Sodium Hydrosulphide

As a multifunction chemical product, Sodium hydrosulfide has left footprints in diverse industries. This is a more robust product than Na2S, employed as a leather chemical substance, a reducing agent, and an inseparable part of every dyeing industry. Sodium sulphidrate (NaHS) flake with a whitish to light golden crystalline appearance is a known chemical product among different enterprises; Sodium Hydrosulfide is also a widely used compound. In this case, various Sodium Hydrosulfide Suppliers take care of the market need.
In the company of these manifold chemical suppliers, an Iranian manufacturer has a lead role in the local and worldwide markets. The reputable business partner we are referring to is JAM Group Co. this manufacturer, supplier, and exporter takes pride in its high-quality products resulting from cutting-edge factory equipment. As a customer looking for flawless service in this field, you can entirely rely on JAM Group Sodium Hydrosulfide Flake.


What is Sodium Hydrosulfide?

Sodium Hydrosulfide, or as it is called sodium Sulphidrate commercially, is a vital chemical compound with the formulation of NaSH. This substance is created when sodium hydroxide is used to neutralize hydrogen sulfide (H2S). It is good to know that In the industrial setting, sodium sulfide and NaSH are frequently employed for the same things. When it comes to physical appearance, NaSH is a colorless solid. As a result of hydrolysis by ambient moisture, the tangible exhibits an H2S odor. In comparison to Sodium sulfide (Na2S), which is insoluble in organic solvents, sodium sulfate (NaSH) is more soluble.

  • The HS behaves as a spherical anion due to its quick rotation, resulting in equal occupancy of eight equivalent locations when temperatures above 360 K cause NaSH to assume the NaCl structure;
  • Bear in mind that crystalline NaHS experiences two-phase changes;
  • A rhombohedral structure develops below 360 K, and the HS sweeps into a discoidal shape;
    NaSH has a 350 °C melting temperature, which is relatively low.

NaSH2H2O and NaSH3H2O are two more hydrates that can be used in addition to the aforementioned anhydrous forms. All three species are colorless and exhibit similar, though not identical, behaviors. By treating aqueous solutions of their salts with Sodium Hydrosulfide, it can be utilized to precipitate other metal hydrosulfides. Remember that It is a robust base that is comparable to sodium hydrosulphite.


Different Grades of Sodium Hydrosulfide

When dealing with chemical compounds like Iran Sodium Sulphide, we need to notice the grades every Sodium Hydrosulfide Supplier provides. Needless to say, diverse qualities play a crucial role in helping industries find products that are suitable for their needs. This is because the producer must first choose the level of chemical purity required for the solution based on the usage, then tend to buy the chemical product.

The majority of chemical compounds and Mineral Processing Chemicals are labeled with a grade, which typically denotes the chemical’s purity. Although numerous standards are used in grading, you will most likely come across the ACS, Reagent Grade, and Laboratory Grades. Various chemical producers may employ different terms; however, as a general guideline, ACS and Reagent Grades are typically the purest, whereas Laboratory Grade is less refined. Chemicals that are ACS Grade are typically more expensive than chemicals that are lower grades because a batch-specific Certificate of Analysis accompanies them. As a middle-tier quality, laboratory-grade chemicals are frequently utilized in less thorough studies and educational labs.
Remember that besides its laboratory qualities, sodium hydrosulphite is offered in three different shapes: solid that is in flakes, molten, and liquid. These various forms of Sodium Sulphidrate are known as grades with distinct components. Below, you will discover more about Sodium Hydrosulfide flakes as a vital grade of this chemical product.

Sodium Hydrosulfide flakes

Chemical Exporters provide sodium Sodium Sulphidrate (NaHS) in different shapes; among them, the solid form is most beneficial. It contains higher amounts of required components to have unique functions in diverse industries. Sodium Hydrosulfide flakes are yellow substances that are sold as hydrates and include 30% crystal water. It can be used as a flocculent for wastewater treatment, a processing aid for dehairing in tanneries, a colorant for textiles, and a Sulphidisation (sulfidization) and floatation agent in the mining processing. This product holds various chemical characteristics; the following are the most important ones:

  • Produces sodium thiosulfate, sodium sulfite, and sodium carbonate when it comes into contact with airborne oxygen and carbon dioxide gas;
  • H2S gas is produced when it comes into contact with acid;
  • Alkaline material that is corrosive and reducible;
  • considerable deliquescence;
  • High water solubility and alcohol solubility.


