SAFETY DATA SHEET - LagunaClay.com

1 SAFETY data SHEET1. IdentificationProduct identifierVOLCLAY 325 Other means of identificationNot (s)Smectite * Bentonite * Bentonite, Sodian * Bentonite, Calcian * Sodium-activated Bentonite *MontmorilloniteRecommended useBentonite has a variety of uses. It can be used as a rheology modifier, binding agent, adsorbent,hydraulic-barrier, and restrictionsNone informationManufacturerAmerican Colloid CompanyAddress2870 Forbs AvenueCompany nameWebsiteTelephoneGeneral Information800 426-5564 Emergency phone numberNot Estates, IL (US, Canada, Mexico) 1 760 476 3962 Americas2. Hazard(s) identificationNot hazardsNot hazardsNot hazardsNot defined hazardsLabel symbolSignal wordNot statementNot (s) not otherwiseclassified (HNOC)None Composition/information on ingredientsSubstancesCAS number%Chemical nameCommon name and synonymsSmectiteBentoniteBentonite, SodianBentonite, CalcianSodium-activated BentoniteMontmorillonite1302-78-9 Bentonite100 Bentonite is a UVCB substance sub-type 4.

2 The purity of the product is 100 % w/w. Bentonite is composed mainly of smectite groupminerals but the composition is varied, as expected for a UVCB substance, and other mineral constituents will be present in small andvarying amounts. These minor constituents are not relevant for classification and / 7 Material name: VOLCLAY 3254589 Version #: 26 Revision date: 07-March-2014 Print date: 07-March-2014 SDS Clay Company800-452-4862 Composition commentsBentonite is composed mainly of smectite group minerals but the composition is varied, asexpected for a UVCB substance, and other mineral constituents will be present in small andvarying amounts. These minor constituents are not relevant for classification and labelling. Thepurity of the product is 100% w/w. Impurities are not applicable for a UVCB substance. Thisproduct contains 10% total crystalline silica.

3 The respirable crystalline silica as determined by theSWeRF method is <1% w/w. Details about the SWeRF method are available First-aid measuresInhalationNo specific first aid measures noted. Move to fresh air. Call a physician if symptoms develop contactNo specific first aid measures noted. Wash skin with soap and water. Get medical attention ifirritation develops and contactNo specific first aid measures noted. Flush thoroughly with water. If irritation occurs, get specific first aid measures noted. Rinse mouth thoroughly. Get medical attention if anydiscomfort importantsymptoms/effects, acute anddelayedDust in the eyes will cause of immediatemedical attention and specialtreatment neededProvide general supportive measures and treat informationNo hazards which require special first aid measures. Provide general supportive measures andtreat Fire-fighting measuresSuitable extinguishing mediaUse any media suitable for the surrounding extinguishingmediaNot applicable, hazards arising fromthe chemicalNone known.

4 The product itself does not protective equipmentand precautions for firefightersNone can be slippery when fire hazardsThis material will not Accidental release measuresPersonal precautions,protective equipment andemergency proceduresNo special precautions are necessary beyond normal good hygiene practices. See Section 8 foradditional personal protection advice when handling this and materials forcontainment and cleaning upAvoid the generation of dusts during clean-up. Collect powder using special dust vacuum cleanerwith particle filter or carefully sweep into closed precautionsNo special environmental precautions required. Prevent further leakage or spillage if safe to do Handling and storagePrecautions for safe handlingKeep formation of airborne dusts to a minimum. Provide appropriate exhaust ventilation at placeswhere dust is formed.

5 In case of insufficient ventilation, wear suitable respiratory for safe storage,including any incompatibilitiesStore in a dry area. Keep the container dry. No special restrictions on storage with other Exposure controls/personal protectionOccupational exposure limitsUS. OSHA Table Z-1 Limits for Air Contaminants (29 CFR )ValueConstituentsFormTypePEL5 mg/m3 Respirable OR NUISANCEDUSTS(CAS SEQ250)15 mg/m3 Total OSHA Table Z-3 (29 CFR )ValueConstituentsFormTypeTWA5 mg/m3 Respirable OR NUISANCEDUSTS(CAS SEQ250)2 / 7 Material name: VOLCLAY 3254589 Version #: 26 Revision date: 07-March-2014 Print date: 07-March-2014 SDS Clay Company800-452-4862US. OSHA Table Z-3 (29 CFR )ValueConstituentsFormType15 mg/m3 Total millions ofparticleTotal millions ofparticleRespirable ACGIH Threshold Limit ValuesValueConstituentsFormTypeTWA3 mg/m3 Respirable OR NUISANCEDUSTS(CAS SEQ250)10 mg/m3 Inhalable limit valuesNo biological exposure limits noted for the ingredient(s).

6 Appropriate engineeringcontrolsUse process enclosures, local exhaust ventilation, or other engineering controls to control airbornelevels below recommended exposure limits. If engineering measures are not sufficient to maintainconcentrations of dust particulates below the OEL, suitable respiratory protection must be protection measures, such as personal protective equipmentEye/face protectionWear dust-resistant SAFETY goggles where there is danger of eye protectionNo protection is ordinarily required under normal conditions of special protective equipment required. Normal work clothing (long sleeved shirts and longpants) is protectionUse a particulate filter respirator for particulate concentrations exceeding the OccupationalExposure hazardsNot hygieneconsiderationsUse good industrial hygiene practices in handling this Physical and chemical propertiesAppearanceLump, granular or fine thresholdNot - 11 Melting point/freezing point> 842 F (> 450 C) / Not boiling point and boilingrangeNot pointNot rateNot (solid, gas)This product is not flammability or explosive limitsFlammability limit - lower(%)Not limit - upper(%)Not limit - lower (%)Not limit - upper (%)Not pressureNot densityNot g/cm Solubility(ies)Solubility (water)< mg/lPartition coefficient(n-octanol/water)Not / 7 Material name: VOLCLAY 3254589 Version #: 26 Revision date.

