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Chemical Name: Potassium hexahydroxyantimonate(V)
Chemical Formula: K[Sb(OH)6]
Appearance: White crystalline solid
Common Uses: This compound often appears in research labs and some niche industrial applications that involve antimony compounds. Potassium hexahydroxyantimonate(V) doesn’t show up in day-to-day consumer markets, so most people only cross paths with it in science or chemical handling roles.
Major Hazards: Exposure to dust might irritate the respiratory tract, eyes, and skin. Inhalation could lead to discomfort, coughing, or sore throat. Prolonged contact carries some risk due to antimony’s classification as a toxic substance. Swallowing even a small amount shouldn’t be dismissed; antimony salts became well-known for their toxic profile in mining and early industrial history.
Key Points: Irritant; toxic if ingested; respiratory hazard if inhaled as powder.
Main Ingredient: Potassium hexahydroxyantimonate(V) typically appears in pure form, with no significant stabilizers or additives.
CAS Number: 12208-13-8
Impurities: Occasional traces of potassium hydroxide or antimony oxides can result from production but usually don’t change the hazard profile.
Inhalation: Move to fresh air immediately, keep airways open, and monitor for breathing difficulties. A rinse with water may alleviate mild throat irritation.
Skin Contact: Remove contaminated clothing; wash affected area thoroughly with soap and water.
Eye Contact: Rinse cautiously with water for several minutes; remove contact lenses if present and easy to do.
Ingestion: Rinse mouth, do not induce vomiting, seek medical advice if a meaningful amount is swallowed.
Skin rash or persistent pain should push someone toward medical evaluation, especially if antimony sensitivity is known.
Suitable Extinguishing Media: Use water spray, foam, or dry agents if required, though the compound itself doesn’t burn. Most risk ties to containers or surroundings.
Specific Hazards: Heating could lead to toxic oxides of antimony; avoid inhaling any dust, smoke, or vapors produced.
Advice for Firefighters: Wear full protective gear and self-contained breathing apparatus; firefighters often lean heavily on these due to the unknowns surrounding decomposition products.
Personal Precautions: Avoid breathing dust, keep people without protective equipment away from the area.
Environmental Precautions: Keep powder out of drains, waterways, and soil; swept or spilled product can linger in the environment. Responsible cleanup matters, especially with antimony’s long persistence.
Cleanup Methods: Sweep up carefully, minimize airborne particles, place in clearly labeled, sealable containers for disposal through hazardous waste channels.
Safe Handling: Avoid dust generation and direct contact. Use in well-ventilated spaces. Respect for the compound grows with regular handling; storing it alongside compatible chemicals, away from reducers and acids, reduces risk.
Storage Conditions: Store in tightly closed containers in dry, cool, well-ventilated locations, away from sources of moisture and incompatible substances.
Engineering Controls: Local exhaust ventilation goes a long way to reduce dust exposure. Fume hoods or dedicated extraction fans prove their worth in confined lab settings.
Personal Protection: Safety goggles, chemical-resistant gloves, and lab coats will protect against splashes or dust. Respirators provide extra insurance where dust or airborne particulates build up.
Hygiene: Wash hands before eating or drinking, and avoid bringing contaminated hands to face or mouth.
Physical State: Solid
Color: White
Odor: Odorless
Solubility: Soluble in water
Melting Point: Data stays scarce, but stability persists at room temperature.
Other Traits: Powder and dust very light; easy to disperse inadvertently if not careful during transfer.
Chemical Stability: Stable under normal storage and handling conditions.
Incompatible Materials: Strong acids, strong reducers—these can alter or degrade the compound, potentially forming antimony oxides or releasing toxic gases.
Decomposition Products: Heating or reacting with strong acids can release antimony oxides and other noxious byproducts.
Health Effects: Antimony compounds tend to cause nausea, vomiting, diarrhea, and in chronic cases, skin rashes and respiratory irritation.
Target Organs: Long-term exposure could harm the liver or lungs. Industrial hygiene circles know antimony exposures have a history—especially in mining and smelting sectors.
Routes of Exposure: Dust inhalation and accidental ingestion pose the highest risk, but skin and eye contact shouldn’t be ignored.
Persistence: Antimony compounds linger in soil and water, potentially building up in living things. Local waterways can carry dissolved potassium hexahydroxyantimonate(V), and fish or plants may take up the metal.
Toxicity to Wildlife: Aquatic organisms show sensitivity, with sub-lethal effects at lower levels and greater harm at higher ones. The environmental track record draws concern in communities close to heavy industry or chemical disposal sites.
Waste Treatment: Never mix with household trash or pour down the drain. Waste requires collection by qualified hazardous waste services. Many local and national agencies set clear guidelines about antimony compound disposal.
Contaminated Packaging: Empty containers carry residues and need the same caution as full ones; cleaning or return to hazardous waste handlers maintains site safety.
Shipping Hazards: Many regions recognize antimony compounds as regulated materials due to toxicity. Labeling, secure containment, and clear paperwork stay critical.
Packaging: Keep in sealed, sturdy packaging to avoid accidental spillage or dust generation.
Antimony Listing: Regulatory bodies track antimony and its compounds closely as toxic substances. Threshold limits and exposure guidelines show up in workplace and environmental rules across North America, Europe, and Asia.
Worker Protection: Occupational exposure limits set by organizations like OSHA or ACGIH offer benchmarks. Adhering to these keeps both people and environments safer.
Community Right-to-Know: Chemical inventories and safety communications form the backbone of local right-to-know laws; anyone storing or using these compounds bears a responsibility to communicate risk to employees and neighbors.