Further Information About Sodium Hydrosulfide Production Process

As discussed in this article previously, the creation of Sodium Hydrosulfide (NaSH) from the reaction of sodium sulfide (Na2S) and hydrogen sulfide is the subject of the current section. You should consider that hydrogen sulfide can be absorbed into aqueous solutions containing sodium sulfide to create Sodium Hydrosulfide in both batch and continuous procedures. The provision for obtaining the complete conversion of sulfide to hydrosulfide possible has been achieved in ongoing operations for carrying out this reaction. The reaction we are discussing involves continuously introducing gases containing hydrogen sulfide and an aqueous solution containing sodium sulfide into a reaction chamber; This will include continually extracting the product solution from a tank that has stirrers or a gas-liquid contact tower.

Using a reaction system with an unvented reaction chamber makes it possible to produce Sodium Hydrosulfide continuously. This chemical product used in various industries, even as a Mineral Processing Chemical, is delivered from sodium sulfide solutions and hydrogen sulfide without having to install and maintain metering equipment or have space for such hazardous amounts of hydrogen sulfide vented. In this section, we go into detail about the production process of this chemical product; to understand this topic clearly, the information about this issue is divided into several parts.

The production Chamber

A tower or stirrer-equipped tank would make suitable candidates for the reaction chamber where the process occurs. It should also have a vent. Although it is generally sealed, it contains a pressure relief valve that opens when the pressure rises over the atmosphere. It is also crucial to know that even the supply of hydrogen sulfide gas to the chamber is controlled to enter at a pressure lower than the amount at which the vent’s pressure release is functional. As a result, the quantity needed to replace the hydrogen sulfide that is consumed during the reaction with sodium sulfide directly affects the pace at which it is introduced.

The Quality of Hydrogen Sulfide

The hydrogen sulfide that Sodium Hydrosulfide Manufacturers utilize in this method is either commercially pure hydrogen sulfide, which can contain up to around 5% by volume of other gases that are virtually inert to the reaction, or essentially pure hydrogen sulfide (99.5 percent H2 S by volume, for example).

As the hydrogen sulfide is consumed in the reaction, such gases inert to the response—which may include hydrogen or hydrocarbon gases—will collect in the free space of the unvented reaction chamber. It is helpful to quickly open the vent in order to purge the system of the collected inert gas when such gases have accumulated to the point where the partial pressure of the hydrogen sulfide is sufficiently reduced to unnecessarily inhibit the course of the reaction. The moment venting becomes desired on the operation’s economics may happen, for example, when the inert gases account for 10% to 25% of the total gas at the reaction chamber’s top.

The Quantity Of Sodium Sulfide

To produce a product with a desired high concentration of hydrosulfide, the sodium sulfide is typically given to the reaction chamber as an aqueous solution containing at least about 30% by weight of sodium sulfide. It is practical to utilize concentrations up to roughly 65%. The temperature of the solution is maintained at a high enough value for any given sodium sulfide concentration to keep it in a fluid enough state for efficient operation, typically in a nearly fully liquid form, both in the supplied equipment and in the reaction chamber.

The Outcome Of This Production Process

Sodium Hydrosulfide is generally produced as an aqueous solution at a concentration of between 40 and 45 percent by weight. This chemical product can be kept in liquid form at a temperature of around 70° C. It is also delivered between 65 and 75 percent by weight in a solid flake form that is used as Sodium Hydrosulfide floatation too. It is good to bear in mind that by adding an aqueous solution having about 35 percent (or about 30 percent to about 45 percent) sodium sulfide to the reaction system, the procedure of the present invention produces a product that contains 40 percent to 45 percent Sodium Hydrosulfide.

There are diverse Sodium Hydrosulfide Exporters that supply Sodium Sulphidrate (NaHS) Flakes with higher amounts of sodium sulfide. These products, which include between 55 and 75 percent or more Sodium Hydrosulfide, are made by adding an aqueous solution of between 50 and 65 percent, preferably 60 percent, sodium sulfide to the reaction system. If necessary, it also comprises the concentration of the hydrosulfide made as a result of evaporating water to the desired level. Last but not least, remember that the outcome’s quality significantly impacts the sodium hydrosulphite price.


