Material Safety Data Sheet NFPA HMIS Personal Protective Equipment 1 COR Health Hazard Fire Hazard 2 See Section 15. Section 1. Chemical Product and Company Identification Common Name/ Trade Name Manufacturer Commercial Name(s) Synonym Chemical Name Sodium Arsenite,.1N SPECTRUM CHEMICAL MFG. CORP. 14422 S. SAN PEDRO STREET GARDENA, CA 9248 Catalog Number(s). CAS# RTECS TSCA CI# S-222 Mixture. IN CASE OF EMERGENCY CHEMTREC (24hr) 8-424-93 Page Number: 1 TSCA 8(b) inventory: Arsenic trioxide; Sodium hydroxide; Sodium bicarbonate; Water Chemical Family Chemical Formula Supplier Oxide. (Oxidizing agent.) SPECTRUM CHEMICAL MFG. CORP. 14422 S. SAN PEDRO STREET GARDENA, CA 9248 CALL (31) 516-8 Section 2.Composition and Information on Ingredients Name CAS # Exposure Limits TWA (mg/m 3 ) STEL (mg/m 3 ) CEIL (mg/m 3 ) % by Weight 1) Arsenic trioxide 1327-53-3 1.97 2) Sodium hydroxide 131-73-2 2 1 3) Sodium bicarbonate 144-55-8 5 4) Water 7732-18-5 92 Toxicological Data on Ingredients Arsenic trioxide: ORAL (LD5): Sodium hydroxide LD5: LC5: Sodium bicarbonate: ORAL (LD5): Acute: 14.6 mg/kg [Rat.]. 31.5 mg/kg [Mouse]. Acute: 422 mg/kg [Rat].
Sodium Arsenite,.1N Page Number: 2 Section 3. Hazards Identification Potential Acute Health Effects Potential Chronic Health Effects Hazardous in case of skin contact (corrosive, irritant), of eye contact (irritant), of ingestion, of inhalation. Liquid or spray mist may produce tissue damage particularly on mucous membranes of eyes, mouth and respiratory tract. Skin contact may produce burns. Inhalation of the spray mist may produce severe irritation of respiratory tract, characterized by coughing, choking, or shortness of breath. Severe over-exposure can result in death. Non-corrosive for skin. Non-irritant for skin. Non-sensitizer for skin. Non-permeator by skin. Non-irritating to the eyes. Non-hazardous in case of ingestion. Non-hazardous in case of inhalation. CARCINOGENIC EFFECTS: Classified A1 (Confirmed for human.) by ACGIH [Arsenic trioxide]. MUTAGENIC EFFECTS: TERATOGENIC EFFECTS: DEVELOPMENTAL TOXICITY: PROVEN The substance is toxic to the reproductive system, gastrointestinal tract, cardiovascular system, central nervous system (CNS). Repeated or prolonged exposure to the substance can produce target organs damage. Repeated or prolonged contact with spray mist may produce chronic eye irritation and severe skin irritation. Repeated or prolonged exposure to spray mist may produce respiratory tract irritation leading to frequent attacks of bronchial infection. Repeated exposure to an highly toxic material may produce general deterioration of health by an accumulation in one or many human organs. Section 4. First Aid Measures Eye Contact Skin Contact Serious Skin Contact Inhalation Check for and remove any contact lenses. Immediately flush eyes with running water for at least 15 minutes, keeping eyelids open. Cold water may be used. Do not use an eye ointment. Seek medical attention. If the chemical got onto the clothed portion of the body, remove the contaminated clothes as quickly as possible, protecting your own hands and body. Place the victim under a deluge shower. If the chemical got on the victim's exposed skin, such as the hands : Gently and thoroughly wash the contaminated skin with running water and non-abrasive soap. Be particularly careful to clean folds, crevices, creases and groin. Cold water may be used. If irritation persists, seek medical attention. Wash contaminated clothing before reusing. Wash with a disinfectant soap and cover the contaminated skin with an anti-bacterial cream. Seek immediate medical attention. Allow the victim to rest in a well ventilated area. Seek immediate medical attention. Serious Inhalation Ingestion Serious Ingestion Evacuate the victim to a safe area