Post-treatment method of sodium hydrosulfide finished product
A technology for sodium hydrosulfide and finished products, applied in chemical instruments and methods, sulfur compounds, inorganic chemistry, etc., can solve the problems of lack of clear documentation and lack of product approval, and achieve the goal of reducing raw material consumption, easy control, and improving product purity. Effect
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Embodiment 1
[0013] The finished product of 32% sodium hydrosulfide synthesized in the workshop, the color is orange-red, add 2.5% of the 40% industrial-grade hydrazine hydrate to the sample, heat to 85 degrees Celsius, keep for 4 hours, the product color is yellow-green, trisulfide The content of sodium carbonate is below 0.056%.
Embodiment 2
[0015] The 44% sodium hydrosulfide product synthesized in the workshop is orange-red in color. Add 3% of 40% industrial-grade hydrazine hydrate to the sample, heat it to 85 degrees Celsius and keep it warm for 4 hours, the color of the product is yellow-green, trisulfide The content of sodium carbonate is below 0.056%.
Embodiment 3
[0017] The finished product of 45% sodium hydrosulfide synthesized in the workshop is orange-red. Add 3% of 40% industrial-grade hydrazine hydrate to the sample. After heating to 85 degrees Celsius for 4 hours, the color of the product is yellow-green, trisulfide The content of sodium carbonate is below 0.056%.
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