SAFETY DATA SHEET 1. Identification Product identifier Other means of identification Product code Recommended use Recommended restrictions CESIUM HYDROXIDE, 99.9% 1367 professional, scientific and technical activities: other professional, scientific and technical activities None known. Manufacturer/Importer/Supplier/Distributor information Manufacturer Company name GFS Chemicals, Inc. Address P.O. Box 245 Powell, OH 43065 United States Telephone Phone 740-881-5501 Toll Free 800-858-9682 Fax 740-881-5989 Website www.gfschemicals.com E-mail service@gfschemicals.com Emergency phone number Emergency Assistance Chemtrec 800-424-9300 2. Hazard(s) identification Physical hazards Not classified. Health hazards Acute toxicity, oral Skin corrosion/irritation Serious eye damage/eye irritation Environmental hazards Not classified. OSHA defined hazards Not classified. Category 4 Category 1 Category 1 Label elements Signal word Hazard statement Precautionary statement Prevention Response Storage Disposal Hazard(s) not otherwise classified (HNOC) Supplemental information Danger Harmful if swallowed. Causes severe skin burns and eye damage. Causes serious eye damage. Wear protective gloves/protective clothing/eye protection/face protection. Do not eat, drink or smoke when using this product. Wash thoroughly after handling. Immediately call a POISON CENTER or doctor/physician. Wash contaminated clothing before reuse. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. Keep container tightly closed. Handle under inert gas. Dispose of contents/container in accordance with local/regional/national/international regulations. None known. None. 3. Composition/information on ingredients Substances 1 / 8
Chemical name CESIUM HYDROXIDE Common name and synonyms CAS number % 35103-79-8 100 *Designates that a specific chemical identity and/or percentage of composition has been withheld as a trade secret. 4. First-aid measures Inhalation Skin contact Eye contact Ingestion Most important symptoms/effects, acute and delayed Indication of immediate medical attention and special treatment needed General information Move to fresh air. Call a physician if symptoms develop or persist. Take off immediately all contaminated clothing. Rinse skin with water/shower. Call a physician or poison control center immediately. Chemical burns must be treated by a physician. Wash contaminated clothing before reuse. Immediately flush eyes with plenty of water for at least 15 minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Call a physician or poison control center immediately. Call a physician or poison control center immediately. Rinse mouth. Do not induce vomiting. If vomiting occurs, keep head low so that stomach content doesn't get into the lungs. Burning pain and severe corrosive skin damage. Causes serious eye damage. Symptoms may include stinging, tearing, redness, swelling, and blurred vision. Permanent eye damage including blindness could result. Upper respiratory tract irritation. Provide general supportive measures and treat symptomatically. Chemical burns: Flush with water immediately. While flushing, remove clothes which do not adhere to affected area. Call an ambulance. Continue flushing during transport to hospital. Keep victim warm. Keep victim under observation. Symptoms may be delayed. Ensure that medical personnel are aware of the material(s) involved, and take precautions to protect themselves. Show this safety data sheet to the doctor in attendance. 5. Fire-fighting measures Suitable extinguishing media Unsuitable extinguishing media Specific hazards arising from the chemical Special protective equipment and precautions for firefighters Fire fighting equipment/instructions Specific methods General fire hazards 6. Accidental release measures Personal precautions, protective equipment and emergency procedures Methods and materials for containment and cleaning up Environmental precautions Use extinguishing agent suitable for type of surrounding fire. Water fog. Do not use water jet as an extinguisher, as this will spread the fire. During fire, gases hazardous to health may be formed. Self-contained breathing apparatus and full protective clothing must be worn in case of fire. Use water spray to cool unopened containers. Use standard firefighting procedures and consider the hazards of other involved materials. No unusual fire or explosion hazards noted. Keep unnecessary personnel away. Keep people away from and upwind of spill/leak. Keep out of low areas. Wear appropriate protective equipment and clothing during clean-up. