Dysprosium (III) Fluoride [DyF 3 ]

Transcription

1 STANDARD OPERATING PROCEDURE Dysprosium (III) Fluoride [DyF 3 ] (Prepared by Ryan Chesser, Oct. 2015) According to the Safety Data Sheet (SDS) special precautions must be taken when working with the chemical described above. The following information includes the chemical characteristics followed by recommendations for handling and any paperwork needed in order to use the chemical in the laboratory. This Standard Operating Procedure will be followed along with the requirements of the Chemical Hygiene Plan. The standard operating procedure and high level of care and attention for rare earth metal (REM) fluorides in an argon atmosphere contained in a glove box, is the same regardless of which species of REM used. This standard operating procedures details information about multiple species of REM. A list of physical and chemical information, along with all hazards and safety information, is detailed for following species: 1. Dysprosium (III) Fluoride (DyF3) This list and the Standard Operating Procedure will be updated annually, or whenever a new species of REM fluoride will be used in an experiment. Additionally, the MSDS for each REM fluoride will be provided as an appendix to the Quality Assurance / Chemical Hygiene Plan. Brief description of proposed chemical work: DyF3 is one of the Rare Earth Metal (REM) fluorides that is used to study the behavior of rare earth metals in this salt mixture. The salt mixture will be mixed and melted in an Argon gas evacuated glove box. All experiments with the molten salt mixture will be performed within the glove box, and DyF3 will not be removed from the glove box until is it ready for disposal. **Attach additional pages as needed*

2 Section 1: Brief Safety Overview: The Principal Investigator is responsible for training employees using the material on site. The training should include a discussion of the known and potential hazards; an explanation of the relevant policies, techniques and procedures including the proper use of personal protective equipment, emergency/spill procedures and containment equipment (engineering controls). Limit access to authorized users. Minimize the possibility of inadvertent ingestion, inhalation and direct skin or eye contact with the substance. Chemical has been entered in the Chemical Inventory (EHS Assistant) Require annual training. Section 2: Research Laboratory Procedures Handling Instructions o Dysprosium fluoride will be stored inside glovebox at all times. o Containers will never be opened outside of glovebox and Dysprosium fluoride should only be transferred out of container while inside sealed glovebox. Proper laboratory procedure must be followed and employees must be trained to handle the material. Storage: DyF3 will be stored inside glovebox at all times and should only be removed in a sealed container for disposal. Location Engineering controls Ventilation: Glovebox has built-in ventilation system Designated area (specify): Inside of glovebox at all times, except disposal Bio-Safety Cabinet

3 PPE required: Handling Outside of Glove Box: Skin/Body Protection: Long sleeves and pants Eye protection Face shield Respirator: Hand protection: Butyl gloves Handling Inside Glove Box: Skin/Body Protection Eye protection Face shield Respirator: Hand protection: Butyl Gloves attached to Glovebox Disposal Procedures o Used DyF3 salt will be disposed in an EHS approved storage container inside the glove box. The container must be sealed prior to removal from the glovebox. Upon request, EHS will pick up the waste container. Section 3: Properties, Hazards, Safety Information for REM Fluorides

4 Dysprosium fluoride (DyF 3 ) GHS Classifications: Signal Words: Warning Pictograms: Additional Classification: H315: Causes eye irritation H319: Causes serious eye irritation H335: May cause respiratory irritation Physical and Chemical Properties CAS Number: Stability: Stable under normal conditions Physical state and appearance: Powder Hygroscopic? No information available Color: Off-white Corrosivity: Non-corrosive Molecular Weight: g/mol Chemical Incompatibilities: Strong acids, strong oxidizing agents Melting Point: 1306 C Hazardous Polymerization: Will not occur Boiling Point: 2200 C Hazardous Decomposition Products: Specific Gravity: 7.5 Fluorine, Hydrogen Fluoride gas Vapor Pressure: Not available Conditions to Avoid: Moisture Routes of Exposure Occupational Exposures Skin: Eyes: Inhalation: Ingestion: Burning, itching, may cause redness. Causes eye irritation, watering, itching Causes respiratory tract irritation May cause digestive tract disturbances

5 Hazards Identifications Toxicological Effects Acute Effects Eye/skin irritation LD50/LC50 Not Available Chronic Effects (see note below) Carcinogenicity Not listed as carcinogen * Rare earth metals are moderately to highly toxic. The symptoms of toxicity of rare earth elements include writhing, ataxia, labored respiration, walking to the toes with arched back and sedation. The rare earth elements exhibit low toxicity by ingestion exposure. However the intra peritoneal route is highly toxic while the subcutaneous route is poison to moderately toxic. The production of skin and lung granulomas after exposure to them requires extensive protection to prevent such exposure. Exposure Response and First Aid Measures Skin: Eyes: Immediately wash skin with soap and plenty of water. Seek medical attention if irritation or symptoms persist. Check for and remove any contact lenses. Immediately flush eyes with running water for at least 15 minutes, keeping eyelids open. Cold water may be used. Seek medical attention. Inhalation: Remove victim to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Seek medical aid. Ingestion: Never give anything by mouth to an unconscious person. Drink 1-2 glasses of water. If ingested, induce vomiting, but only under medical supervision. Consult a physician. Emergency Procedure for Chemical Spills and Accidental Releases Spills/Leaks: Vacuum or sweep up material and place into a suitable disposal container. Avoid generating dusty conditions. Provide ventilation. Do not let products enter drains.

6 This Standard Operating Procedure must be placed in the Chemical Hygiene Plan and the SDS must be accessible. Also, all laboratory personnel must be familiar with safe handling practices (i.e., training with documentation of training) when working with these chemicals. This must be incorporated into the comprehensive chemical hygiene plan of the laboratory. If you have any questions regarding a comprehensive mandatory laboratory chemical hygiene plan please contact your Representative at Environmental Health and Safety ( ).For any other questions or concerns, please contact: PI contact information Name: Dr. Jinsuo Zhang Primary Contact Number: (614) Office (505) Cell zhang.3558@osu.edu P.I. Signature