# Yttrium, powder – ProChem SDS Text extracted from the original PDF. Tables, images, symbols and OCR may differ. Check the original PDF for safety information. - **Document title:** Yttrium, powder – ProChem SDS - **Publisher:** ProChem, Inc\. - **Material:** Yttrium, powder - **CAS number:** 7440\-65\-5 - **Product code / grade:** 3826 - **Document type:** SDS - **Original language:** English - **Region:** United States - **Revision date:** 04/26 - **Page count:** 4 - **Original filename:** prochem\-yttriumpowder40mesh\-3826\.pdf - **RESDS page:** https://resds\.com/document/yttrium\-powder\-prochem\-en\-c2d3a5a8df - **Original PDF:** https://resds\.com/pdf/yttrium\-powder\-prochem\-en\-c2d3a5a8df\.pdf - **Source URL:** https://prochemonline\.com/wp\-content/uploads/2021/06/3826\.YttriumPowder\-1\.pdf - **Description:** Collected by RESDS\. Original publisher PDF retained\. Original ProChem SDS for Yttrium, powder\. Product number 3826; revision 04/26\. Publication authorized by the user on 2026\-09\-14\. ## Page 1 ```text SECTION 1 PRODUCT AND COMPANY INFORMATION PRODUCT NAME: Yttrium, powder PRODUCT NUMBER: 3826 CAS NUMBER: 7440-65-5 MANUFACTURER: ProChem, Inc. PHONE: 815-398-1788 826 Roosevelt Road TOLL FREE: 800-795-8788 Rockford, IL 61109 IN CASE OF TRANSPORTATION EMERGENCY CONTACT CHEM-TREC: 1-800-424-9300 SECTION 2 HAZARDS IDENTIFICATION CLASSIFICATION OF SUBSTANCE OR MIXTURE Pictogram Signal Word Warning Hazard Statements H228 Flammable solid. Precautionary Phrases P210 Keep away from heat/sparks/open flames/hot surfaces. P222 Do not allow contact with air. P231 Handle under inert gas. P240 Ground/bond container and receiving equipment. P241 Use explosion-proof electrical/ventilating/lighting equipment. P261 Avoid breathing dust/fume/gas/mist/vapors/spray. P280 Wear protective gloves/eye protection/face protection. P302+P352 IF ON SKIN: Wash with plenty of soap and water. P304+P340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing. P363 Wash contaminated clothing before reuse. P370+P378 In case of fire: Use dry sand, dry chemical or alcohol-resistant foam for extinction. HMIS CLASSIFICATION: Health: 2 Fire: 3 Reactivity Hazard: 3 NFPA RATING: Health: 2 Flammability: 3 Reactivity Hazard: 3 YTTRIUM POWDER PAGE 1 ``` ## Page 2 ```text SECTION 2 HAZARDS IDENTIFICATION (Cont.) EYE CONTACT: May cause slight to mild irritation of the eyes. SKIN CONTACT: May cause slight to mild irritation of the skin. INHALATION: Inhalation of fine dust may be irritating to the nasal cavity, mucous membranes, and respiratory tract. INGESTION: May be harmful if swallowed. SECTION 3 COMPOSITION / INFORMATION ON INGREDIENTS Formula: Y Molecular Weight: 88.91 CHEMICAL NAME CAS# % Yttrium powder 7440-65-5 100 SECTION 4 FIRST AID MEASURES EYE EXPOSURE: Immediately flush the eyes with copious amounts of water for at least 15 minutes. Assure flushing under the eyelids. A victim may need assistance in keeping their eyelids open. Get immediate competent medical attention. SKIN EXPOSURE: Wash affected area with water. Remove contaminated clothes if necessary. Seek medical assistance if irritation persists INHALATION: Remove to fresh air and keep at rest. If breathing is difficult, give oxygen. If not breathing, give artificial respiration. Get medical attention if necessary. INGESTION: Seek medical assistance immediately. Keep the victim calm. Give the victim water (only if conscious). Induce vomiting if directed by medical personnel. SECTION 5 FIREFIGHTING MEASURES FLASH POINT: Not available AUTO IGNITION TEMPERATURE: Not available EXPLOSION LIMITS: Not available EXTINGUISHING MEDIUM: Special powder for metal fires. Do not use water. SPECIAL FIRE FIGHTING PROCEDURES: Wear self-contained, approved breathing apparatus and full protective clothing, including eye protection and boots. HAZARDOUS COMBUSTION AND DECOMPOSITION PRODUCTS: Yttrium oxides UNUSUAL FIRE OR EXPLOSION HAZARDS: Flammable solid. Burns with intense heat. Dust may form explosive mixtures with air. Evolves hydrogen with