SIGMA-ALDRICH



                         Material Safety Data Sheet



                                               Date Printed: 08/NOV/2005

                                               Date Updated: 13/MAR/2004

                                                             Version 1.1

                                                 According to 91/155/EEC





1 - Product and Company Information



Product Name                   TIN(II) OXIDE, 99.99%

Product Number                 518174



Company                        Sigma-Aldrich Pty. Ltd.

                               12 Anella Avenue

                               Castle Hill NSW 2154

                               Australia

Technical Phone #              +61 2 9841 0555 (1800 800 097)

Fax                            +61 2 9841 0500 (1800 800 096)

Emergency Phone #              +44 8701906777 (1800 448 465)



2 - Composition/Information on Ingredients



Product Name                         CAS #        EC no       Annex I

                                                              Index Number

TIN(II) OXIDE                        21651-19-4   244-499-5   None



Formula             SnO

Molecular Weight    134.69 AMU

Synonyms            Stannous oxide * Tin oxide (OSHA) * Tin oxide

                    (SnO) * Tin oxide (Sn2O2) * Tin(II) oxide



3 - Hazards Identification





SPECIAL INDICATION OF HAZARDS TO HUMANS AND THE ENVIRONMENT

   Not hazardous according to Directive 67/548/EEC.



4 - First Aid Measures



AFTER INHALATION

   If inhaled, remove to fresh air. If breathing becomes difficult,

   call a physician.



AFTER SKIN CONTACT

   In case of contact, immediately wash skin with soap and copious

   amounts of water.



AFTER EYE CONTACT

   In case of contact with eyes, flush with copious amounts of

   water for at least 15 minutes. Assure adequate flushing by

   separating the eyelids with fingers. Call a physician.



AFTER INGESTION

   If swallowed, wash out mouth with water provided person is

   conscious. Call a physician.



5 - Fire Fighting Measures



EXTINGUISHING MEDIA

   Suitable: Water spray. Carbon dioxide, dry chemical powder, or

   appropriate foam.



SPECIAL RISKS

   Specific Hazard(s): Emits toxic fumes under fire conditions.



SPECIAL PROTECTIVE EQUIPMENT FOR FIREFIGHTERS

   Wear self-contained breathing apparatus and protective clothing

   to prevent contact with skin and eyes.



6 - Accidental Release Measures



PROCEDURE(S) OF PERSONAL PRECAUTION(S)

   Exercise appropriate precautions to minimize direct contact with

   skin or eyes and prevent inhalation of dust.



METHODS FOR CLEANING UP

   Sweep up, place in a bag and hold for waste disposal. Avoid

   raising dust. Ventilate area and wash spill site after material

   pickup is complete.



7 - Handling and Storage



HANDLING

   Directions for Safe Handling: Avoid inhalation. Avoid contact

   with eyes, skin, and clothing. Avoid prolonged or repeated

   exposure.



STORAGE

   Conditions of Storage: Keep tightly closed.



SPECIAL REQUIREMENTS: Air sensitive.



8 - Exposure Controls / Personal Protection



ENGINEERING CONTROLS

   Safety shower and eye bath. Mechanical exhaust required.



GENERAL HYGIENE MEASURES

   Wash thoroughly after handling.



PERSONAL PROTECTIVE EQUIPMENT

   Respiratory Protection: Wear dust mask.

   Hand Protection: Protective gloves.

   Eye Protection: Chemical safety goggles.



9 - Physical and Chemical Properties



Appearance              Physical State: Solid



Property                Value                 At Temperature or Pressure



pH                      N/A

BP/BP Range             N/A

MP/MP Range             N/A

Flash Point             N/A

Flammability            N/A

Autoignition Temp       N/A

Oxidizing Properties    N/A

Explosive Properties    N/A

Explosion Limits        N/A

Vapor Pressure          N/A





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SG/Density                N/A

Partition Coefficient     N/A

Viscosity                 N/A

Vapor Density             N/A

Saturated Vapor Conc.     N/A

Evaporation Rate          N/A

Bulk Density              N/A

Decomposition Temp.       N/A

Solvent Content           N/A

Water Content             N/A

Surface Tension           N/A

Conductivity              N/A

Miscellaneous Data        N/A

Solubility                N/A



10 - Stability and Reactivity



STABILITY

   Stable: Stable.

   Conditions to Avoid: Air.

   Materials to Avoid: Strong acids, Strong oxidizing agents.



HAZARDOUS DECOMPOSITION PRODUCTS

   Hazardous Decomposition Products: Nature of decomposition products

   not known.



HAZARDOUS POLYMERIZATION

   Hazardous Polymerization: Will not occur



11 - Toxicological Information



RTECS NUMBER: XQ3700000



SIGNS AND SYMPTOMS OF EXPOSURE

   Inorganic tin salts are poorly absorbed into the body. When

   parenterally administered tin salts are highly toxic. Tin oxide

   inhaled as a dust or fume leads to a benign pneumoconiosis with

   no sign of interference with pulmonary function. Deposited dust

   appears nodular with the particles being mostly extracelluar. No

   necrosis, foreign-body giant-cell reaction, or collagen

   formation has been seen. Tin salts that have gained access to

   the blood stream are highly toxic and produce neurologic damage

   and paralysis. With most common tin salts, the toxicity profile

   is complicated by hydrolysis in body fluids producing

   unphysiologic pH values. The reported symptoms of hyperemia,

   vascular changes with bleeding in the central nervous system,

   liver, heart, and other organs may be due to tin itself or to

   the unphysiological pH changes. Ingestion produces vomiting due

   to the gastric irritation from the activity and astringency of

   tin compounds. Injection of inorganic tin salts produces

   diarrhea, muscle paralysis, and twitching. To the best of our

   knowledge, the chemical, physical, and toxicological properties

   have not been thoroughly investigated.



ROUTE OF EXPOSURE

   Skin Contact: May cause skin irritation.

   Skin Absorption: May be harmful if absorbed through the skin.

   Eye Contact: May cause eye irritation.

   Inhalation: Material may be irritating to mucous membranes and

   upper respiratory tract. May be harmful if inhaled.

   Ingestion: May be harmful if swallowed.







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12 - Ecological Information



No data available.



13 - Disposal Considerations



SUBSTANCE DISPOSAL

   Contact a licensed professional waste disposal service to dispose

   of this material. Dissolve or mix the material with a combustible

   solvent and burn in a chemical incinerator equipped with an

   afterburner and scrubber. Observe all federal, state, and local

   environmental regulations.



14 - Transport Information



RID/ADR

   Non-hazardous for road transport.



IMDG

   Non-hazardous for sea transport.



IATA

   Non-hazardous for air transport.



15 - Regulatory Information



Not hazardous according to Directive 67/548/EEC.



SWITZERLAND

   SWISS POISON CLASS: 4



16 - Other Information



WARRANTY

   The above information is believed to be correct but does not

   purport to be all inclusive and shall be used only as a guide. The

   information in this document is based on the present state of our

   knowledge and is applicable to the product with regard to

   appropriate safety precautions. It does not represent any

   guarantee of the properties of the product. Sigma-Aldrich Inc.,

   shall not be held liable for any damage resulting from handling or

   from contact with the above product. See reverse side of invoice

   or packing slip for additional terms and conditions of sale.

   Copyright 2005 Sigma-Aldrich Co. License granted to make unlimited

   paper copies for internal use only.



DISCLAIMER

   For R&D use only. Not for drug, household or other uses.









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