5346

MP Materials

Revision date : 2022-09-09

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GHS07
Health risk rating 2
Safety risk rating 1
Environmental risk rating 1

Note: Ingredients listed on restricted chemical lists

EC/CAS

231-791-2/7732-18-5

Name of the chemical

Water, distilled, conductivity or of similar purity H2O

Concentration

55-73

General Information

Revision date

2022-09-09

Product name

5346

Chemical name

Rare Earth Chloride

1.2.1 Relevant identified uses

Coagulant and phosphorus reduction media for water treatment

Emergency telephone

+1 (800) 424-9300, +1 (703) 527-3887, (800) 222-1222

Icons in SDS

GHS07 M004 M008 M009 M010 M013 M017

Company Information

company name

MP Materials

GHS Information

Signal word

Warning

Section 2

SECTION 2: Hazards identification

Classification of the Substance or Mixture Classification according to the Global Harmonized System (GHS) Health Environmental Physical Skin Irritation (Category 2) None None Eye Irritation (Category 2B)

Hazard statements

H315 Causes skin irritation H320 Causes eye irritation

Precautionary statements

P264: Wash hands/skin thoroughly after handling P280: Wear protective gloves/protective clothing/eye protection/face protection P302+P352 IF ON SKIN Wash with plenty water P303+P351+P338 IF IN EYES Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P321: Specific treatment (see First Aid) on this label P337+P313 If eye irritation persists Get medical advice/attention P362+P364: Take off contaminated clothing and wash it before reuse

2.3 Other hazards

None

2.1 Classification of the substance or mixture

Classification according to the Global Harmonized System (GHS): Health Environmental Physical Skin Irritation (Category 2) None Eye Irritation (Category 2B) Label Elements: Hazard Pictogram(s): Signal Word: Warning Revision Date: September 9, 2022 1 of Hazard Statements Precautionary Statements H315: Causes skin irritation P264: Wash hands/skin thoroughly after handling H320: Causes eye irritation P280: Wear protective gloves/protective clothing/eye protection/face protection P302+P352: IF ON SKIN: Wash with plenty water P303+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P321: Specific treatment (see First Aid) on this label P337+P313: If eye irritation persists: Get medical advice/attention P362+P364: Take off contaminated clothing and wash it before reuse Other Hazards: None SECTION 3 COMPOSITION/ INFORMATION ON INGREDIENTS Mixture: CAS EC Number Chemical Name Percent (% Weight) 7732-18-5 231-791-2 Water 55-73 7790-86-5 232-227-8 Cerium Chloride 13-44 10099-58-8 233-237-5 Lanthanum 1-22 Chloride SECTION 4 FIRST AID MEASURES Description of First Aid Measures: Eye: Immediately move victim away from source of exposure and into fresh air. If irritation or redness develops, flush eyes with clean water and seek immediate medical attention. For direct contact, immediately hold eyelids apart and flush the affected eye(s) with clean water for at least 20 minutes. Seek immediate medical attention. Skin: In case of contact, wash skin and/or hair thoroughly with soap and water. Take off contaminated clothing and wash it before reuse. Get medical advice/attention if you feel unwell. Inhalation: No specific first aid measures are required. If exposed to levels above recommended exposure limits, remove person to fresh air and keep comfortable for breathing. Get medical advice/attention if you feel unwell. Ingestion: No specific first aid measures are required. As a precaution, rinse mouth. Do NOT induce vomiting. If exposed or concerned: get medical advice/attention. Most Important Symptoms and Effects, both Acute and Delayed: See Section 11. Revision Date: September 9, 2022 2 of Indication of Any Immediate Medical Attention and Special Treatment Needed: See Section 1 SECTION 5 FIRE FIGHTING MEASURES Suitable Extinguishing Media: Use extinguishing media suitable for surrounding area if this material is involved in a fire (e.g., fog, foam, dry chemical, or carbon dioxide). See also Section 10. Specific Hazards Arising from the Substance or Mixture: See Section 10. Special Protective Actions for Firefighters: None known. This material is non-combustible. SECTION 6 ACCIDENTAL RELEASE MEASURES Personal Precautions, Protective Equipment, and Emergency Procedures: Observe personal protective equipment (PPE) advice in Section 8. Environmental Precautions: Avoid contaminating soil or releasing this material into sewage and drainage systems and bodies of water (surface water or groundwater). See also Section 12. Methods and Material for Containment and Cleaning Up: Stop the source of the release if you can do it without risk. Eliminate all ignition sources. Spilled material should be swept up as soon as possible, observing precautions in Section 8. Where feasible and appropriate, remove contaminated soil. Secure load if safe to do so. For disposal, see Section 13. SECTION 7 HANDLING AND STORAGE Precautions for Safe Handling: Wash hands/skin thoroughly after handling. Wear protective gloves/protective clothing/eye protection/face protection. Conditions for Safe Storage: Store in original container in a cool, dry, well-ventilated area. SECTION 8 EXPOSURE CONTROLS / PERSONAL PROTECTION Control Parameters: Exposure limit values: Not available Appropriate Engineering Controls: Work/Hygienic practices: Consider the potential hazards of this material, applicable exposure limits, job activities, and other substances in the work place when designing engineering controls and selecting PPE. If engineering controls or work practices are not adequate to prevent exposure to harmful levels of this material, the PPE listed below is recommended. Ventilation: Ensure adequate ventilation. Additional ventilation or exhaust systems may be required. Revision Date: September 9, 2022 3 of Other equipment: The user should read and understand all instructions and limitations supplied with the equipment since protection is usually provided for a limited time or under certain circumstances. Individual Protection Measures / Personal Protective Equipment (PPE): Eye/Face Protection: Wear safety glasses with side shields, chemical goggles, or complete facial protection to safeguard against potential eye contact, irritation, or injury. Hands/Skin Protection: The use of gloves that are impermeable to the specific material handled or other impervious clothing is advised to prevent skin contact, possible irritation, and skin damage. Selection of protective clothing may include work gloves, apron, boots, and complete facial protection depending on operations conducted. Respiratory Protection: If exposure to nuisance levels of airborne material occurs when working with this material, wear a NIOSH/MSHA approved respirator that provides protection, such as: High Efficiency Particulate Air (HEPA) respirator and filter cartridge. Use a positive pressure air-supplying respirator if there is potential for uncontrolled release, exposure levels are not known, or any other circumstances where air-purifying respirators may not provide adequate protection. Respiratory protection program (e.g., OSHA's 29 CFR 1910.134 and ANSI Z88.2) requirements must be followed whenever workplace conditions warrant a respirator's use. SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES Information on Basic Physical and Chemical Properties: Note: The data below are typical values and do not constitute a specification. Appearance: Partition Coefficient Physical state: Liquid n-octanol/water: Not available Color: White to Amber Auto-ignition temperature: Not available Odor/Odor threshold: Not available pH (as supplied): 3.0-4.0 Decomposition Not available temperature: Melting/freezing point: -40°F Viscosity: Not available Boiling point/range: Not available Molecular weight: Not available Flash point: Not available Taste: Not available Evaporation rate: Not available Explosive properties: Not available Flammability: Non-flammable Oxidizing properties: Not available Upper/lower explosive limits: Not available Surface tension: Not available Vapor pressure: Not available Volatile component: Not available Water solubility: High Gas group: Not available Vapor density (Air = 1): Not available pH (as solution): Not available 1.4-1.6 g/cm3 Specific gravity (Water = 1): (solution) @ 20°C VOC: Not available (68°F) Relative density

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