Is 36% liquid sodium hydrosulfide dangerous?**
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I checked the **2015 version of the Chemicals List** – sodium hydrosulfide is classified as a hazardous chemical. However, nothing is mentioned regarding liquid forms of it. According to the notice issued by the General Office of the Work Safety Supervision Administration titled \"Guidelines for the Implementation of the Chemicals List (2015 Version) (Trial)\\", document No. An Jian Zong Tang Guan San [2015] 80, mixtures in which all major components are listed in the **Chemicals List** and whose combined mass or volume ratio of these components is 70% or more (with exceptions for those that do not fall under the criteria for being classified as hazardous chemicals) can be regarded as hazardous chemicals and should be managed accordingly. So does this mean that sodium hydrosulfide with a 36% concentration is not considered a hazardous chemical? Or is an assessment still necessary?
Yes, and it’s very dangerous. When in contact with acidic substances, a large amount of hydrogen sulfide is produced, which is extremely dangerous.
Is 36% liquid sodium hydrosulfide a mixture? Sodium hydrosulfide is a white to colorless cubic crystal with a hydrogen sulfide odor; the industrial form is usually a solution that is orange or yellow in color.
The greatest hazard of sodium hydrosulfide is likely its spontaneous combustion. Even though it won’t catch fire on its own due to being a solution, its toxic hazards still need to be considered
I think it should be the same, but what I want is evidence, not just a feeling
Is there such a way of reasoning? Please read the entire text N+1 times until you understand it.
IV) For entries in the **Chemical Catalog** that do not specify a content level other than mixtures, this refers to industrial products or chemicals with a purity higher than that of industrial products; when used as pesticides, it refers to their active ingredients.