SIGMA-ALDRICH



                         Material Safety Data Sheet



                                               Date Printed: 02/NOV/2005

                                               Date Updated: 14/MAR/2004

                                                             Version 1.2

                                                 According to 91/155/EEC



Classified as Hazardous according to the criteria of EU Annex 1 and

NOHSC.



1 - Product and Company Information



Product Name                   BUTYLTIN HYDROXIDE OXIDE HYDRATE, 97%

Product Number                 344931



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

BUTYLTIN HYDROXIDE OXIDE HYDRATE     None        218-880-1   None



Formula             C4H10O2Sn

Molecular Weight    208.81 AMU

Synonyms            1-Butanestannonic acid * Butylhydroxytin oxide *

                    Butylstannoic acid * Butyltin hydroxide oxide



3 - Hazards Identification



SPECIAL INDICATION OF HAZARDS TO HUMANS AND THE ENVIRONMENT

   Irritating to eyes, respiratory system and skin.





4 - First Aid Measures



AFTER INHALATION

   If inhaled, remove to fresh air. If not breathing give

   artificial respiration. If breathing is difficult, give oxygen.



AFTER SKIN CONTACT

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

   amounts of water.



AFTER EYE CONTACT

   In case of contact, immediately flush eyes with copious amounts

   of water for at least 15 minutes.



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)

   Wear respirator, chemical safety goggles, rubber boots, and

   heavy rubber gloves.



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: Do not breathe dust. Avoid contact

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

   exposure.



STORAGE

   Conditions of Storage: Keep tightly closed.



SPECIAL REQUIREMENTS: Hygroscopic.



8 - Exposure Controls / Personal Protection



ENGINEERING CONTROLS

   Safety shower and eye bath. Mechanical exhaust required.



GENERAL HYGIENE MEASURES

   Wash thoroughly after handling.



EXPOSURE LIMITS - DENMARK

            Source            Type      Value

            OEL               TWA       0.1 mg/m3

Remarks: SKIN



EXPOSURE LIMITS - UNITED KINGDOM

            Source            Type      Value

            OEL               TWA       0.1MG(SN)/M3

            OEL               STEL      0.2 mg(Sn)/m3

Remarks: Skin



PERSONAL PROTECTIVE EQUIPMENT

   Respiratory Protection: Government approved respirator.

   Hand Protection: Compatible chemical-resistant gloves.

   Eye Protection: Chemical safety goggles.



9 - Physical and Chemical Properties



Appearance              Physical State: Solid







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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

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: Moisture.

   Materials to Avoid: Strong oxidizing agents.



HAZARDOUS DECOMPOSITION PRODUCTS

   Hazardous Decomposition Products: Tin/tin oxides Carbon monoxide,

   Carbon dioxide.



HAZARDOUS POLYMERIZATION

   Hazardous Polymerization: Will not occur



11 - Toxicological Information



RTECS NUMBER: WH6770000



ACUTE TOXICITY



   LD50

   Intravenous

   Mouse

   180 MG/KG



SIGNS AND SYMPTOMS OF EXPOSURE

   To the best of our knowledge, the chemical, physical, and

   toxicological properties have not been thoroughly investigated.



ROUTE OF EXPOSURE

   Skin Contact: Causes skin irritation.

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

   Eye Contact: Causes eye irritation.

   Inhalation: May be harmful if inhaled. Material is irritating to

   mucous membranes and upper respiratory tract.





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   Ingestion: May be harmful if swallowed.



CHRONIC EXPOSURE - CARCINOGEN

   Result: This product is or contains a component that is not

   classifiable as to its carcinogenicity based on its IARC, ACGIH,

   NTP, or EPA classification.



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



CLASSIFICATION AND LABELING ACCORDING TO EU DIRECTIVES

   INDICATION OF DANGER: Xi

     Irritant.

   R-PHRASES: 36/37/38

     Irritating to eyes, respiratory system and skin.

   S-PHRASES: 26-37/39

     In case of contact with eyes, rinse immediately with plenty of

     water and seek medical advice. Wear suitable gloves and

     eye/face protection.



COUNTRY SPECIFIC INFORMATION



Germany

   WGK: 1



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.





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DISCLAIMER

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









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