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Investment materialEC Safety Data SheetBEGOBremer Goldschlägerei Wilh. Herbst GmbH & Co.Wilhelm-Herbst-Strasse 1D-28359 BremenTelephone: 0421 - 20 28 0Fax: 0421 - 20 28 1001. Designation of substance/preparation and company nameInformation on the productTrade name:Investment material:BegoForm ®Bellatherm ®Wiroplus ®BellaCerBellavest ® SHBellasun ® BellaStarBellavest ® T Tancovest ®Wiroplus ® N Wiroplus ® S WiroquickBellaStar ® XLWiroFineWirovest ®Information on manufacturer/supplierManufacturer/supplier:Street/P.O. box:Nat./postal code/town:Telephone:Fax:Dept. providinginformation:Emergency telephone:BEGO Bremer Goldschlägerei Wilh. Herbst GmbH & Co.Wilhelm-Herbst-Strasse 1D-28359 Bremen0421 – 20 28 00421 – 20 28 100Material Development0421 – 20 28 02. Composition / data on componentsChemical characterisation (specific substance)SiO2, ammonium dihydrogen phosphate, magnesium oxide, aluminium oxide, inorg. colouringsChemical characterisation (preparation)Description:Mixture of quartz and cristobalite sands and powder as well as magnesiumoxide, ammonium dihydrogen phosphate, aluminium oxide and inorganiccolouring components for use as investment materials in dental technologyHazardous components:fine quartz dust3. Possible risksSpecial indications of risk for people and environment (possibly R provisions)In accordance with 91/155/EEC, 10.11.2004 Page 1–5

Investment materialHarmful if inhaled. Contains silicogenic dust, may lead to silicosis in case of long-term impact dueto inhalation.4. First aid measuresAfter inhalingSupply of fresh air or oxygen; in case of long-term impact, obtain medical assistance.After skin contactWash skin with water.After contact with eyesRinse eyes under running water with eyelids open for at least 10 minutes and consult a physician.After swallowingInduce vomiting; obtain medical assistance.5. Fire-fighting measuresSuitable fire extinguishing agentsNo restriction in case of fire in surrounding area.Special hazards due to the substance, its combustion products or resulting gases.None6. Measures in case of unintentional releasePersonal precautionary measuresEliminate dust-freeEnvironmental protection measuresNot applicableProcedure for cleaning/collectingCollect mechanically and wipe up with water7. Handling and storageHandlingInstructions regarding safe handling:Conform with customary precautionary measures for handling dust-like materials, comply withdust protection measures.Instructions on fire and explosion protection:Not applicableStorageRequirements regarding storage rooms and containers:Store in a cool, dry place. (Room temperature is adequate) Keep containers closed.In accordance with 91/155/EEC, 10.11.2004 Page 2 of 5

Investment material8. Exposure limitation and personal safety equipmentAdditional points regarding design of technical facilitiesOpen bag with scissors while avoiding dust; use suction extraction system.Components with workplace-related limit values that must be monitoredCAS number Designation of substance Type Value Unit Peak limit cat.quartz dust MPWC 0.15* mg/m 3 * =1=* dust fraction capable of penetrating alveolar ducts (= fine dust)Personal safety equipmentGeneral safety and hygienic measuresKeep away from food.Do not eat, drink or smoke while working.Wash hands before breaks and at the end of work.Breathing protectionTake dust protection measures; ventilate work area well.Hand protectionNot applicableEye protectionWear safety goggles.Body protectionWear work smock.9. Physical and chemical propertiesExternal characteristicsForm:powderColour:white or colouredOdour:odourlessSafety-related datapH value: 5-7 (in 80% aqueous solution)Flash point: not applicableRisk of explosion: not applicableVapour pressure: not applicableBulk density: 1.2-1.5 g/cm 3 (at room temperature)Aqueous solubility: insoluble when setFurther information: powder is hygroscopic, absorbs water and hardens under heatdevelopment like plasterIn accordance with 91/155/EEC, 10.11.2004 Page 3 of 5

Investment material10. Stability and reactivityThermal decomposition:Not applicableConditions to be avoided:Avoid contact between non-set powder and water before use.Hazardous decomposition products:When the set investment material is preheated properly in the preheating furnace, approx. 1%ammonia by weight (MPWC value 14 mg/m 3 ) results. Suction-extract vapours and dischargeoutdoors.11. Information on toxicologyAcute toxicityNot knownExperience with peopleRisk of silicosis in the event of long-term effect of dust12. Information on ecologyWater hazard category: WGK 0 (self-classification)13. Instructions on disposalProductRecommendation:Allow powder residue to set with water. Set investment material can be disposed of together withdomestic waste while complying with the local official regulations.PackagingRecommendation:Rinse out empty foil bags with water to cause adhering dust residues to set.14. Information on transportInvestment material does not fall under the regulations for hazardous goods in transit.15. RegulationsIdentification in accordance with EC directivesHazardous components for labelling: Contains quartz dust, please do not inhale.National regulationsWater endangerment category:WGK 0 (self-classification)In accordance with 91/155/EEC, 10.11.2004 Page 4 of 5

Investment materialLimit values for exposure at workplace:MPWC for quartz and cristobalite dust: 0.15 mg/m 3 AMPWC for ammonia (decomposition product): 14 mg/m 3Miscellaneous provisions, restrictions and prohibitory regulations:The national laws must be complied with for the following substances /components / decomposition products:fine quartz and cristobalite dustammonia as thermal decomposition productFurther national laws may be of significance.16. Miscellaneous dataData Sheet issued by:Material Development DepartmentContactDr. Martin SchlüterRevised on: 10/11/2004 Replaces: 11/11/2002The data provided here describe our product with respect to any safety requirements in accordancewith our current know-how and findings. Guarantees regarding qualities or properties cannot be derived fromthese data.In accordance with 91/155/EEC, 10.11.2004 Page 5 of 5