Kurt J. Lesker Company 1

KJLC Code: EJTBAOX301A2 Kurt J. Lesker Company

Barium oxide, powder and pieces

Manufacturer MSDS Number: BaO

SECTION 1 : Chemical Product and Company Identification

MSDS Name: Barium oxide, powder and pieces Manufacturer Name:Kurt J. Lesker Company Address: P.O. Box 10 1925 Route 51 Clairton, PA 15025

For emergencies in the US, call CHEMTREC: 800−424−9300 Other Phone: US National Poison Hotline: (800)222−1222 Manufacturer MSDS Creation Date: 06/22/2006 Manufacturer MSDS Revision Date: 06/25/2008 Synonyms: Barium oxide; barium protoxide; calcined baryta. Chemical Family: Metal oxide Chemical Formula: BaO Molecular Weight: 153.33 DOT HAZARD LABEL POISON Product Codes: BaO

SECTION 2 : Hazardous Ingredients/Identity Information Chemical Name CAS# % Weight Barium oxide 1304−28−5 0.0 −100.0 %

SECTION 3 : Physical And Chemical Characteristics Physical State/Appearance: White−yellowish powder and pieces; no odor Physical State: [ ] Gas , [ ] Liquid , [ X ] Solid pH: No data. Vapor Pressure: No data. (VS. AIR OR MM HG) Vapor Density:

1 No data. (VS. AIR = 1) Boiling Point: 2000.00 deg C (3632.0 deg F) Melting Point: 1918.00 deg C (3484.4 deg F) Solubility In Water: soluble Specific Gravity: 5.72 gm/cc (WATER = 1) Density: No data. Evaporation Point: No data. (VS BUTYL ACETATE=1) Percent Volatile: N.A. FlashPoint: N.A. Upper Flammable Explosive Limit: NA Lower Flammable Explosive Limit: NA

SECTION 4 : Fire And Explosion Hazards Flash Point: N.A. Flash Point Method: NON−FLAMMABLE Upper Flammable or Explosive Limit: NA Lower Flammable or Explosive Limit: NA Extinguishing Media: Class D or other metal extinguishing agent. Unsuitable Media: Water. Fire Fighting Instructions: Firefighters must wear full face, self−contained breathing apparatus with full protective clothing to prevent contact with skin and eyes. Fumes from fire are hazardous. Isolate runoff to prevent environmental pollution. Unusual Fire Hazards: Barium oxide combustible by spontaneous chemical reaction. Produces heat on contact with water and moisture. Is very alkaline. Absorbs moisture and carbon dioxide on exposure to air. On contact with water or steam it reacts violently to form barium hydroxide with the evolution of heat.

SECTION 5 : Health Hazards

Barium oxide: Route of Exposure: Inhalation? Yes , Skin? Yes , Eyes? Yes , Ingestion? Yes , Other: N Potential Health Effects: Eye Contact: Chemical burns as it reacts with moisture on living tissue. Skin Contact: Chemical burns as it reacts with moisture on living tissue.

2 Inhalation: Chemical burns as it reacts with moisture on living tissue. May cause acute poisoning with progressive symptoms. Ingestion: DANGER−POISON. Chemical burns as it may react with moisture on living tissue. May cause poisoning, vomiting, colic, diarrhea, slow irregular pulse, transient hypertension, convulsions, tremors, muscular paralysis, and acute barium poisoning. Chronic Eye Contact:a May cause corneal opacity and blindness. Chronic Skin Contact: May cause dermatitis. Chronic Inhalation: Not applicable. Chronic Ingestion: May cause chronic barium poisoning. Carcinogenicity: NTP? No , IARC Monographs? No , OSHA Regulated? No Target Organs: May affect upper respiratory system, central nervous system, heart, skin and eyes. Signs/Symptoms: INHALATION: May cause redness, inflammation and possible chemical burns. Acute poisoning may cause irritation of the nose and eyes, muscular twitching, fatigue, abdominal cramps, cold sweat, slow heart rate and death from heart stopping. INGESTION: May cause chemical burns. Acute barium poisoning may cause: a slow, hard pulse and elevated blood pressure; excessive salivation; vomiting; colic; violent diarrhea; convulsive tremors; muscular paralysis and paralysis of the central nervous system; strong vasoconstriction, due to the direct barium stimulation of arterial muscles, raises blood pressure. High blood pressure can cause the stomach, intestines and kidneys to hemorrhage. Chronic barium poisoning is similar but less severe than acute barium poisoning. SKIN: May cause redness, itching, inflammation and chemical burns. EYE: May cause redness, itching, inflammation, chemical burns and watering. Other Potential Health Effects: CARCINOGENICITY/OTHER INFORMATION: No data available. Aggravation of Pre−Existing Conditions: Pre−existing respiratory disorders See "Section II" LD 50/LC 50: scu−mus LD50: 50 mg/kg

SECTION 6 : Emergency And First Aid Procedures Physical Health Hazard: HEALTH HAZARDS (ACUTE AND CHRONIC): The soluble barium salts, such as the chloride and sulfide are poisonous when ingested. Few cases of industrieal systemic poisoning have been reported, but one investigator describes a fatal case of poisoning attributed to barium oxide, the symptoms being severe abdominal pain with vomiting, dyspnea, rapid pulse paralysis of the arm and leg and eventially cyanosis and death. (Sax, Dangerous Properties of Industrial Materials, eighth edition) Eye Contact: Flush eyes with lukewarm water, lifting upper and lower eyelids, for at least 15 minutes. Seek medical attention immediately. Skin Contact: Remove contaminated clothing from affected area; brush material off skin; wash affected area with mild soap and water; seek medical attention immediately. Inhalation: Remove victim to fresh air; keep warm and quiet; give oxygen if breathing is difficult and seek medical attention immediately. Ingestion: If conscious, give 1−2 glasses of milk or water and induce vomiting; seek medical attention immediately. Never give anything by mouth or induce vomiting to an unconscious person. Note to Physicians: No data available.

