Lanthanum hexaboride powder | SDS | CAS 12008-21-8 | National Institute of Standards and Technology (NIST) | NIST SRM 660b | English | 01 August 2013

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Date of Issue: 01 August 2013 SAFETY DATA SHEET

1. SUBSTANCE AND SOURCE IDENTIFICATION Product Identifier SRM Number: 660b SRM Name: Line Position and Line Shape Standard for Powder Diffraction Other Means of Identification: Not applicable. Recommended Use of This Material and Restrictions of Use This Standard Reference Material (SRM) is intended for use in calibration of diffraction line positions and line shapes determined through powder diffractometry. A unit of SRM 660b consists of approximately 6 g of lanthanum hexaboride, LaB6, powder bottled under argon. Company Information National Institute of Standards and Technology Standard Reference Materials Program 100 Bureau Drive, Stop 2300 Gaithersburg, Maryland 20899-2300

Telephone: 301-975-2200 Emergency Telephone ChemTrec: FAX: 301-948-3730 1-800-424-9300 (North America) E-mail: SRMMSDS@nist.gov +1-703-527-3887 (International) Website: http://www.nist.gov/srm

2. HAZARDS IDENTIFICATION

Classification Physical Hazard: Not classified. Health Hazard: Not classified.

Label Elements Symbol: No Symbol Signal Word: No Signal Word Hazard Statement(s): Not applicable. Precautionary Statement(s): Not applicable. Hazards Not Otherwise Classified: Not applicable. Ingredients(s) with Unknown Acute Toxicity: Not applicable.

3. COMPOSITION AND INFORMATION ON HAZARDOUS INGREDIENTS

Substance: Lanthanum Boride Other Designations: Lanthanum hexaboride. Components are listed in compliance with OSHA’s 29 CFR 1910.1200; for the actual values see the Certificate of Analysis. Hazardous Component(s) CAS Number EC Number Nominal Mass Concentration (EINECS) (%) Lanthanum Boride 12008-21-8 234-531-6 100

4. FIRST AID MEASURES

Description of First Aid Measures: Inhalation: If adverse effects occur, remove to uncontaminated area. If not breathing, give artificial respiration or oxygen by qualified personnel. Seek immediate medical attention.

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Skin Contact: Wash skin with soap and water for at least 15 minutes. If necessary, seek medical attention. Eye Contact: Flush eyes with water for at least 15 minutes. If necessary, seek medical attention. Ingestion: If a large amount is swallowed, seek medical attention. Most Important Symptoms/Effects, Acute and Delayed: No data available; generated dust may result in irritation. Indication of any immediate medical attention and special treatment needed, if necessary: If any of the above symptoms are present, seek medical attention if needed.

5. FIRE FIGHTING MEASURES

Fire and Explosion Hazards: Negligible fire hazard. See Section 9, “Physical and Chemical Properties” for flammability properties. Extinguishing Media: Suitable: Use extinguishing media appropriate for the surrounding area. Unsuitable: None listed. Specific Hazards Arising from the Chemical: None listed. Special Protective Equipment and Precautions for Fire-Fighters: Avoid inhalation of material or combustion byproducts. Wear full protective clothing and NIOSH approved self-contained breathing apparatus (SCBA). Move container from fire area if it can be done without risk. Stay upwind and keep out of low areas. NFPA Ratings (0 = Minimal; 1 = Slight; 2 = Moderate; 3 = Serious; 4 = Severe) Health = 1 Fire = 0 Reactivity = 0

6. ACCIDENTAL RELEASE MEASURES

Personal Precautions, Protective Equipment and Emergency Procedures: Keep unnecessary personnel away. Use suitable protective equipment; see Section 8, “Exposure Controls and Personal Protection”. Methods and Materials for Containment and Clean up: Notify safety personnel of spills. Collect spilled material in appropriate container for disposal. Isolate hazard area and deny entry.

7. HANDLING AND STORAGE

Safe Handling Precautions: Avoid generating dust. See Section 8, “Exposure Controls and Personal Protection”. Storage: Store and handling in accordance with all current regulations and standards.

