understanding"**"

**, the appearance of pale yellow brittle crystals or powder, a special odor. The molecular weight was 32.06, the vapor pressure was 0.13 kPa, the flash point was 207°C, the melting point was 119°C, the boiling point was 444.6°C, and the relative density (water=1) was 2.0. ** Insoluble in water, slightly soluble in ethanol, ether, soluble in carbon dioxide. As a flammable solid, ** is mainly used to make dyes, pesticides, matches, gunpowder, rubber, rayon and so on.

Alias

Stone **, **, Stone **, Kunlun sulfonium, sulphotoluene, sulfoxide, annoying, shitingzhi, Jiuling sinus, mountain stone, sulphon sand, general, white **, natural Sulfur, ** pollen.

**classification

It plays a big role in the daily life and industrial production.

Mainly used in rubber tires, ****, pesticides, fertilizers, food industry, flowers and trees, fruit trees, daily chemical aid, industrial products

Mainly divided into two categories and food grades** Industrial grade**

Food grade**: If there is bleaching in food production, the effect of antisepsis is necessary for cornstarch processing

It also plays an important role in the processing of dried fruits.

Industrial grade **: such as electronic semiconductors, plastics, latex, paper, pharmaceutical fine chemicals, industrial ceramics, building materials products, auxiliary materials and other industrial sectors

Style classification

**Powder **Block **Pellets **Plate **

Effect classification

Solution ** worm (parasite locust, etc.) dampness and antipruritic drugs

Medicinal herbs

Natural elements*Huang minerals* Naturally, crystals containing sub-substances or * minerals sublimed by refining.

toxicity

** is a low-toxicity dangerous product, but its steam and sulfur dioxide generated after burning is highly toxic to the human body. Generally inhaled, ingested or absorbed through the skin. Excessive ** is rapidly oxidized into non-toxic thiols (sulfates or thiosulfates) in most parts of the intestine. Excreted by the kidneys and intestines, free hydrogen sulfide that is not oxidized produces toxic effects on the body. Hydrogen sulfide is a kind of strong nerve poison and has obvious stimulatory effects on the gastrointestinal mucosa and respiratory tract. The higher the concentration, the more obvious the systemic toxicity. Hydrogen sulfide binds to ferric iron in oxidized cytochrome oxidase, which inhibits the activity of the enzyme, impedes the redox process within the tissue cells, causes intracellular asphyxia, hypoxia, and manifests as central nervous system symptoms. And suffocation symptoms.