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Ensure adequate ventilation. Local authorities should be advised if significant spillages cannot be contained. For personal protection, see section 8 of the SDS. This product is miscible in water. Stop the flow of material, if this is without risk. Prevent entry into waterways, sewer, basements or confined areas. Neutralize small amounts with diluted hydrochloric acid (HCl) and flush to sewer with large amounts of water. Following product recovery, flush area with water. For waste disposal, see section 13 of the SDS. Avoid discharge into drains, water courses or onto the ground. 7. Handling and storage Precautions for safe handling Conditions for safe storage, including any incompatibilities Do not get in eyes, on skin, or on clothing. Avoid prolonged exposure. Do not taste or swallow. When using, do not eat, drink or smoke. Provide adequate ventilation. Wear appropriate personal protective equipment. Wash hands thoroughly after handling. Observe good industrial hygiene practices. Material should be stored under an inert atmosphere. Protect from moisture. Store in original tightly closed container. Store away from incompatible materials (see Section 10 of the SDS). 2 / 8
8. Exposure controls/personal protection Occupational exposure limits US. ACGIH Threshold Limit Values Material CESIUM HYDROXIDE (CAS 35103-79-8) Type TWA US. NIOSH: Pocket Guide to Chemical Hazards Material Type Value 2 mg/m3 Value CESIUM HYDROXIDE (CAS 35103-79-8) Biological limit values Appropriate engineering controls TWA No biological exposure limits noted for the ingredient(s). 2 mg/m3 Good general ventilation (typically 10 air changes per hour) should be used. Ventilation rates should be matched to conditions. If applicable, use process enclosures, local exhaust ventilation, or other engineering controls to maintain airborne levels below recommended exposure limits. If exposure limits have not been established, maintain airborne levels to an acceptable level. Eye wash facilities and emergency shower must be available when handling this product. Individual protection measures, such as personal protective equipment Eye/face protection Wear safety glasses with side shields (or goggles) and a face shield. Skin protection Hand protection Other Respiratory protection Thermal hazards General hygiene considerations Wear appropriate chemical resistant gloves. Wear appropriate chemical resistant clothing. In case of insufficient ventilation, wear suitable respiratory equipment. Wear appropriate thermal protective clothing, when necessary. Keep away from food and drink. Always observe good personal hygiene measures, such as washing after handling the material and before eating, drinking, and/or smoking. Routinely wash work clothing and protective equipment to remove contaminants. 9. Physical and chemical properties Appearance Odor Physical state Form Color Odor threshold ph Melting point/freezing point Initial boiling point and boiling range Flash point Evaporation rate Flammability (solid, gas) Solid. Crystalline. Solid. White. Odorless. 521.6 F (272 C) Upper/lower flammability or explosive limits Flammability limit - lower (%) Flammability limit - upper (%) Explosive limit - lower (%) Explosive limit - upper (%) Vapor pressure Vapor density Relative density Solubility(ies) Solubility (water) 3950 g/l at 59 F 3 / 8