Sodium Hydrosulfide Applications

When it comes to Sodium Sulphidrate (NaHS) Flake, multiple applications are best executed by varied professionals from diverse industries. The fact is every year, thousands of these chemical products are produced and are shipped by Sodium Hydrosulfide Exporters, so-called “Гидросульфид натрия Производитель” by Russians. If you’re looking for a chemical exporter to handle your industrial need, JAM Group Co., with a respecting experience in this field, is in your service; So, after learning about the roles of this substance, do not hesitate to ask this company if you are in demand. But before this task, it is vital to note that this chemical compound is mainly regarded as a Mineral Processing Chemical.

Leather Depilatory

Sodium Sulphidrate, as a leather chemical, is an inseparable part of leather depilatory. Remember that this is one of the main functions of this product. In a procedure known as the unhairing-liming stage, NaSH solutions are used to remove hair from cow, calf, sheep, and other animal hides. The unhairing-liming step’s goal is to take all the parts of the raw skin that aren’t converted into leather, like the superficial epidermis with its hair and the subcutaneous fatty layer. In the liming process, chemicals like sodium sulfide (Na2S), Sodium Hydrosulfide (NaHS), and lime are introduced, opening the skin’s fiber structure.

Copper Sulfide Flotation

The majority of the copper in the world is found in the particular mines that dominate the western mountain ranges of North and South America. A moly circuit is also used since these mines contain economically viable Molybdenum. Bear in mind that the procedure uses a reverse flotation circuit to separate the Moly and Copper sulfides from the Cu Sulfide concentrate produced during flotation. In this process, in a bank of flotation cells, the MoS floats while the CuS is depressed. The control device also includes an ORP meter, generally operated at a voltage between -450 and -500 mv. All in all, the reagent chosen to keep the pulp at the desired ORP is NaSH.

Kraft Paper Industry

At Kraft, sodium sulfate and caustic soda are converted to sodium sulfide in reduction furnaces in order to manage the sulfidity of the pulping process. Outages, whether intentional or unexpected, lead to lower sulfidity concentrations. Using an ORP, sulfidity is assessed (Oxidation reduction Probe). Usually, NaSH is added during these outages to bring the sulfidity levels back to normal. Additionally, Kraft mills that are close to (transport) a waste NaSH manufacturing facility exclusively use purchased NaSH and purchased NaOH to control sulfidity. These waste NaSH facilities frequently use sodium carbonate, which has a high CO2 concentration, as the H2S source.


About JAM Group’s Sodium Hydrosulfide

Why should we pick the JAM Group out of all the businesses operating in the Sodium Sulphidrate sector? Many reasons are involved in considering this company as a trustworthy business partner. JAM Group Sodium Hydrosulfide flake has distinctive properties. This product has crisp sides, a transparent yellow tint, and a well-defined shape. These features make it an excellent choice for mining and leather jobs.
When working with JAM Group Co., you have various logistics alternatives. Sodium Hydrosulfide is packaged in safe packings in accordance with international standards. Other filling techniques are also available if that is what you are looking for. Customers can order their product in jumbo bags and alter the weight of each shipment; these bags typically hold about 1 ton of NaHS, but customers can choose just 800 kg instead. If you are curious to read more about this reputable manufacturer, we highly recommend making your way to About Us section.



As discussed before, Sodium Hydrosulfide with the formula of NaSH is a light-yellow colored substance with diverse functions in many industries. This chemical product is exported by sodium sulphidrate providers or, as Turkish people say, Sodium hidrosülfür Üreticisi, in varied shapes: liquid, molten, and flacks. With sophisticated machinery and cutting-edge technologies, Sodium Hydrosulfide (NaSH) is produced when sodium sulfide (Na2S) and hydrogen sulfide react. Remember that the amount of sodium sulfide, the quality of hydrogen sulfide, and the production chamber are essential factors that have a role in a high-quality outcome. Sodium sulphidrate (NaHS) flake is employed as a hair removal agent in the leather industry. However, this product also has usages in mining processing and pulp manufacturing.