- Zinc hexafluorosilicate
- Zinc fluosilicate
White crystalline powder.
Registry Numbers and Inventories.
Swiss Giftliste 1
Japan ENCS (MITI)
2.10 g/cm3 (20 C)
Solubility in water
Hazards and Protection.
Keep containers tightly closed in a well ventilated area away from food products. Keep away from heat and water.
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
NIOSH certified respirator; chemical goggles or face shield; protective gloves hexahydrate NIOSH certified respirator; goggles or face shield; protective gloves.
Wear positive pressure self-contained breathing apparatus (SCBA).
Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Build dikes to contain flow as necessary.
When heated to decomposition it emits toxic fumes of hydrogen fluoride and zinc oxide.
Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.) Keep run-off water out of sewers and water sources. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible.
Toxic and irritating hydrogen fluoride and silicon tetrafluoride are formed in fires.
Hyperactive reflexes, painful muscle spasms, weakness and tetanic contractures may be noted due to fluoride induced hypocalcemia. Prenatal fluoride supplementation (2.2 mg NaF or 1 mg fluoride daily) during the last two trimesters of pregnancy has been reported to be safe.
Epigastric pain, nausea, dysphagia, salivation, hematemesis, and diarrhea may be noted. These effects may be delayed for several hours following exposure. Gi symptoms are noted when 3 to 5 mg/kg of fluoride are ingested.
Respirations are first stimulated then depressed. Death is usually from respiratory paralysis. Following inhalation, coughing and choking may be noted.
Urticaria and pruritus have been reported following exposure to fluoride.
Cause vomiting by giving soapy water or mustard water; have patient drink large quantities of lime water, if necessary, give stimulant such as strong coffee.
Move to fresh air.
Wash with soap and water.
Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.
USCG CHRIS Code
Std. Transport #