Yellow phosphorus is also known as white phosphorus, and its allotropes are red phosphorus and black phosphorus. Yellow phosphorus is a colorless wax-like crystal. It turns yellow when it is light, and it has a pale green phosphorescence in the dark. It has a smell of garlic and is extremely toxic. It can be used in the manufacture of special match materials and in the manufacture of phosphoric acid, phosphates, pesticides, signal bombs, etc. When exposed to air at normal temperature, phosphorus trioxide and phosphorus pentoxide are naturally formed. It can be burned or even exploded by contact with impact, friction or contact with oxidizing agents such as potassium chlorate. It should be kept in water during storage and transportation to prevent air from direct sunlight. Common phosphides are: phosphine and zinc phosphide, which are most toxic. Phosphorus chlorides and oxides such as phosphorus oxide, phosphorus pentoxide, phosphorus oxychloride and phosphorus pentoxide are irritating. Tetraphosphorus trisulfide is basically non-toxic.
Yellow phosphorus enters the body from the respiratory tract, digestive tract or skin, which can increase blood phosphorus and accelerate calcium excretion in the body, causing bone decalcification. Phosphorus can inhibit the oxidation process in the body, make protein, fat metabolism disorders, blood sugar lower, liver glycogen decreased, blood lactic acid increases, phosphorus can cause burns when exposed to skin.
Occupational yellow phosphorus poisoning is caused by accidents and is caused by dissolved phosphorus burns. In addition to skin burns, most patients recover after 3 to 5 days. Mild poisoning In addition to skin burns, headaches, dizziness, general malaise, nausea or vomiting, bradycardia and other symptoms. The valley-alanine aminotransferase is slightly elevated and usually recovers within 3 to 4 weeks. The above symptoms of severe poisoning are aggravated. After 2~3 days, hepatomegaly and jaundice appear, severe acute hemolytic anemia occurs, resulting in acute renal failure, acute hepatic necrosis and coma. Chronic poisoning is divided into early, middle and late stages according to the process of onset. Can cause symptoms such as osteoporosis and pathological fractures. Mandibular necrosis often occurs more than ten years after the phosphorus removal operation.
If skin contact occurs, immediately remove the contaminated clothing and rinse with running water or a damp cloth. Conditional can be soaked or consulted with 2% copper sulfate solution. Eye contact should be lifted immediately and rinsed with running water or saline for at least 15 minutes. Inhalers should leave the scene and take artificial respiration or seek medical attention if necessary. Ingestors should be lavage and catharsis, it is best to seek medical advice to prevent gastric perforation or bleeding.
When the concentration of phosphorus in the air exceeds the standard, wear a gas mask, safety glasses, wear appropriate protective clothing, and wear protective gloves. In the event of a leak, isolate the leaking area and set a warning sign around it to cut off the source of the fire. Cover with water, moist sand or dirt. If there is a large amount of leakage, it should be removed under the guidance of the technician.
Yellow phosphorus enters the body from the respiratory tract, digestive tract or skin, which can increase blood phosphorus and accelerate calcium excretion in the body, causing bone decalcification. Phosphorus can inhibit the oxidation process in the body, make protein, fat metabolism disorders, blood sugar lower, liver glycogen decreased, blood lactic acid increases, phosphorus can cause burns when exposed to skin.
Occupational yellow phosphorus poisoning is caused by accidents and is caused by dissolved phosphorus burns. In addition to skin burns, most patients recover after 3 to 5 days. Mild poisoning In addition to skin burns, headaches, dizziness, general malaise, nausea or vomiting, bradycardia and other symptoms. The valley-alanine aminotransferase is slightly elevated and usually recovers within 3 to 4 weeks. The above symptoms of severe poisoning are aggravated. After 2~3 days, hepatomegaly and jaundice appear, severe acute hemolytic anemia occurs, resulting in acute renal failure, acute hepatic necrosis and coma. Chronic poisoning is divided into early, middle and late stages according to the process of onset. Can cause symptoms such as osteoporosis and pathological fractures. Mandibular necrosis often occurs more than ten years after the phosphorus removal operation.
If skin contact occurs, immediately remove the contaminated clothing and rinse with running water or a damp cloth. Conditional can be soaked or consulted with 2% copper sulfate solution. Eye contact should be lifted immediately and rinsed with running water or saline for at least 15 minutes. Inhalers should leave the scene and take artificial respiration or seek medical attention if necessary. Ingestors should be lavage and catharsis, it is best to seek medical advice to prevent gastric perforation or bleeding.
When the concentration of phosphorus in the air exceeds the standard, wear a gas mask, safety glasses, wear appropriate protective clothing, and wear protective gloves. In the event of a leak, isolate the leaking area and set a warning sign around it to cut off the source of the fire. Cover with water, moist sand or dirt. If there is a large amount of leakage, it should be removed under the guidance of the technician.
ã€Comment】 ã€Print this article】 ã€Close this page】 ã€Large, medium and small】
Bochuang Hardware Co., Ltd. , http://www.hz-curtain-rod.com