Note the use of ferric chloride, ferric chloride health hazard pathways: inhalation, ingestion, percutaneous absorption. Health hazard: inhalation of the dust of the entire respiratory tract have a strong stimulating effect of corrosion and damage the mucosal tissue, cause chemical pneumonia. A strong eye corrosive, in serious cases can lead to blindness. Skin contact can cause chemical burns. Oral burns to the mouth and digestive tract industrial-grade ferric chloride, severe abdominal pain, vomiting and prostration. Chronic effects: Long-term ingestion may cause liver and kidney damage. Ferric skin contact: Immediately wash with water at least 15 minutes. If it burns, medical treatment. Eye contact: immediately filed eyelid, at least 15 minutes with running water or saline. Inhalation: rapidly from the scene to fresh air. Keep the airway open. Artificial respiration if necessary. Medical treatment. Ingestion: patients immediately clear mouthwash, or egg white to the blues. Fire fighting methods: water mist, available around the fire extinguishing media. Ferric chloride, ferric chloride color reaction of hydroquinone and resorcinol in green and ferric chloride was purple a- naphthol purple precipitate with ferric chloride reaction, in fact, lead to Fe3 + oxidation Coupling generate binaphthol (1) thiocyanate ions (SCN-) can be combined with the iron ions into the blood-red iron thiocyanate complex color reaction. (2) a phenolic hydroxyl group (hydroxyl groups attached directly to the benzene ring) in combination with iron ions into the purple [Fe (C6H5O) 6] 3+ complex of ferric chloride color reaction. Essentially the use of thiocyanate ions and phenol with strong coordination of anhydrous ferric chloride ions and molecules as ligands. Ferric ion also has a strong coordinating, it is easy to accept the coordinating groups, become a ligand, so thiocyanate ions and phenol easily and iron ions to form coordination complexes, color reaction. Polyphenols is directly connected to the benzene ring hydroxyl -OH substance ferric chloride factory outlets, the occurrence of the complex color reaction: Fe3 + + 3C6H5OH = Fe (C6H5O) 3 + 3H +, was purple, the root causes that led to energy difference becomes smaller, the electronic transition energy absorbed waves grew low, which was complementary colors of red and blue and purple. How much is a ton of ferric chloride | ferric | rich students provided by the Guangzhou Environmental Protection Engineering Co., rich students. Environmental Protection Engineering Co., Ltd. Guangzhou Fu students (www.fsyhb.com) strong, credible, in Guangzhou environmental monitoring equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the rich into the brilliant students and you work for a better future!