Harm of sodium formaldehyde sulfoxylate:
The toxic gas produced by the decomposition of sodium formaldehyde sulfoxylate can cause headaches, fatigue, poor appetite and even diseases such as nasopharyngeal carcinoma. Sodium formaldehyde sulfoxylate is a strong carcinogen, which is extremely harmful to the lung, liver and kidney of human body. Ordinary people will be poisoned to death if they ingest pure sodium formaldehyde sulfoxylate10g by mouth. The state expressly prohibits its use in food processing.
Hanging white block, also known as carved white powder, is white block or crystalline powder, which is easily soluble in water. It is relatively stable at room temperature, and has strong reducibility and bleaching effect at high temperature. It decomposes when it meets acid, and its aqueous solution begins to decompose harmful substances above 60℃, and decomposes at 120℃ to produce toxic gases such as formaldehyde, sulfur dioxide and hydrogen sulfide.