Hydrofluosilicic Acid
Safety Procedures
Safety should be in the forefront of everyone's mind when handling hazardous products. When an accident or emergency occurs, it is very important to know what safety procedures should be used. We offer safety training and assistance to develop safety programs for your facility. Your health and safety is very important to us!
Physical Data
Vapor Pressure: N/A
Solubility in Water: Complete
Appearance & Odor: Colorless to pale yellow with a pungent, irritating odor

Health Hazards
Eyes: Corrosive. Contact may cause severe irritation, eye burns and permanent eye damage. Immediately move victim away from exposure and into fresh air. If irritation or redness develops, flush eyes with clean water and seek immediate medical attention. For direct contact, immediately hold eyelids apart and flush the affected eye(s) with clean water for at least 20 minutes. Seek medical attention.
Skin: Corrosive. Contact may cause severe irritation, skin burns, and permanent skin damage. Immediately flush affected area(s) with large amounts of water for at least 15 minutes while removing contaminated shoes, clothing and constricting jewelry. If skin surface is damaged, apply a clean dressing and seek immediate medical attention. If skin surface is not damaged, cleanse the affected area(s) thoroughly by washing with mild soap and water. If irritation or redness develops, seek immediate medical attention.
Inhalation: Corrosive. Harmful if inhaled. May cause severe irritation and burns of the nose, throat, and respiratory tract. Any personnel in area should wear a NIOSH approved air supplied acid suit. Immediately move victim away from exposure and into fresh air. If respiratory symptoms or other symptoms of exposure develop, seek immediate medical attention.
Ingestion: Corrosive and highly toxic. Harmful or fatal if swallowed. May cause severe irritation and burns of the mouth, throat and digestive tract. **Do not induce vomiting. Corrosive material. Acid burns.** If victim has any breathing difficulties, call for emergency help immediately. If victim is conscious and alert, immediately rinse mouth with water and dilute the ingested material by giving one glass of milk or water to drink; 1/2 glass to children under 5. Call a physician or poison center. If possible, do not leave victim unattended.
Fire & Explosion Hazards
Flammable levels: N/A
Flash Point: None
Extinguishing Media: For fires in area, use appropriate media such as water spray, dry chemical, carbon dioxide, alcohol foam.
Special Procedures: Evacuate area of unprotected people. Wear protective clothing including NIOSH approved SCBA.

Reactivity
Stability: Stable under proper conditions of storage and handling
Materials to Avoid: Strong oxidizing agents, strong alkalis, glass and ceramics. Some metals react with solutions of the acid to form explosive hydrogen gas.
Conditions to Avoid: Toxic and corrosive gas or fumes can be released on heating.

Spill or Leak Procedures
Spills: Stay upwind and away from spill/release. Notify persons downwind of spill/release. For a small spill, isolate immediate hazard area and keep unauthorized personnel out. Avoid skin contact. Stop spill/release if it can be done with minimal risk. Wear appropriate protective equipment, including respiratory protection, as conditions warrant. Prevent spilled material from entering sewers, storm drains, other unauthorized confined treatment drainage systems. Dike far ahead of spill for later recovery or disposal. Notify fire authorities and appropriate federal, state, and local agencies.
Disposal: This material, if discarded as produced, is not a RCRA "listed" hazardous waste. If the liquid waste has a pH of less than 2, this product would be considered as a "characteristic" hazardous waste (corrosive - D002) under 40 CFR 261.22. Use which results in chemical or physical change or contamination may subject it to regulation as a listed hazardous waste. Along with properly characterizing all waste materials, consult state and local regulations regarding the proper disposal of this material.
Employee Protection
Respiratory: A NIOSH-approved air-purifying respirator with Type 95 particulate filter may be used under conditions where airborne concentrations are expected to exceed exposure limits. If hydrogen fluoride is present, a NIOSH approved air-purifying respirator with full face hydrogen fluoride cartridge may be used. Protection provided by air purifying respirators is limited. Use a positive pressure air-supplied respirator if there is potential for an uncontrolled release, exposure levels are not known, or any other circumstances where air-purifying respirators may not provide adequate protection. A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements must be followed whenever workplace conditions warrant a respirator's use.
Eye: The use of a face shield and/or chemical goggles to safeguard against potential eye contact, irritation or injury is recommended. Wear a face mask that provides both splash and impact protection for face and eyes when using respiratory protection described above.
Ventilation: Maintain adequate ventilation. Do not use in closed or confined space.
Other: Eyewash station & safety shower. Thoroughly clean shoes and wash contaminated clothing before reuse. It is recommended that impervious clothing be worn when skin contact is possible.
We are providing this data for informational purposes only. If a person comes in contact with any of the chemicals mentioned, it is imperative to contact your local emergency personnel and/or a physician. This information is intended only as guidance for appropriate precautionary handling of the material and is believed to be accurate. Industrial Resources provides no guarantee of the accuracy or completeness of the data and shall not be liable for any damages. Users of these products are responsible for investigating and verifying the precautions and dangers involved in the application that they have chosen. Federal, state, municipal, and insurance requirements, and national safety codes must be followed and are not to be confused with the precautionary data.
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