Hazard overviewHealth hazards: eyes, skin, mucosa and upper respiratory tract have a strong stimulation. After inhalation, can cause laryngeal, bronchial convulsion, inflammation and edema, chemical pneumonia or pulmonary edema. Symptoms of poisoning can be burning, wheezing, laryngitis, shortness of breath, headache, nausea and...[detail]

The single sulfur in the activated carbon desulfurizer. It is the raw material of the semi-finished product of ammonium sulfide and pesticide. The mining industry is heavily used in mineral processing. Artificial fiber production is used in sulfuric acid dyeing and other aspects.[detail]

2. The reaction of sodium alcohol and dried hydrogen sulfide to make sodium sulfide:In a 150 ml flask of branch pipe, add 20 ml new distillation of anhydrous ethanol and 2 g sodium metal pieces of smooth surface without oxidation layer, the flask is installed on the reflux condensation pipe and drying, first branch closed. When ...[detail]

1. Absorption method:The hydrogen sulphide gas is absorbed by a solution of sulfide (or caustic soda). Because hydrogen sulfide gas is poisonous, absorption reaction should be under negative pressure. In order to prevent the excessive pollution of hydrogen sulfide in the exhaust gas, several absorbers are operated in series, and...[detail]

Stability: stabilityIt is rapidly decomposed into sodium hydroxide and sodium sulphide in damp air and exothermic. [3]In the dry air, the heating turns yellow, the orange is changed, the melting is black, and the HCl produces H2S, and the reaction is intense. High moisture absorption, high moisture absorption and oxidation, hydr...[detail]

Appearance and properties: white to colorless, hydrogen sulphide - smelling cubic crystals; Industrial products are generally in solution, orange or yellow.Melting point (℃) : 350Relative density (water = 1) : 1.79Flash point (℃) : 90Solubility: soluble in water, soluble in ethanol, ether and so on.Solubility: 620 g/L (20 ℃)[detail]