7 07-March-2014 Print date: 07-March-2014 SDS Clay Company800-452-4862 Auto-ignition temperatureNot temperature> 932 F (> 500 C)ViscosityNot temperatureNot informationBulk - g/cm Explosive limitNot propertiesNot explosiveExplosivityNot extensionNot (flash back)Not (Heat ofcombustion)Not (Train fire)Not classNot point classNot flammableMolecular formulaUVCB SubstanceMolecular weightNot volatile0 %pH in aqueous - 11 Specific gravityNot (Weight %)0 %10. Stability and reactivityReactivityNot stabilityStable at normal of hazardousreactionsWill not to materialsNone Toxicological informationInformation on likely routes of exposureIngestionNot classified. Inhalation of dusts may cause respiratory contactNot contactNot classified. Dust in the eyes will cause related to thephysical, chemical andtoxicological characteristicsNone on toxicological effectsAcute toxicityNot ResultsProductSpeciesBentonite (CAS 1302-78-9)LC50 RatInhalationAcute> mg/l, 4 hrOECD 436LD50 RatOral> 2000 mg/kgOECD 425 Skin corrosion/irritationNot eye damage/eyeirritationNot classified.

8 Mild irritant to eyes (according to the modified Kay & Calandra criteria)4 / 7 Material name: VOLCLAY 3254589 Version #: 26 Revision date: 07-March-2014 Print date: 07-March-2014 SDS Clay Company800-452-4862 Respiratory or skin sensitizationRespiratory sensitizationNot sensitizationNot cell mutagenicityNot carcinogenicity data available for this product. Sepiolite was evaluated by IARC as class 3("Cannot be classified as to carcinogenicity to humans"). Based on read-across with sepiolite,bentonite was assessed as non-carcinogenic. Therefore classification of bentonite forcarcinogenicity is not toxicityNot target organ toxicity -single exposureNot target organ toxicity -repeated exposureNot hazardNot Ecological informationEcotoxicityProductTest ResultsSpeciesBentonite (CAS 1302-78-9)EC50 Crustacea> 100 mg/l, 48 hoursDaphniaEC50 Other> 100 mg/l, 72 hoursFreshwater algaeLC5016000 mg/l, 96 hoursFreshwater fish2800 - 3200 mg/l, 24 hoursMarine water mg/l, 96 hoursCoon stripe shrimp (Pandalus danae) mg/l, 96 hoursDungeness or edible crab (Cancermagister)LC50 Fish19000 mg/l, 96 hoursRainbow trout,donaldson trout(Oncorhynchus mykiss)

9 Persistence and degradabilityNot relevant for inorganic substancesBioaccumulative potentialWill not in soilBentonite is almost insoluble and thus presents a low mobility in most in generalThe product has poor adverse effectsNo other adverse environmental effects ( ozone depletion, photochemical ozone creationpotential, endocrine disruption, global warming potential) are expected from this Disposal considerationsDisposal instructionsDispose in accordance with all applicable waste codeNot from residues / unusedproductsDispose of in accordance with local packagingStore containers and offer for recycling of material when in accordance with the local Transport informationDOTNot regulated as dangerous regulated as dangerous regulated as dangerous in bulk according toAnnex II of MARPOL 73/78 andthe IBC Code15. Regulatory informationUS federal regulationsCERCLA Hazardous Substance List (40 CFR )Not / 7 Material name: VOLCLAY 3254589 Version #: 26 Revision date: 07-March-2014 Print date: 07-March-2014 SDS Clay Company800-452-4862US.

10 OSHA Specifically Regulated Substances (29 CFR )Not Amendments and Reauthorization Act of 1986 (SARA)Hazard categoriesImmediate Hazard - NoDelayed Hazard - NoFire Hazard - NoPressure Hazard - NoReactivity Hazard - NoSARA 302 Extremelyhazardous substanceNoSARA 311/312 HazardouschemicalNoSARA 313 (TRI reporting)Not federal regulationsClean Air Act (CAA) Section 112 Hazardous Air Pollutants (HAPs) ListNot Air Act (CAA) Section 112(r) Accidental Release Prevention (40 CFR )Not Drinking Water Act(SDWA)Not and DrugAdministration (FDA)Total food additiveDirect food additiveGRAS food additiveUS state regulationsUS. Massachusetts RTK - Substance ListNot New Jersey Worker and Community Right-to-Know ActNot Rhode Island RTKNot California Proposition 65 Not InventoriesCountry(s) or regionInventory nameOn inventory (yes/no)*YesAustraliaAustralian Inventory of Chemical Substances (AICS)YesCanadaDomestic Substances List (DSL)NoCanadaNon-Domestic Substances List (NDSL)YesChinaInventory of Existing Chemical Substances in China (IECSC)YesEuropeEuropean Inventory of Existing Commercial ChemicalSubstances (EINECS)NoEuropeEuropean List of Notified Chemical Substances (ELINCS)NoJapanInventory of Existing and New Chemical Substances (ENCS)YesKoreaExisting Chemicals List (ECL)YesNew ZealandNew Zealand InventoryYesPhilippinesPhilippine Inventory of Chemicals and Chemical Substances(PICCS)YesUnited States & Puerto Rico Toxic Substances Control Act (TSCA)