SECTION 7 : Reactivity Data Chemical Stability:

3 Unstable [ X ] Stable [ ] Conditions to Avoid: CONDITIONS TO AVOID − INSTABILITY: Water, moisture and air; CONDITIONS TO AVOID − HAZARDOUS POLYMERIZATION: None Incompatibilities with Other Materials: Water, acids, H2S, hydroxylamine, N2O4, triuranium octaoxide, SO3. Hazardous Polymerization: Will occur [ ] Will not occur [ X ] Hazardous Decomposition Products: Barium oxide and barium hydroxide

SECTION 8 : Precautions For Safe Handling Spill Cleanup Measures: Wear appropriate respiratory and protective equipment specified in section VIII−control measures. Isolate spill area, provide ventilation and extinguish sources of ignition. Vacuum up spill using a high efficiency particulate absolute (HEPA) air filter and place in a closed container for proper disposal. Use non−sparking tools. Take care not to raise dust. Other Precautions: None HAZARD LABEL INFORMATION: Store in cool, dry area Store in tightly sealed container Wash thoroughly after handling

Handling: Barium oxide reacts violently with water. Handle and store in a controlled environment and inert gas such as argon. Storage: Barium oxide reacts violently with water. Handle and store in a controlled environment and inert gas such as argon. Hygiene Practices: WORK/HYGIENIC/MAINTENANCE PRACTICES: Implement engineering and work practice controls to reduce and maintain concentration of exposure at low levels. Use good housekeeping and sanitation practices. Do not use tobacco or food in work area. Wash thoroughly before eating and smoking. Do not blow dust off clothing or skin with compressed air.

Waste Disposal: Dispose of in accordance with local, state and federal regulations.

DOT: DOT HAZARD LABEL: POISON DOT Shipping Name: BARIUM OXIDE DOT UN Number: 1884 DOT Hazard Class: 6.1 DOT Packing Group: III

SECTION 9 : Control Measures Ventilation System: Local Exhaust: Use process enclosures, local exhaust ventilation, or other engineering controls to control airborne levels below recommended exposure limits. Special: Handle in a controlled atmosphere Mechanical (Gen): Not recommended Other: Handle in an inert gas such as argon Hand Protection Description: Butyl or polycarbonate Eye/Face Protection: Safety goggles Protective Clothing/Body Protection:

4 Protective gear suitable to prevent contamination Respiratory Protection: NIOSH − approved cartridge respirator

NIOSH approved respirator Impervious gloves Vented Goggles Clothes to prevent skin contact Ingredient Guidelines Ingredient: Barium oxide Guideline Information: ACGIH TLV: 0.5 mg/m3; OSHA PEL: 0.5 mg/m3; OTHER LIMITS: NE

SECTION 10 : Other Information Barium oxide: Section 302: No Section 304: No Section 313 Toxic Release Form: Yes

HMIS: Health Hazard: 3 Fire Hazard: 0 Reactivity: 2 Personal Protection: J MSDS Revision Date: 06/25/2008 Disclaimer: Kurt J. Lesker Company (“KJLC”) believes the information contained in this Material Safety Data Sheet is accurate as of the “Date of Last Revision” specified. The information relates only to typical properties of the product. Do not use the information for product performance or specification purposes. The information is for use by technically skilled persons at their own risk. KJLC MAKES NO EXPRESS OR IMPLIED WARRANTY OF ANY KIND, INCLUDING WITHOUT LIMITATION WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE, WITH RESPECT TO THE PRODUCT OR THE INFORMATION. The information may not be valid for product use in combination with any other product or material or in any process. KJLC expressly disclaims any liability arising from any use of the product or any reliance on the information. Do not treat the information (a) as assurance that use of the product will not infringe patent or other rights or (b) as a license or grant of patent or other property rights. “KJLC” means KJLC and each of its subsidiaries. Comment: SUPERCEDES REVISION 12/01/2004 OTHER HAZARD RATINGS: Health: 3 Flammability: 0 Reactivity: 2 Special Hazard: J Minimal: 0 Slight: 1 Moderate: 2 Serious: 3 Extreme: 4 Abbreviations used NA=Not Applicable NE: Not Established ADDENDUM : Other Client Information Notes: , EJTBAOX252A2, EJTBAOX301A2, EJTBAOX302A2, EJTBAOX303A2, EJTBAOX303A4, EJTBASNOX2A2, EJTBSNOSPL02, EJTBSNOSPL01, EJTLBCUO1A2, EJTPBCO301A4, EJVPBCO302A4, EVMBAO25D, EVMBAOPCS−D

Notes: 5