hot water. SECTION 6 ACCIDENTAL RELEASE MEASURES PERSONAL PRECAUTIONS: Wear all appropriate equipment when using this material. Ensure adequate ventilation. Keep unprotected persons away. Keep away from sources of ignition. ENVIRONMENTAL PRECAUTIONS: Prevent spillage from entering drains or allowing to be released into the environment. METHODS AND MATERIALS FOR CONTAINMENT AND CLEANING UP: Remove all sources of ignition. Use Spark-proof tools and explosion-proof equipment. Sweep up and shovel into suitable containers for disposal. SECTION 7 HANDLING AND STORAGE PRECAUTIONS FOR SAFE HANDLING: Wear appropriate personal protective equipment. Use with adequate ventilation. Avoid contact with skin and eyes. Avoid formation of dust. Keep away from sources of ignition-No smoking. CONDITIONS FOR SAFE STORAGE: Store in cool, dry, and well-ventilated area. Store in a tightly sealed container under an inert atmosphere of argon. Store away from air, moisture, and water. Moisture and air sensitive. Protect from humidity and water. Keep away from heat, sparks, and flame. Keep under nitrogen. Store in flammables area. YTTRIUM POWDER PAGE 2 ``` ## Page 3 ```text SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION EXPOSURE CONTROLS Component Exposure Limits Basis Entity Yttrium 1 mg/m3 TLV ACGIH 1 mg/m3 PEL OSHA 1 mg/m3 REL NIOSH TLV: Threshold Limit Value over 8 hours of work. REL: Recommended Exposure Limit PEL: Permissible Exposure Limit EYE PROTECTION: Wear chemical safety glasses or goggles. SKIN PROTECTION: Wear nitrile or rubber gloves, and ensure that your protective clothing is fire retardant. VENTILATION: Provide local exhaust, preferably mechanical. RESPIRATOR: Use an approved respirator. ADDITIONAL PROTECTION: Provide eyewash stations, quick-drench showers and washing facilities accessible to areas of use and handling. SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES COLOR AND FORM: Gray powder ODOR: None MOLECULAR WEIGHT: 88.91 BOILING POINT: 3338°C MELTING POINT: 1522°C SPECIFIC GRAVITY: 4.47 VAPOR DENSITY: No data available SOLUBILITY IN WATER: Insoluble SECTION 10 STABILITY AND REACTIVITY STABILITY: Stable HAZARDOUS POLYMERIZATION: Will not occur CONDITIONS TO AVOID: Contact with hot water. Heat, flames, and sparks. Extremes of temperature and direct sunlight. INCOMPATIBILITY: Strong oxidizing agents, water, halogens, halocarbons, strong acids and bases, and mineral acids. DECOMPOSITION PRODUCTS: Yttrium Oxides SECTION 11 TOXICOLOGICAL DATA ACUTE TOXICITY: LD50 Oral – Rat – female - >2,000 mg/kg. CARCINOGENIC EFFECTS: No components of this product present at levels greater than or equal to 0.1% is identified a carcinogen. MUTAGENIC EFFECTS: Not available TETRATOGENIC EFFECTS: Not available RTECS: ZG2980000 To the best of our knowledge the toxicological effects of this compound have not been fully investigated. SECTION 12 ECOLOGICAL DATA Toxicity to fish - LC50 (Oncorhynchus mykiss (rainbow trout)): > 0.61 mg/l – 96h. SECTION 13 DISPOSAL CONSIDERATIONS Dispose of in according to local, state, and federal regulations. YTTRIUM POWDER PAGE 3 ``` ## Page 4 ```text SECTION 14 TRANSPORTATION DATA DOT: UN3089 IATA: UN3089 Metal powders, flammable, n.o.s. Metal powder, flammable, n.o.s. (Yttrium) (Yttrium) CLASS 4.1 CLASS 4.1 PG III PG III Marine Pollutant: No SECTION 15 REGULATORY INFORMATION TSCA: Listed in the TSCA inventory SARA 302/304: Not Listed SARA 311/312: Fire Hazard, Acute Health Hazard SARA (TITLE 313): Not Listed CALIFORNIA PROP. 65: Not Listed MASSACHUSETTS RIGHT TO KNOW: Yttrium PENNSYLVANIA RIGHT TO KNOW: Yttrium NEW JERSEY RIGHT TO KNOW: Yttrium WHMIS CANADA: Class B-4: Flammable solid SECTION 16 OTHER INFORMATION DISCLAIMER: The information herein is believed to be accurate and reliable as of the date compiled. However, ProChem, Inc. makes no representation, warranty, or guarantee of any kind with respect to the information in this document or any use of the product based on the information. DATE REVISED: 04/26 SDS DEPT. YTTRIUM POWDER PAGE 4 ```