as soon as possible. Loosen tight clothing such as a collar, tie, belt or waistband. If breathing is difficult, administer oxygen. If the victim is not breathing, perform mouth-to-mouth resuscitation. WARNING: It may be hazardous to the person providing aid to give mouth-to-mouth resuscitation when the inhaled material is toxic, infectious or corrosive. Seek immediate medical attention. Do not induce vomiting. Examine the lips and mouth to ascertain whether the tissues are damaged, a possible indication that the toxic material was ingested; the absence of such signs, however, is not conclusive. Loosen tight clothing such as a collar, tie, belt or waistband. If the victim is not breathing, perform mouth-to-mouth resuscitation. Seek immediate medical attention. Section 5. Fire and Explosion Data Flammability of the Product Auto-Ignition Temperature Flash Points Flammable Limits Products of Combustion Fire Hazards in Presence of Various Substances Non-flammable. Explosion Hazards in Presence of Various Substances Risks of explosion of the product in presence of mechanical impact: Risks of explosion of the product in presence of static discharge:
Sodium Arsenite,.1N Page Number: 3 Fire Fighting Media and Instructions Fire Hazards Explosion Hazards Section 6. Accidental Release Measures Small Spill Large Spill Dilute with water and mop up, or absorb with an inert dry material and place in an appropriate waste disposal container. If necessary: Neutralize the residue with a dilute solution of acetic acid. Corrosive liquid. Stop leak if without risk. Absorb with DRY earth, sand or other non-combustible material. Do not get water inside container. Do not touch spilled material. Use water spray curtain to divert vapor drift. Prevent entry into sewers, basements or confined areas; dike if needed. Call for assistance on disposal. Neutralize the residue with a dilute solution of acetic acid. Be careful that the product is not present at a concentration level above TLV. Check TLV on the MSDS and with local authorities. Section 7. Handling and Storage Precautions Storage Keep locked up Keep container dry. Do not ingest. Do not breathe gas/fumes/ vapour/spray. Never add water to this product In case of insufficient ventilation, wear suitable respiratory equipment If ingested, seek medical advice immediately and show the container or the label. Avoid contact with skin and eyes Corrosive materials should be stored in a separate safety storage cabinet or room. Section 8. Exposure Controls/Personal Protection Engineering Controls Personal Protection Personal Protection in Case of a Large Spill Exposure Limits Provide exhaust ventilation or other engineering controls to keep the airborne concentrations of vapors below their respective threshold limit value. Ensure that eyewash stations and safety showers are proximal to the work-station location. Face shield. Full suit. Vapor respirator. Be sure to use an approved/certified respirator or equivalent. Gloves. Boots. Splash goggles. Full suit. Vapor respirator. Boots. Gloves. A self contained breathing apparatus should be used to avoid inhalation of the product. Suggested protective clothing might not be sufficient; consult a specialist BEFORE handling this product. Sodium hydroxide CEIL: 2 (mg/m 3 ) from ACGIH [1995] Consult local authorities for acceptable exposure limits. Section 9. Physical and Chemical Properties Physical state and appearance Liquid. Odor Molecular Weight ph (1% soln/water) Basic. Taste Color Boiling Point The lowest known value is 1 C (212 F) (Water). Melting Point Critical Temperature Specific Gravity Weighted average: 1.5 (Water = 1) Vapor Pressure Vapor Density Volatility The highest known value is 17.535 mm of Hg (@ 2 C) (Water). The highest known value is.62 (Air = 1) (Water).
