MSDS Name:Tin (II) Oxide 99+% -100 Mesh
Synonym:Stannous Oxide; Tin Monoxid

EMERGENCY OVERVIEW
Air sensitive.
Potential Health Effects
Eye:
May cause eye irritation.
Skin:
May cause skin irritation.
Ingestion:
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. Ingested inorganic tin exhibits only moderate toxicity due to poor absorption and rapid tissue turnover. Ingestion of large amounts may cause gastrointestinal irritation, nausea, cramps, vomiting and diarrhea. May interfere with various enzyme systems.
Inorganic tin salts may cause systemic effects on the central nervous system, heart and liver.
Inhalation:
May cause respiratory tract irritation. Inhalation of fumes may cause metal fume fever, which is characterized by flu-like symptoms with metallic taste, fever, chills, cough, weakness, chest pain, muscle pain and increased white blood cell count.
Chronic:
Chronic exposure to tin oxide dusts and fumes may result in stannosis (benign pneumoconiosis).

Eyes: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin:
Get medical aid. Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Wash clothing before reuse.
Ingestion:
Do not induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid.
Inhalation:
Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:
Treat symptomatically and supportively.

General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use extinguishing media appropriate to the surrounding fire. Substance is noncombustible.
Extinguishing Media:
For small fires, use water spray, dry chemical, carbon dioxide or chemical foam. Substance is noncombustible; use agent most appropriate to extinguish surrounding fire.

General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Clean up spills immediately, observing precautions in the Protective Equipment section. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation.
Place under an inert atmosphere.

Handling:
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with skin and eyes. Keep container tightly closed. Avoid ingestion and inhalation. Handle under an inert atmosphere. Store protected from air.
Storage:
Store in a cool, dry, well-ventilated area away from incompatible substances. Do not expose to air. Store under an inert atmosphere.

Engineering Controls:
Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
Exposure Limits CAS# 21651-19-4: United Kingdom, WEL - TWA: (listed as tin inorganic compounds): 2 mg/m3 TWA (except SnH4, as Sn) United Kingdom, WEL - STEL: (listed as tin inorganic compounds): mg/m3 STEL (except SnH4, as Sn) United States OSHA: 2 mg/m3 TWA (as Sn) (listed under Tin inorga compounds).
Belgium - TWA: (listed as tin inorganic compounds): 2 mg/m3 VLE ( Sn) Malaysia: (listed as tin inorganic compounds): 2 mg/m3 TWA (as Sn except tin hydride) Netherlands: (listed as tin inorganic compounds): 2 mg/m3 MAC (as Spain: (listed as tin inorganic compounds): 2 mg/m3 VLA-ED (as Sn Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHAs eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.

Physical State: Powder
Color: silver-gray
Odor: None reported
pH: Not available.
Vapor Pressure: Negligible.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 1080 deg C
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: N/A
Explosion Limits, upper: N/A
Decomposition Temperature:
Solubility in water: insoluble in alcohol
Specific Gravity/Density:
Molecular Formula: OSn
Molecular Weight: 134.69

Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
High temperatures, incompatible materials, dust generation, exposure to air.
Incompatibilities with Other Materials:
Strong oxidizing agents.
Hazardous Decomposition Products:
Irritating and toxic fumes and gases, tin/tin oxides.
Hazardous Polymerization: Has not been reported.

RTECS#:
CAS# 21651-19-4: XQ3700000 LD50/LC50:
Not available.
Carcinogenicity:
TIN (II) OXIDE - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

Other No information available.

Dispose of in a manner consistent with federal, state, and local regulations.

IATA
Not regulated as a hazardous material.
IMO
Not regulated as a hazardous material.
RID/ADR
Not regulated as a hazardous material.

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: Not available.
Risk Phrases:
Safety Phrases:
S 24/25 Avoid contact with skin and eyes.
WGK (Water Danger/Protection)
CAS# 21651-19-4: No information available.
Canada
CAS# 21651-19-4 is listed on Canadas DSL List.
CAS# 21651-19-4 is not listed on Canadas Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 21651-19-4 is listed on the TSCA inventory.