How to configure a certain concentration of NH4HS
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There is no ready-made NH4HS in the market. How to configure it? (NH4)2S is available for purchase. If it is configured with H2SO4, will H2SO4 dissolve FE in a stainless steel container? Does anyone have any good suggestions? Thank you so much!
Ammonium sulfide solution, to be precise, ammonium hydrosulfide solution, can be obtained by gently heating hydrogen sulfide into ammonia water. By passing hydrogen sulfide into concentrated ammonia water, (NH4)2S·2NH4HS is obtained at room temperature, and by adding hydrogen sulfide at 0°C, (NH4)2S·12NH4HS is obtained. Cool with ice and continuously pass in hydrogen sulfide to obtain an ammonium hydrosulfide solution.
Can I buy NH3 and H2S?
1. The specific configuration is explained in detail on the second floor. 2. The corrosion of sulfuric acid on metals depends on the concentration and temperature. You can refer to the corrosion rate table. 3. Ammonia can be purchased because its properties are relatively stable. 4. Hydrogen sulfide can be prepared by yourself. Metal and dilute acid are sufficient (usually metal zinc is used)