1 April 2005

1. Identification of substance/preparation and company Product: DRI-DECON Company : Decon Laboratories Limited Conway Street, Hove, East Sussex, BN3 3LY, England Tél. : +44 (0) 1273 739241 Fax: +44 (0)1273 722088 Email: sales@decon.co.uk Web Site: www.decon.co.uk

2. Composition/information on ingredients A blend of highest quality surface active agents, alkalis, builders and stabilising agents. Contains <20% Sodium Metasilicate (Na2SiO3) - CAS No. 6834-92-0 - EINECS No. 229-912-9 Dri-Decon is a finely milled, dry white powder, having faint odour.

3. Hazards identification Xi - irritant May cause irritation to skin, especially if exposure is prolonged. May cause severe eye irritation. May cause irritation to respiratory system.

4. First-aid measures In case of contact with eyes, rinse immediately with plenty of clean, flowing water and seek immediate medical attention. In case of contact with skin, rinse immediately with plenty of clean, flowing water. Seek medical attention if there is persistent irritation. If ingested, drink copious amounts of fresh water and seek immediate medical attention. Do not promote vomiting.

5. Fire-fighting measures Use extinguisher suitable to the cause of the fire.

6. Accidental release measures Transfer to a suitable container by scoop or similar implement. Dispose of in accordance with local authority guidelines. Small spillages may be flushed away with plenty of water to a drain or sewer.

7. Handling and storage Avoid contact with skin and eyes and avoid breathing dust. Use glass, ceramic, plastic (not polycarbonate) or stainless steel vessels for working solutions Keep the product dry. Store at ambient temperature, out of direct sunlight, sealed in the container in which it is supplied, and away from strong acids and aluminium. Stored correctly, Dri-Decon has a shelf life of 5 years.

8. Exposure controls/personal protection Wear eye protection, rubber gloves and a dust mask when handling. Clothes may be protected with man-made fibre over-garments.

9. Physical and chemical properties Melting point 880ºC. Boiling point Not applicable. Bulk Density 0.86 - 0.96 grammes per cc. Vapour pressure Not applicable. Evaporation rate Not applicable. Viscosity Not applicable. Solubility Totally soluble in water. pH value > pH13. Air contamination limit 1.5mg per cubic metre, expressed as Na2O

10. Stability and reactivity Flash point Not applicable. Ignition temperature Does not burn or help other materials to burn. Explosion limits Not applicable. Thermal decomposition Partial decomposition at very high temperatures. Hazardous thermal decomposition products Carbon dioxide (CO2). Hazardous reactions May react violently with strong acids. May produce hydrogen in contact with aluminium. Further information Will tend to corrode non-ferrous metals, notably aluminium and zinc.

11. Toxicological information Dri-Decon should not be ingested. Toxicity is low, but high alkalinity is likely to be harmful. No known evidence of carcinogenicity, mutagenicity or reproductive toxicity.

12. Ecological information Acceleration of weed and algae growth by phosphates. Dri-Decon is biodegradable. Ready biodegradability by OECD 301E (ISO method 7287 - 1986(E)).

13. Disposal considerations Dispose of in accordance with regional and/or national regulations.

14. Transport information UN Number None IMDG code None ADR/RID None OACI/IATA None Shipping name As commercial name

15. Regulatory information Classification Irritant Symbol Xi Risk phrases R36/37/38 Safety phrases S22, S24/25 and S26

16. Other information Not suitable for domestic applications.

Every effort has been made to ensure that the information contained in this Material Safety Data Sheet is accurate, but we cannot accept liability for any loss, injury or damage which may result from its use. Data given in this Material Safety Data Sheet is solely for guidance in the safe handling, storage and use of the product by customers and does not form part of any specification. DECON and DECOMATIC are the Trade Mark of Decon Laboratories Limited, registered in the U.K. and abroad.