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Chemical Name: Potassium Fluorozirconate
Chemical Formula: K2ZrF6
Appearance: Usually found as a white or colorless crystalline powder with no detectable odor
Common Uses: This chemical often turns up in metal finishing, ceramics, glass manufacturing, and as a catalyst in certain industrial processes
Synonyms: Dipotassium hexafluorozirconate, potassium zirconium fluoride
Routes of Entry: Inhalation, skin contact, ingestion, and eye contact
Hazard Class: Eye, skin, and respiratory tract irritant
Acute Health Effects: Exposure can bring about itching or burning of the eyes and skin, coughing, irritation of the throat or nose, and—in accidents with high exposures—much more severe systemic health issues
Potential Chronic Health Impact: Long-term or repeated exposure to dust may cause bone brittleness or mottled teeth thanks to the fluoride component; kidneys could feel the effect of chronic exposure too
Environmental Impact: Toxic to aquatic organisms, with risks of long-term adverse effects if released uncontrolled
GHS Symbols: Exclamation mark (indicates irritation), health hazard (for serious risk)
Component: Potassium Fluorozirconate Percentage: Typically over 98% purity in industrial grades
CAS Number: 16923-95-8
Relevant Impurities: Trace levels of other metal fluorides may appear, depending on production source; these traces rarely change the hazard profile much
Inhalation: Move exposed person to fresh air, keep at rest; medical attention needed if breathing problems develop
Skin Contact: Wash affected areas with plenty of water; chemical burns might need prompt medical care
Eye Contact: Rinse eyes with water for at least 15 minutes, lifting eyelids occasionally; speedy medical help recommended
Ingestion: Rinse mouth, give water if conscious—medical service is essential due to toxicity risk
Suitable Extinguishing Media: Regular dry chemical, foam, carbon dioxide, or water spray
Hazardous Combustion Products: Toxic and corrosive fumes, especially hydrogen fluoride and zirconium oxides
Protective Equipment: Full-face self-contained breathing apparatus and protective clothing for fire responders, as fluoride compounds may form corrosive gases
Fire Risks: While not itself flammable, the substance will emit dangerous fumes if heated strongly or if it comes in contact with acids or fire
Personal Precautions: Avoid breathing dust, ventilate area, and keep unnecessary personnel away
Protective Equipment: Dust mask, gloves, and eye protection always called for
Spill Cleanup: Sweep or vacuum spills; use a method preventing dust buildup; avoid mixing with acids due to formation of hydrogen fluoride
Environmental Precautions: Prevent from entering drains, sewers, or water sources; collect as much as possible in suitable containers for legal disposal
Safe Handling: Minimize dust, ensure good ventilation, never eat, drink, or smoke near this chemical
Storage Recommendations: Store in tightly closed containers in cool, dry, and well-ventilated places; keep away from strong acids, moisture, combustibles, and incompatible substances
Precautionary Measures: Always keep containers properly labeled, and store away from areas prone to leaks or accidental spills
Engineering Controls: Local exhaust and general ventilation to keep airborne concentrations as low as possible
Personal Protection: NIOSH-approved dust respirator, chemical-resistant gloves such as nitrile, goggles or face shield, lab coats, and full-body coverage for high-risk activities
Occupational Exposure Limits: OSHA and ACGIH recommend low thresholds for fluoride dusts, typically under 2.5 mg/m3 as fluoride to reduce long-term effects
Hygiene Measures: Wash hands thoroughly after handling, shower if contamination is suspected, and change contaminated clothing quickly
Physical State: Crystalline powder
Color: White to colorless
Odor: No noticeable odor
Melting Point: Decomposes before melting
Solubility: Slightly soluble in water; solubility increases in hot water
Density: Roughly 3.1 g/cm³
pH value: Acidic solutions result from hydrolysis in water
Other Characteristics: Does not burn, but high heat triggers toxic decomposition
Chemical Stability: Stable under ordinary conditions of use and storage, as long as moisture and acids stay out of the picture
Materials to Avoid: Keep away from acids—hydrogen fluoride, a very toxic gas, forms instantly with acid contact
Hazardous Decomposition: Hydrogen fluoride and zirconium compounds break out at high temperatures or on contact with strong acids
Polymerization: No dangerous polymerization expected
Routes of Exposure: Inhalation, dermal contact, ingestion
Acute Toxicity: Inhaling or swallowing can cause nausea, vomiting, abdominal pain, shortness of breath, chest tightness, and burns to mucous membranes
Chronic Effects: Ongoing contact or inhaling dust for weeks or months may lead to skeletal fluorosis, which brings joint stiffness and pain, as well as effects on the kidneys, teeth, and bones
Sensitization: Repeated exposure can make the body overreact; even small dusts irritate airways
Carcinogenicity: No firm evidences ties this specific compound to cancer in people; general fluoride studies still call for caution
Aquatic Toxicity: Harmful for fish and some aquatic invertebrates, likely to cause long-term disturbances in aquatic environments if released uncontrolled
Persistence: The chemical and its ions do not break down easily, so it hangs around for quite a while
Bioaccumulation: There’s some evidence of bioaccumulation in aquatic life, especially with repeated releases
Mobility: Moderate—may move through soil to surface water depending on local conditions
Waste Management: Safe disposal often involves sending it to licensed hazardous waste processors; landfill is possible under certain environmental regulations, never allowed in general trash
Precautions: Never dump down drains or allow to reach surface waters
Labeling and Documentation: Always classify and document waste according to regional and national rules; secure proper labeling to control unnecessary exposures downstream
Shipping Classification: Many countries consider this substance hazardous for transport because of fluoride toxicity
UN Number: Recognized under international hazardous goods lists
Packing Group and Hazards: Usually falls under packaging that minimizes breakage, spills, and exposure; strict limits on dust-generating cargo containers apply
Transport Precautions: Keep containers sealed, upright, and protected from bumps that cause leaks; ensure transporters understand the fluoride and zirconium hazards before loading
Chemical Inventories: Major economies such as the United States, Europe, and Japan usually require this compound’s registration on national chemical inventory lists
Occupational Exposure Limit: OSHA, ACGIH, and most regulatory agencies set low worker exposure limits for fluoride dusts, usually at or under 2.5 mg/m3
Notification Obligations: Any significant releases or workplace exposures should be reported as per local health and safety laws
Use Restrictions: Regulations often require training for anyone handling bulk or high-risk uses, and personal protection must meet published government standards
