# Terbium, powder, \-40 Mesh – ProChem SDS Text extracted from the original PDF. Tables, images, symbols and OCR may differ. Check the original PDF for safety information. - **Document title:** Terbium, powder, \-40 Mesh – ProChem SDS - **Publisher:** ProChem, Inc\. - **Material:** Terbium, powder, \-40 Mesh - **CAS number:** 7440\-27\-9 - **Product code / grade:** 3457 - **Document type:** SDS - **Original language:** English - **Region:** United States - **Revision date:** 07/14 - **Page count:** 4 - **Original filename:** prochem\-terbiumpowder40mesh\-3457\.pdf - **RESDS page:** https://resds\.com/document/terbium\-powder\-40\-mesh\-prochem\-en\-eb1a09ba47 - **Original PDF:** https://resds\.com/pdf/terbium\-powder\-40\-mesh\-prochem\-en\-eb1a09ba47\.pdf - **Source URL:** https://prochemonline\.com/wp\-content/uploads/2021/06/3457\.TerbiumPowder40Mesh\.pdf - **Description:** Collected by RESDS\. Original publisher PDF retained\. Original ProChem SDS for Terbium, powder, \-40 Mesh\. Product number 3457; revision 07/14\. Publication authorized by the user on 2026\-09\-14\. ## Page 1 ```text SECTION 1 PRODUCT AND COMPANY INFORMATION PRODUCT NAME: Terbium, powder, -40 Mesh PRODUCT NUMBER: 3457 CAS NUMBER: 7440-27-9 MANUFACTURER: Prochem, Inc. PHONE: 815-398-1788 826 Roosevelt Road FAX: 815-398-1810 Rockford, IL 61109 TOLL FREE: 800-795-8788 IN CASE OF TRANSPORTATION EMERGENCY CONTACT CHEM-TREC: 1-800-424-9300 SECTION 2 HAZARDS IDENTIFICATION CLASSIFICATION OF SUBSTANCE OR MIXTURE Pictogram Signal Word Danger Hazard Statements H228 Flammable solid H260 In contact with water releases flammable gases which may ignite spontaneously. Precautionary Phrases P210 Keep away from heat/sparks/open flames/hot surfaces. No smoking. P231+P232 Handle under inert gas. Protect from moisture. P241 Use explosion-proof electrical/ventilating/lighting/equipment P370+P378 In case of fire: Use for extinction: Special powder for metal fires. P402+P404 Store in a dry place. Store in a closed container. P501 Dispose of contents/container in accordance with loca/regional/national/international regulations. HMIS CLASSIFICATION: Health: 1 Fire: 3 Reactivity Hazard: 2 NFPA RATING: Health: 1 Flammability: 3 Reactivity Hazard: 2 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: No specific information on this physiological effects of ingestion. TERBIUM, POWDER, -40 MESH PAGE 1 ``` ## Page 2 ```text SECTION 3 COMPOSITION / INFORMATION ON INGREDIENTS Formula: Tb Molecular Weight: 158.92 CHEMICAL NAME CAS# % Terbium 7440-27-9 100 SECTION 4 FIRST AID MEASURES EYE EXPOSURE: Immediately flush the eyes with copious amounts of water for at least 15 minutes. Assure flushing under 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. Closely monitor the victim for signs of respiratory problems, such as difficulty in breathing, coughing, wheezing, or pain. In such cases, seek immediate medical assistance. INGESTION: Seek medical assistance immediately. Keep the victim calm. Give the victim water (only if conscious). Induce vomiting only if directed by medical personnel. SECTION 5 FIREFIGHTING MEASURES FLASH POINT: Not available AUTO IGNITION TEMPERATURE: Not available EXPLOSION LIMITS: Not available EXTINGUISHING MEDIUM: Dry chemical or class D metal fire agent. SPECIAL FIRE FIGHTING PROCEDURES: Wear self-contained, approved breathing apparatus and full protective clothing, including eye protection and boots. HAZARDOUS COMBUSTION AND DECOMPOSITION PRODUCTS: Terbium oxides SECTION 6 ACCIDENTAL RELEASE MEASURES PERSONAL PRECAUTIONS: Wear all appropriate equipment when using this material. Ensure adequate ventilation. Keep away from sources of ignition ENVIRONMENTAL PRECAUTIONS: Prevent spillage from entering drains or allow to be released into the environment. METHODS AND MATERIALS FOR CONTAINMENT AND CLEANING UP: In the case of a spill, the fine powder should be covered with sodium carbonate or dolomite in order to reduce the formation of dust. Sweep up with mixture. SECTION 7 HANDLING AND STORAGE PRECAUTIONS FOR SAFE HANDLING: Wear appropriate personal protective equipment. Avoid contact with skin and eyes. Use with adequate ventilation. Keep container closed when not in use. Handle under dry protective gas. Protect against electrostatic charges. CONDITIONS FOR SAFE STORAGE: Store material in a tightly sealed container in a cool dry place under argon. Handle in argon. Store away from air, water, moisture, oxidizing agents, halogens, and acid chlorides. Moisture and air sensititive. SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION EXPOSURE CONTROLS: Contains no substances with occupational exposure limit values. EYE PROTECTION: Wear chemical safety glasses or goggles and face shield. SKIN PROTECTION: Wear nitrile or rubber gloves and a flame resistant suit. VENTILATION: Provide local exhaust, preferably mechanical. RESPIRATOR: Use an approved respirator SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES COLOR AND FORM: Silver-gray powder ODOR: None MOLECULAR WEIGHT: 158.92 BOILING POINT: 3230° C TERBIUM, POWDER, -40 MESH PAGE 2 ``` ## Page 3 ```text SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES (Cont.) MELTING POINT: 1356° C SPECIFIC GRAVITY: 8.234 gm/ml VAPOR DENSITY: No data available SOLUBILITY: Reacts with water. SECTION 10 STABILITY AND REACTIVITY STABILITY: Stable HAZARDOUS POLYMERIZATION: Contact with water releases flammable gases. Reacts with strong oxidizing agents. CONDITIONS TO AVOID: Contact with hot water, mixtures of fine dust with the air. INCOMPATIBILITY: Oxidizing agents, acids, air, halogens, acid chlorides, and water. DECOMPOSITION PRODUCTS: Terbium oxides SECTION 11 TOXICOLOGICAL DATA ACUTE TOXICITY: Not available 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 To the best of our knowledge the toxicological effects of this compound have not been fully investigated. SECTION 12 ECOLOGICAL DATA No data available. SECTION 13 DISPOSAL CONSIDERATIONS Dispose of in according to local, state, and federal regulations. SECTION 14 TRANSPORTATION DATA DOT: UN3089 IATA: UN3089 Metal Powders, flammable, n.o.s. Metal Powder, flammable, n.o.s. (Terbium) (Terbium) Class 4.1 Class 4.1 PG II PG II Marine Pollutant: No SECTION 15 REGULATORY INFORMATION TSCA: Listed in the TSCA inventory DSCL (EEC): Listed on the DSCL inventory SARA 302/304: Not Listed SARA 311/312: Not available SARA (TITLE 313): Not Listed CALIFORNIA PROP. 65: Not Listed WHMIS CANADA: Class B-4: Flammable Solid. Class B-6: Reactive Flammable material. TERBIUM, POWDER, -40 MESH PAGE 3 ``` ## Page 4 ```text 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 PREPARED: 07/14 TERBIUM, POWDER, -40 MESH PAGE 4 ```