ALCONOX

SECTION 2: Hazards identification

OSHA EMERGENCY OVERVIEW Granular powder, airborne dust particles are harmful and irritating to respiratory tract. Contact with eyes and skin may cause irritation.

Hazard pictograms

for this product XI,XN None Note: Transportation information provided is for reference only. Client is urged to consult CFR 49 parts 100 — 177, IMDG, IATA, EC, Canadian TDG, and United Nations TDG information manuals for detailed regulations and exceptions covering specific container sizes, packaging and materials and methods of shipping. MATERIAL SAFETY DATA SHEET PRODUCT NAME: ALCONOX October 8, 2003 Page 4 of 4 SECTION 15-— REGULATORY INFORMATION TSCA (Toxic Substances Control Act): Components of this product are listed on the TSCA inventory SARA TITLE Ill (Superfund Amendments and Reauthorization Act) 311/312 Hazard Categories Acute Health 313 Reportable Ingredients None CERCLA (Comprehensive Response Compensation and Liability Act) (a) The Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) has notification requirements for releases or spills to the environment of the Reportable Quantity (RQ for this mixture = 6,000 Ibs) or greater amounts, according to 40 CFR 302 CPR (Canadian Controlled Products Regulations) This product has been classified in accordance with the hazard criteria of the Controlled Products Regulations and the MSDS contains all the information required by the Controlled products Regulations EINECS (European Inventory of Existing Commercial Chemical Substances) Components of this product are on the European Inventory of Existing Commercial Chemical substances AICS (Australian Inventory of Chemical Substances) Components of this product are on the Australian Inventory of Chemical substances EC Risk Phrases

Potential health effects

INHALATION: Breathing airborne particles or dust from mixing, spraying, sanding, grinding, etc., may cause irritation to the res piratory tract SKIN: None expected, however, prolonged contact may cause Irritation EYES: Contact with eyes may cause irritation INGESTION: May cause gastric distress, stomach pains, vomiting and diarrhea CARCINOGENICITY NTP? No IARC (MONOGRAPHS)? No OSHA REGULATED? No MATERIAL SAFETY DATA SHEET PRODUCT NAME: ALCONOX Page 2 of 4 October 8, 2003 SECTION 4— FIRST AID MEASURES INHALATION: Remove affected person to fresh air; if symptoms persist seek medical attention SKIN: Remove contaminated clothing; wash affected area with soap and water; launder contaminated clothing before reuse; if irritation persists seek medical attention EYES: Remove contact lenses. Flush eyes with clear running water for 15 minutes while holding eyelids open; if irritation persists, seek medical attention INGESTION: Give two glasses of water for dilution; DO NOT induce vomiting SECTION 5 — FIRE FIGHTING MEASURES FLASH POINT (METHOD USED) FLAMMABLE LIMITS LEL NOT APPLICABLE VEL NOT APPLICABLE Non-flammable AUTOIGNITION TEMPERATURE: Not Determined | NFPA CLASS: none GENERAL HAZARDS: Product is not considered flammable or combustible. Products of combustion include compounds of carbon, hydrogen and oxygen, including carbon monoxide. EXTINGUISHING MEDIA: Carbon dioxide, water, water fog, dry chemical, chemical foam FIRE FIGHTING PROCEDURES: NONE UNUSUAL FIRE AND EXPLOSION HAZARDS; NONE HAZARDOUS COMBUSTION PRODUCTS: Smoke, fumes, oxides of carbon SECTION 6 —- ENVIRONMENTAL RELEASE MEASURES STEPS TO BE TAKEN IN CASE MATERIAL IS RELEASED OR SPILLED: Confine and segregate product for reuse; place material into approved containers for disposal; for spills in excess of allowable limits (RQ) notify the National Response Center @ (800) 424-8802; refer to CERCLA 40 CFT 302 for detailed instructions SECTION 7— HANDLING AND STORAGE PRECAUTIONS TO BE TAKEN IN HANDLING AND STORAGE: Keep container closed when not in use; protect containers from abuse; store containers in cool, dry area. Keep this and other chemicals out of reach of children. SECTION 8 — EXPOSURE CONTROLS / PERSONAL PROTECTION ENGINEERING CONTROLS The use of local exhaust ventilation and airborne particle collection is recommended. No other special controls are indicated. PERSONAL PROTECTION RESPIRATORY PROTECTION (SPECIFY TYPE): NIOSH approved respirator designed to remove airborne particulate present in excess of maximum allowable concentrations due to operations such as mixing, spraying, sanding, buffing, etc. Refer to 29 CFR 1910 134 or European Standard EN 149 for regulations. PROTECTIVE GLOVES: Neoprene or rubber gloves EYE PROTECTION: Safety goggles with side shields OTHER PROTECTIVE CLOTHING OR EQUIPMENT: Safety eyebath nearby WORK/HYGENIC PRACTICES: Practice safe workplace habits. Minimize body contact with this, as well as all chemicals in general MATERIAL SAFETY DATA SHEET PRODUCT NAME: ALCONOX October 8, 2003 Page 3 of 4 SECTION 9— PHYSICAL AND CHEMICAL PROPERTIES VAPOR PRESSURE (MM Hg) VAPOR DENSITY (AIR = 1) Not Applicable SPECIFIC GRAVITY (WATER = 1) EVAPORATION RATE (WATER = 1) 0.85-1.10 Not Applicable SOLUBILITY IN WATER FREEZING POINT Complete to > 10% w/w Not Applicable pH: 9.5 (1% aqueous solution) PHYSICAL STATE: Granular Powder BOILING POINT

