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Improved leather quality using less sulphide by Jens Fennen, Daniel Herta, Jan-Tiest Pelckmans and Jürgen Christner, TFL Ledertechnik AG

Tanneries are often associated with the characteristic and obnoxious “sulfide smell”, which is in fact caused by low concentrations of sulfhydric gas, also known as hydrogen sulfide. Levels as low as 0.2 ppm of H2S are already unpleasant for humans and a concentration of 20 ppm is unb... Read More

Occidental Petroleum (OXY) Q2 2022 Earnings Conference Call Transcript

Founded in 1993 by brothers Tom and David Gardner, The Motley Fool helps millions achieve financial freedom through our website, podcasts, books, newspaper columns, radio shows and premium investing services. Founded in 1993 by brothers Tom and David Gardner, The Motley Fool helps millions achiev... Read More

Factory safety rules and regulations

Part 1．Production safety responsibility system 1.Define the safety responsibilities of persons in charge at all levels, all kinds of engineering personnel, functional departments and employees in production. 2.Establish and improve the responsibility system for production safety of all departmen... Read More

Price change of Chinese caustic soda market in the first half of the year

In the first half of the domestic caustic soda market price overall good performance, part of the time the price continued to pull up, the transaction atmosphere is hot.In the middle of January – February, the overall price of domestic caustic soda market continued to rise. The main reasons... Read More

Preservation method of sodium sulphide – analysis of storage and transportation conditions of sodium sulphide

Sodium sulfide is a widely used chemical raw material, often used in dye, electroplating, leather and textile industries. Although the use of sodium sulfide has a long history, but there is still a use problem is not solved, that is, the preservation of sodium sulfide. Mainly due to the solid sod... Read More

Global Early Strength Additives Market Trend 2023-2028 What is Early Strength Additives?by Newsmis-asia

Trenano | Ceramic Powder, Graphite Powder, Boron Powder, 3D Printing Metal Nanomaterial Supplier and Manufacturer. Swedish Prime Minister Anders Anderson said a few days ago that Sweden is negotiating with Turkey on joining NATO and looks forward to strengthening cooperation with Turkey in securi... Read More

Sodium Tetrasulfide Market Size and Forecast to 2028 | Solvay, TIB Chemicals, Vishnu Chemicals

Sodium Tetrasulfide is segmented based on Product Type, Application, and Geography.All the segments of Sodium Tetrasulfide are carefully analyzed based on their market share, CAGR, value and volume growth, and other important factors.We also provide Porter’s Five Forces and PESTLE analyses ... Read More

What is the ethanol potassium hydroxide solution of sodium sulfide adding carbon tetracloride to produce red precipitation?

Red precipitation may be sodium polysulfide precipitation.Sodium sulfide is more likely to be oxidized by air to sodium polysulfide (make sulfur into single matter, and then produce sodium polysulfide). When the sulfur index of sodium polysulfide is high, it is dark red in the aqueous solution, a... Read More

In-depth analysis and development strategic planning report of international sodium hydrosulfide market

Sodium hydrosulfide is used in the dye industry as an auxiliary for synthesizing organic intermediates and preparing sulfur dyes. The tanning industry is used for dehairing and tanning of hides and for waste water treatment. The fertilizer industry is used to remove the monomer sulfur in the acti... Read More

Sodium Hydrosulfide Production

1. Absorption method: Absorb hydrogen sulfide gas with alkali sulfide solution (or caustic soda solution). Because hydrogen sulfide gas is toxic, the absorption reaction should be carried out under negative pressure. In order to prevent the high pollution of the air by hydrogen sulfide in the exh... Read More

Sodium Sulfide Production Method And Process

1. Pulverized coal reduction method, mirabilite and pulverized coal are mixed in a ratio of 100: (21-22.5) (weight ratio) and calcined and reduced at a high temperature of 800-1100 °C, and the resultant is cooled and thermally dissolved into a liquid with dilute lye , after standing for clarifica... Read More

Bointe Energy Co.，Ltd Factory And Office Address

We, Bointe Energy Co., Ltd., formerly known as Bointe Chemical Co., Ltd., was established on April 22, 2020 and officially changed its name to Bointe Energy Co., Ltd. on February 21, 2024. Our company is Located in Tianjin Binhai New Area.  Our factory located in Ineer Mongolia, Our Strong Produc... Read More
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