sesegan在线视频,中文字幕dvd日本欧美精品,久久国语露脸精彩电影,亚洲欧美偷拍另类A∨

Products

Phosphorus trichloride

Phosphorus trichloride to generate hydrochloric acid mist in the air. On the skin, mucous membranes stimulate the corrosive effect. Short-term inhalation of large amounts of steam can cause upper respiratory tract irritation, laryngitis, bronchitis, can occur in severe laryngeal edema caused by asphyxia, pneumonia or pulmonary edema. Skin and eye contact can cause irritation or burns. Severe eye burns can cause blindness. Chronic effects: long-term low level exposure can cause eye and respiratory tract irritation. Can cause phosphorus toxicity Oral Pathology.

【 Back 】