Appearance/Odor

Not Applicable White granular powder, practically odorless VISCOSITY VOLATILE ORGANIC COMPOUNDS (VOC) Not Applicable None SECTION 10 -— STABILITY AND REACTIVITY STABILITY UNSTABLE CONDITIONS TO AVOID STABLE XXX Store in a cool dry area INCOMPATABILITY (Materials to Avoid) Strong oxidizers, strong acids HAZARDOUS DECOMPOSITION OR BYPRODUCTS: Decomposition will no occur if handled and stored properly. In case of fire, oxides of carbon, hydrocarbons, fumes, and smoke may be produced. HAZARDOUS POLYMERIZATION MAY OCCUR CONDITIONS TO AVOID WILL NOT OCCUR XXX None

Hazardous Ingredients

CAS # LD50 of Ingredient LC50 of Ingredient (Species and Route) Sodium phosphate, tribasic (a) 40-30 7758-29-4 3100 mg/kg Not established oral -rat Sodium carbonate (Nuisance Dust) 7-13 497-19-8 4020 mg/kg 1200 mg/m3/2H Sodium dodecylbenzene sulfonate (a) 10-30 25155-30-0 Not Established Tetrasodium phosphate 10-30 7722-88-5 Not Established Not established Mixture as a whole 100% various >5.0 g/kg oral-rat

ECOLOGICAL INFORMATION

No data are available on the adverse effects of this material on the environment. Neither COD nor BOD data are available. Based on the chemical composition of their product it is assumed that the mixture can be treated in an acclimatized biological waste treatment plant system in limited quantities. However treatment should be evaluated and approved for each specific biological system. None of the ingredients in this mixture are classified as a Marine Pollutant. SECTION 13 — DISPOSAL CONSIDERATIONS WASTE DISPOSAL METHODS: Dispose of in accordance with Local, State , and Federal regulations. Do not flush to waterway. Refer to “40 CFR Protection of Environment Parts 260 — 299” for disposal regulations in the US. Consult your Local, State, and Federal Environmental Protection Agency before disposing of any chemicals. SECTION 14— TRANSPORT INFORMATION PROPER SHIPPING NAME: Not Regulated IATA HAZARD CLASS / Pack Group: None

Hazard categories

Pack Group: None / None IMDG HAZARD CLASS: None REFERENCE: Not Applicable RID/ADR Dangerous Goods Code: None IDENTIFICATION NUMBER: None Canadian TDG Class / Division: None LABEL: None Required

Precautionary statements

R20 Harmful by Inhalation S8 Keep container dry R36 Irritating to eyes $22 Do not breath dust R37 Irritating to respiratory system $24 Avoid contact with skin R38 Irritating to skin $25 Avoid contact with eyes

Further information

No Specific Notes HMIS HAZARD RA TINGS HEALTH 1 O= insignificant 3= high FLAMMABILITY 0 1= slight 4= extreme REACTIVITY 0 2= moderate PERSONAL PROTECTIVE EQUIPMENT B Safety Glasses, Gloves REVISION SUMMARY This MSDS has been revised in the f ollowing sections: No revisions available MSDS prepared by manufacturer The information contained herein is believed to be accurate but is not warranted to be so. Users are advised to confirm in advance of need that information is current, applicable and suited to the circumstances of use. Vendor assumes no responsibility for injury to vendee or third persons proximately caused by the material if reasonable safety procedures are not adhered to as stipulated in the data sheet. Furthermore, vendor assumes no responsibility for injury caused by abnormal use of this material even if reasonable safety procedures are followed. NJ CA GARDENA, BRUNSWICK, CS PECTRUTT ICO COC NEW Material Safety Data Sheet NFPA HMIS Personal Protective Equipment ~~") f¥ Fire Hazard 0 SIMO we 0 See Section 15. Section 1. Chemical Product and Company Identification Page Number: 1 Common Name/ Bentonite Catalog B1063, BE120, BE125 Trade Name Number(s). CAS# 1302-78-9 Manuf: anutacturer SPECTRUM QUALITY PRODUCTS INC. RTECS CT9450000 14422 S. SAN PEDRO STREET TSCA TSCA 8(b) inventory: GARDENA, CA 90248 Bentonite Commercial Name(s) Montmorillonite Cl# Not applicable. Synonym Not available. Chemical Name Not available. Chemical Family Inert material. Chemical Formula (Al, Fe1.67Mg.33)Si10(OH)2Na(+)Ca(++)/2.33 Supplier SPECTRUM QUALITY PRODUCTS INC. 14422 S. SAN PEDRO STREET GARDENA, CA 90248 IN CASE OF EMERGENCY CHEMTREC (24hr) 800-424-9300 CALL (310) 516-8000 Section 2.Composition and Information on Ingredients Exposure Limits Name CAS # TWA (mg/m) | STEL (mg/m*) | CEIL (mg/m*) | % by Weight 1) Bentonite 1302-78-9 10 100 Toxicological Data Bentonite on Ingredients LD50: Not available. LC50: Not available. Section 3. Hazards Identification Potential Acute Health Effects Hazardous in case of eye contact (irritant), of inhalation. Slightly hazardous in case of skin contact (irritant), of ingestion. Potential Chronic Health Hazardous in case of inhalation. Effects CARCINOGENIC EFFECTS: Not available. MUTAGENIC EFFECTS: Not available. TERATOGENIC EFFECTS: Not available. DEVELOPMENTAL TOXICITY: Not available. The substance is toxic to lungs. Repeated or prolonged exposure to the substance can produce target organs damage. [ Continued on Next Page [ Bentonite Page Number: 2