Partition coefficient (n-octanol/water) Auto-ignition temperature Decomposition temperature Viscosity Other information Density Molecular formula Molecular weight 3.67 g/cm3 CsOH.H2O 167.93 g/mol ph in aqueous solution 14 500g/l at 20 C Specific gravity 3.67 10. Stability and reactivity Reactivity Chemical stability Possibility of hazardous reactions Conditions to avoid Incompatible materials Hazardous decomposition products 11. Toxicological information Information on likely routes of exposure Inhalation Skin contact Eye contact Ingestion Symptoms related to the physical, chemical and toxicological characteristics Information on toxicological effects Acute toxicity Skin corrosion/irritation Serious eye damage/eye irritation Respiratory or skin sensitization Respiratory sensitization Skin sensitization Germ cell mutagenicity Carcinogenicity Reacts violently with strong acids. This product may react with oxidizing agents. Material is stable under normal conditions. Hazardous polymerization does not occur. Do not mix with other chemicals. Contact with incompatible materials. Readily absorbs carbon dioxide from air. The substance is hygroscopic and will absorb water by contact with the moisture in the air. Acids. Oxidizing agents. May include oxides of cesium. May cause irritation to the respiratory system. Prolonged inhalation may be harmful. Causes severe skin burns. Causes serious eye damage. Causes digestive tract burns. Harmful if swallowed. Burning pain and severe corrosive skin damage. Causes serious eye damage. Symptoms may include stinging, tearing, redness, swelling, and blurred vision. Permanent eye damage including blindness could result. Upper respiratory tract irritation. Harmful if swallowed. Causes severe skin burns and eye damage. Causes serious eye damage. This product is not expected to cause skin sensitization. No data available to indicate product or any components present at greater than 0.1% are mutagenic or genotoxic. This product is not considered to be a carcinogen by IARC, ACGIH, NTP, or OSHA. IARC Monographs. Overall Evaluation of Carcinogenicity US OSHA Hazard Categories (1) US OSHA Hazard Categories (10) US OSHA Hazard Categories (2) US OSHA Hazard Categories (3) US OSHA Hazard Categories (4) US OSHA Hazard Categories (5) 4 / 8
US OSHA Hazard Categories (6) US OSHA Hazard Categories (7) US OSHA Hazard Categories (8) US OSHA Hazard Categories (9) US. National Toxicology Program (NTP) Report on Carcinogens Reproductive toxicity Specific target organ toxicity - single exposure Specific target organ toxicity - repeated exposure Aspiration hazard Chronic effects 12. Ecological information Ecotoxicity Persistence and degradability Bioaccumulative potential Mobility in soil Other adverse effects 13. Disposal considerations Disposal instructions Local disposal regulations Hazardous waste code Waste from residues / unused products Contaminated packaging 14. Transport information This product is not expected to cause reproductive or developmental effects. Not classified. Not classified. Prolonged inhalation may be harmful. The product is not classified as environmentally hazardous. However, this does not exclude the possibility that large or frequent spills can have a harmful or damaging effect on the environment. No data is available on the degradability of this product. No data available. No data available. No other adverse environmental effects (e.g. ozone depletion, photochemical ozone creation potential, endocrine disruption, global warming potential) are expected from this component. Collect and reclaim or dispose in sealed containers at licensed waste disposal site. Dispose of contents/container in accordance with local/regional/national/international regulations. Dispose in accordance with all applicable regulations. The waste code should be assigned in discussion between the user, the producer and the waste disposal company. Dispose of in accordance with local regulations. Empty containers or liners may retain some product residues. This material and its container must be disposed of in a safe manner (see: Disposal instructions). Empty containers should be taken to an approved waste handling site for recycling or disposal. Since emptied containers may retain product residue, follow label warnings even after container is emptied. DOT UN number UN2682 UN proper shipping name Caesium hydroxide Transport hazard class(es) Class 8 Subsidiary risk - Label(s) 8 Packing group II Special precautions for Read safety instructions, SDS and emergency procedures before handling. user Special provisions IB8, IP2, IP4, T3, TP33 Packaging exceptions 154 Packaging non bulk 212 Packaging bulk 240 IATA UN number UN2682 UN proper shipping name Caesium hydroxide Transport hazard class(es) Class 8 Subsidiary risk - Packing group II 5 / 8