Sodium Arsenite,.1N Page Number: 4 Odor Threshold Water/Oil Dist. Coeff. Ionicity (in Water) Dispersion Properties Solubility See solubility in water. Easily soluble in cold water. Partially soluble in hot water. Section 1. Stability and Data Stability Instability Temperature Conditions of Instability Incompatibility with various substances Corrosivity The product is stable. Slightly reactive to reactive with oxidizing agents, acids. Non-corrosive in presence of glass. Corrosivity Polymerization Fumes in moist air. (Arsenic trioxide) No. Section 11. Toxicological Information Routes of Entry Toxicity to Animals Chronic Effects on Humans Other Toxic Effects on Humans Toxicity to Animals Chronic Effects on Humans other Toxic Effects on Humans Absorbed through skin. Eye contact. Inhalation. Ingestion. Acute oral toxicity (LD5): 14.6 mg/kg [Rat.]. (Arsenic trioxide). CARCINOGENIC EFFECTS: Classified A1 (Confirmed for human.) by ACGIH [Arsenic trioxide]. DEVELOPMENTAL TOXICITY: PROVEN The substance is toxic to the reproductive system, gastrointestinal tract, cardiovascular system, central nervous system (CNS). Hazardous in case of skin contact (corrosive, irritant), of ingestion, of inhalation. 7 Passes through the placental barrier in human. (Arsenic trioxide) Section 12. Ecological Information Ecotoxicity BOD5 and COD Products of Biodegradation Toxicity of the Products of Biodegradation Possibly hazardous short term degradation products are not likely. However, long term degradation products may arise. The products of degradation are more toxic.
Sodium Arsenite,.1N Page Number: 5 the Products of Biodegradation Section 13. Disposal Considerations Waste Disposal Section 14. Transport Information DOT Classification Identification Special Provisions for Transport DOT Section 15. Other Regulatory Information and Pictograms Federal and State Regulations California Proposition 65 Warnings Other Regulations California prop. 65: This product contains the following ingredients for which the State of California has found to cause cancer, birth defects or other reproductive harm, which would require a warning under the statute: Sodium Arsenite,.1N California prop. 65: This product contains the following ingredients for which the State of California has found to cause cancer which would require a warning under the statute: Arsenic trioxide Pennsylvania RTK: Arsenic trioxide; Sodium hydroxide Massachusetts RTK: Arsenic trioxide; Sodium hydroxide TSCA 8(b) inventory: Arsenic trioxide; Sodium hydroxide; Sodium bicarbonate; Water California prop. 65: This product contains the following ingredients for which the State of California has found to cause cancer which would require a warning under the statute: Arsenic trioxide OSHA: Hazardous by definition of Hazard Communication Standard (29 CFR 191.12). Other Classifications WHMIS (Canada) DSCL (EEC) CLASS D-1A: Material causing immediate and serious toxic effects (VERY TOXIC). CLASS D-2A: Material causing other toxic effects (VERY TOXIC). CLASS E: Corrosive liquid. R36/38- Irritating to eyes and skin. R45- May cause cancer. HMIS (U.S.A.) Health Hazard Fire Hazard Personal Protection 2 National Fire Protection Association (U.S.A.) Health 1 COR Flammability Specific hazard WHMIS (Canada) DSCL (Europe)
Sodium Arsenite,.1N Page Number: 6 TDG (Canada) ADR (Europe) Protective Equipment Gloves. Lab coat. Vapor respirator. Be sure to use an approved/certified respirator or equivalent. Wear appropriate respirator when ventilation is inadequate. Face shield. Section 16. Other Information MSDS Code References Other Special Considerations S222S Validated by Sonia Owen on 8/11/26. Verified by Sonia Owen. Printed 9/13/26. CALL (31) 516-8 Notice to Reader All chemicals may pose unknown hazards and should be used with caution. This Material Safety Data Sheet (MSDS) applies only to the material as packaged. If this product is combined with other materials, deteriorates, or becomes contaminated, it may pose hazards not mentioned in this MSDS. It shall be the user's responsibility to develop proper methods of handling and personal protection based on the actual conditions of use. While this MSDS is based on technical data judged to be reliable, Spectrum Quality Products, Inc. assumes no responsibility for the completeness or accuracy of the information contained herein.