS is to add sulfur, the consumption of NaHS is less than that of Na2S since 56 kilograms of NaHS provides the same amount of sulfur that 78 kilograms of Na2S produces; therefore, economically, using NaHS is more cost-effective.

3. Due to the lower pH of the NaHS solution, the irritation and burning effect of the solution on the skin is less compared to the Na2S solution, thus ensuring human health is not jeopardized.

4. According to the curves related to the freezing point of Na2S and NaHS found in reputable books and references such as Kirk and Othmer, the freezing point of the NaHS solution is much lower than that of Na2S, making it possible to use NaHS without freezing, which is one of the main problems associated with the use of Na2S.

Other products of this Company

Strontium sulfide

Sodium sulfide

Sodium hydrosulfide