8. EXPOSURE CONTROLS AND PERSONAL PROTECTION

Exposure Limits: No occupational exposure limits have been established for this material. The exposure limits for Particulates Not Otherwise Regulated are applicable. OSHA (PEL): 15 mg/m3 (TWA, total particulates) 5 mg/m3 (TWA, respirable particulates) Engineering Controls: Provide local exhaust or process enclosure ventilation system. Ensure compliance with applicable exposure limits. Personal Protection: In accordance with OSHA 29 CFR 1910.132, subpart I, wear appropriate Personal Protective Equipment (PPE) to minimize exposure to this material. Respiratory Protection: If workplace conditions warrant a respirator, a respiratory protection program that meets OSHA 29CFR 1910.134 must be followed. Refer to NIOSH 42 CFR 84 for applicable certified respirators. Eye/Face Protection: Wear splash resistant safety goggles with a face shield. An eyewash station should be readily available near areas of use. Skin and Body Protection: Personal protective equipment for the body should be selected based on the task being performed and the risks involved and should be approved by a specialist before handling this product. Chemical-resistant gloves should be worn at all times when handling chemicals.

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9. PHYSICAL AND CHEMICAL PROPERTIES

Descriptive Properties: Appearance purple crystalline powder (physical state, color, etc.): Molecular Formula: LaB6 Molar Mass (g/mol): 203.78 Odor: not available Odor threshold: not available pH: not available Evaporation rate: not applicable Melting point/freezing point (ºC): not available Relative Density (g/L): 2.610 (relative to water) Vapor Pressure (mmHg): not applicable Vapor Density (air = 1): not applicable Viscosity (cP): not applicable Solubility(ies): insoluble in water and HCl Partition coefficient (n-octanol/water): not available Particle Size (if relevant) not available Thermal Stability Properties: Autoignition Temperature (ºC): not available Thermal Decomposition (ºC): not available Initial boiling point and boiling range (ºC): decomposes Explosive Limits, LEL (Volume %): not available Explosive Limits, UEL (Volume %): not available Flash Point (ºC) not available Flammability (solid, gas): not available

10. STABILITY AND REACTIVITY

Reactivity: Stable at normal temperatures and pressure. Stability: X Stable Unstable Possible Hazardous Reactions: No data available. Conditions to Avoid: Generating dust. Incompatible Materials: No data available. Fire/Explosion Information: See Section 5, “Fire Fighting Measures”. Hazardous Decomposition: Oxides of lanthanum and boron. Hazardous Polymerization: Will Occur X Will Not Occur

11. TOXICOLOGICAL INFORMATION

Route of Exposure: X Inhalation X Skin Ingestion Symptoms Related to the Physical, Chemical and Toxicological Characteristics: No data available; generated dust may result in irritation. Potential Health Effects (Acute, Chronic and Delayed): Inhalation: No data available; exposure may result in respiratory tract irritation. Chronic exposure to the vapors of some rare earth salts have been reported to result in itching and sensitivity to heat; bronchiolitis and chemical pneumonitis have also been reported. SRM 660b Page 3 of 5

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Skin Contact: No data available; skin exposure may result in mechanical irritation. Rare earth salts are unlikely to cause irritation to intact skin Eye Contact: No data available; dust may cause mechanical irritation. Ingestion: No data available; ingestion of large amounts may result in adverse effects to the gastrointestinal system. Numerical Measures of Toxicity: Acute Toxicity: Not classified; no data available. Skin Corrosion/Irritation: Not classified; no data available. Serious Eye damage/ Eye irritation: Not classified; no data available. Respiratory Sensitization: Not classified; no data available. Skin Sensitization: Not classified; no data available. Germ Cell Mutagenicity: Not classified; no data available. Carcinogenicity: Not classified. Listed as a Carcinogen/Potential Carcinogen Yes X No Lanthanum boride is not listed by NTP, IARC or OSHA as a carcinogen. Reproductive Toxicity: Not classified; no data available. Specific Target Organ Toxicity, Single Exposure: Not classified; no data available. Specific Target Organ Toxicity, Repeated Exposure: Not classified; no data available. Aspiration Hazard: Not classified; no data available.