Environmental hazards No. ERG Code 8L Special precautions for Read safety instructions, SDS and emergency procedures before handling. user Other information Passenger and cargo Allowed with restrictions. aircraft Cargo aircraft only Allowed with restrictions. IMDG UN number UN2682 UN proper shipping name CAESIUM HYDROXIDE Transport hazard class(es) Class 8 Subsidiary risk - Packing group II Environmental hazards Marine pollutant No. EmS F-A, S-B Special precautions for Read safety instructions, SDS and emergency procedures before handling. user Transport in bulk according to Not applicable. Annex II of MARPOL 73/78 and the IBC Code DOT IATA; IMDG 15. Regulatory information US federal regulations This product is a "Hazardous Chemical" as defined by the OSHA Hazard Communication Standard, 29 CFR 1910.1200. All components are on the U.S. EPA TSCA Inventory List. TSCA Section 12(b) Export Notification (40 CFR 707, Subpt. D) CERCLA Hazardous Substance List (40 CFR 302.4) SARA 304 Emergency release notification US OSHA Hazard Categories (1) US OSHA Hazard Categories (2) US OSHA Hazard Categories (3) 6 / 8
US OSHA Hazard Categories (4) US OSHA Hazard Categories (5) US OSHA Hazard Categories (6) US OSHA Hazard Categories (7) US OSHA Hazard Categories (8) US OSHA Hazard Categories (9) US OSHA Hazard Categories (10) Superfund Amendments and Reauthorization Act of 1986 (SARA) Hazard categories Immediate Hazard - Delayed Hazard - No Fire Hazard - No Pressure Hazard - No Reactivity Hazard - No SARA 302 Extremely hazardous substance SARA 311/312 Hazardous chemical SARA 313 (TRI reporting) Other federal regulations Clean Air Act (CAA) Section 112 Hazardous Air Pollutants (HAPs) List Clean Air Act (CAA) Section 112(r) Accidental Release Prevention (40 CFR 68.130) Safe Drinking Water Act (SDWA) US state regulations US. California Controlled Substances. CA Department of Justice (California Health and Safety Code Section 11100) US. Massachusetts RTK - Substance List CESIUM HYDROXIDE (CAS 35103-79-8) US. New Jersey Worker and Community Right-to-Know Act CESIUM HYDROXIDE (CAS 35103-79-8) US. Pennsylvania Worker and Community Right-to-Know Law CESIUM HYDROXIDE (CAS 35103-79-8) US. Rhode Island RTK US. California Proposition 65 California Safe Drinking Water and Toxic Enforcement Act of 1986 (Proposition 65): This material is not known to contain any chemicals currently listed as carcinogens or reproductive toxins. International Inventories Country(s) or region Inventory name On inventory (yes/no)* Australia Australian Inventory of Chemical Substances (AICS) Canada Canada China Europe Europe Japan Korea Domestic Substances List (DSL) Non-Domestic Substances List (NDSL) Inventory of Existing Chemical Substances in China (IECSC) European Inventory of Existing Commercial Chemical Substances (EINECS) European List of Notified Chemical Substances (ELINCS) Inventory of Existing and New Chemical Substances (ENCS) Existing Chemicals List (ECL) 7 / 8 No No No
Country(s) or region Inventory name On inventory (yes/no)* New Zealand Philippines United States & Puerto Rico New Zealand Inventory Philippine Inventory of Chemicals and Chemical Substances (PICCS) Toxic Substances Control Act (TSCA) Inventory *A "" indicates that all components of this product comply with the inventory requirements administered by the governing country(s) A "No" indicates that one or more components of the product are not listed or exempt from listing on the inventory administered by the governing country(s). 16. Other information, including date of preparation or last revision Issue date Version # 01 July-15-2016 Disclaimer Revision information GFS Chemicals, Inc. cannot anticipate all conditions under which this information and its product, or the products of other manufacturers in combination with its product, may be used. It is the user s responsibility to ensure safe conditions for handling, storage and disposal of the product, and to assume liability for loss, injury, damage or expense due to improper use. The information in the sheet was written based on the best knowledge and experience currently available. Product and Company Identification: Physical States Composition / Information on Ingredients: Ingredients Physical & Chemical Properties: Multiple Properties Transport Information: Proper Shipping Name/Packing Group 8 / 8