12. ECOLOGICAL INFORMATION

Ecotoxicity Data: No data available. Persistence and Degradability: No data available. Bioaccumulative Potential: No data available. Mobility in Soil: No data available. Other Adverse effects: No data available.

13. DISPOSAL CONSIDERATIONS

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

14. TRANSPORTATION INFORMATION

U.S. DOT and IATA: Not regulated by DOT or IATA.

15. REGULATORY INFORMATION

U.S. Regulations: CERCLA Sections 102a/103 (40 CFR 302.4): Not regulated. SARA Title III Section 302 (40 CFR 355.30): Not regulated. SARA Title III Section 304 (40 CFR 355.40): Not regulated. SARA Title III Section 313 (40 CFR 372.65): Not regulated. OSHA Process Safety (29 CFR 1910.119): Not regulated. SARA Title III Sections 311/312 Hazardous Categories (40 CFR 370.21):

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ACUTE HEALTH: No. CHRONIC HEALTH: No. FIRE: No. REACTIVE: No. PRESSURE: No. State Regulations: California Proposition 65: Not listed. U.S. TSCA Inventory: Listed. TSCA 12(b), Export Notification: Not listed. Canadian Regulations: WHMIS Information: Not provided for this material.

16. OTHER INFORMATION

Issue Date: 01 August 2013 Sources: ChemAdvisor, Inc., MSDS Lanthanum Boride, 23 June 2009. CDC; NIOSH; NIOSH Pocket Guide to Chemical Hazards; Department of Health and Human Services (DHHS), Centers for Disease Control and Prevention (CDC), National Institute for Safety and Health; Particulates not otherwise regulated, 4 April 2011; available at http://www.cdc.gov/niosh/npg/npgd0480.html (accessed July 2013).

Key of Acronyms: ACGIH American Conference of Governmental Industrial NRC Nuclear Regulatory Commission Hygienists ALI Annual Limit on Intake NTP National Toxicology Program CAS Chemical Abstracts Service OSHA Occupational Safety and Health Administration CERCLA Comprehensive Environmental Response, PEL Permissible Exposure Level Compensation, and Liability Act CFR Code of Federal Regulations RCRA Resource Conservation and Recovery Act DOT Department of Transportation REL Recommended Exposure Limit EC50 Effective Concentration, 50 % RM Reference Material EINECS European Inventory of Existing Commercial RQ Reportable Quantity Chemical Substances EPCRA Emergency Planning and Community Right-to-Know RTECS Registry of Toxic Effects of Chemical Substances Act IARC International Agency for Research on Cancer SARA Superfund Amendments and Reauthorization Act IATA International Air Transportation Agency SCBA Self-Contained Breathing Apparatus IDLH Immediately Dangerous to Life and Health SRM Standard Reference Material LC50 Lethal Concentration, 50 % STEL Short Term Exposure Level LD50 Lethal Dose, 50 % TLV Threshold Limit Value LEL Lower Explosive Limit TPQ Threshold Planning Quantity MSDS Material Safety Data Sheet TSCA Toxic Substances Control Act NFPA National Fire Protection Association TWA Time Weighted Average NIOSH National Institute for Occupational Safety and Health UEL Upper Explosive Limit NIST National Institute of Standards and Technology WHMIS Workplace Hazardous Materials Information System

Disclaimer: Physical and chemical data contained in this SDS are provided only for use in assessing the hazardous nature of the material. The SDS was prepared carefully, using current references; however, NIST does not certify the data in the SDS. The certified values for this material are given in the NIST Certificate of Analysis. Users of this SRM should ensure that the SDS in their possession is current. This can be accomplished by contacting the SRM Program: telephone (301) 975-2200; fax (301) 948-3730; e-mail srmmsds@nist.gov; or via the Internet at http://www.nist.gov/srm.

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