# Thulium \(III\) oxide – ProChem SDS Text extracted from the original PDF. Tables, images, symbols and OCR may differ. Check the original PDF for safety information. - **Document title:** Thulium \(III\) oxide – ProChem SDS - **Publisher:** ProChem, Inc\. - **Material:** Thulium \(III\) oxide - **CAS number:** 12036\-44\-1 - **Product code / grade:** 3616 - **Document type:** SDS - **Original language:** English - **Region:** United States - **Revision date:** 05/14 - **Page count:** 4 - **Original filename:** prochem\-thuliumoxide\-3616\.pdf - **RESDS page:** https://resds\.com/document/thulium\-iii\-oxide\-prochem\-en\-3c50d1749a - **Original PDF:** https://resds\.com/pdf/thulium\-iii\-oxide\-prochem\-en\-3c50d1749a\.pdf - **Source URL:** https://prochemonline\.com/wp\-content/uploads/2021/06/3616\.ThuliumOxide\.pdf - **Description:** Collected by RESDS\. Original publisher PDF retained\. Original ProChem SDS for Thulium \(III\) oxide\. Product number 3616; revision 05/14\. Publication authorized by the user on 2026\-09\-14\. ## Page 1 ```text SECTION 1 PRODUCT AND COMPANY INFORMATION PRODUCT NAME: Thulium (III) oxide PRODUCT NUMBER: 3616 CAS NUMBER: 12036-44-1 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 Warning Hazard Statements H315 Causes skin irritation. H319 Causes serious eye irritation. H335 May cause respiratory irritation. Precautionary Phrases P261 Avoid breathing dust/fume/gas/mist/vaporus/spray. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P302+P352 IF ON SKIN: Wash with plenty of soap and water HMIS CLASSIFICATION: Health: 1 Flammability: 0 Reactivity: 1 NFPA RATING: Health: 1 Fire: 0 Reactivity Hazard: 1 EYE CONTACT: May cause slight to mild irritation of the eyes. SKIN CONTACT: May cause slight to mild irritation of the skin. INHALATION: May be irritating to the nose, mucous membranes, and respiratory tract. INGESTION: Harmful if swallowed. THULIUM OXIDE PAGE 1 ``` ## Page 2 ```text SECTION 3 COMPOSITION / INFORMATION ON INGREDIENTS Formula: Tm2O3 Molecular Weight: 385.87 CHEMICAL NAME CAS# % ACGIH (TWA) OSHA (PEL) Thulium (III) oxide 12036-44-1 100 No data No data 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 victim to fresh air. 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: Product is not flammable AUTO IGNITION TEMPERATURE: Not applicable EXPLOSION LIMITS: Not applicable EXTINGUISHING MEDIUM: Use fire fighting measures that suit the surrounding fire. SPECIAL FIRE FIGHTING PROCEDURES: If involved in a fire, fire fighters should be equipped with a NIOSH approved positive self-contained breathing apparatus, flame and chemical resistant clothing, hats, boots, and gloves. HAZARDOUS COMBUSTION AND DECOMPOSITION PRODUCTS: Metal oxide fume SECTION 6 ACCIDENTAL RELEASE MEASURES PERSONAL PRECAUTIONS: Wear approved personal protective equipment. Avoid dust formation. Avoid breathing dust, vapors, mist or gas. Ensure adequate ventilation. ENVIRONMENTAL PRECAUTIONS: Do not let product enter drains or allow to be released into the environment. METHODS AND MATERIALS FOR CONTAINMENT AND CLEANING UP: Small spills can be mixed with vermiculite or sodium carbonate and swept up. SECTION 7 HANDLING AND STORAGE PRECAUTIONS FOR SAFE HANDLING: Avoid contact with skin and eyes. Avoid formation of dust. Ensure adequate ventilation. CONDITIONS FOR SAFE STORAGE: Store material in a tightly sealed container. Store in a cool and dry area. Store away from oxidizing agents. SECTION 8 EXPOSURE CONTROLS AND PERSONAL PROTECTION EYE PROTECTION: Always wear approved safety glasses with side shields, safety goggles, or face shield when handling a chemical substance in the laboratory. SKIN PROTECTION: Chemical resistant gloves. VENTILATION: Handle in an efficient chemical fume hood. RESPIRATOR: If in form of fine dust and ventilation is not available a respirator should be worn. The use of respirators requires a Respirator Protection Program to be in compliance with 29 CFR 19-10.134. SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES COLOR AND FORM: Light yellow powder MOLECULAR WEIGHT: 385.87 BOILING POINT: 3945° C MELTING POINT: 2425° C THULIUM OXIDE PAGE 2 ``` ## Page 3 ```text SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES (Cont.) SPECIFIC GRAVITY: No data available VAPOR PRESSURE: No data SOLUBILITY: Insoluble SECTION 10 STABILITY AND REACTIVITY STABILITY: Air and moisture stable HAZARDOUS POLYMERIZATION: No hazardous polymerization CONDITIONS TO AVOID: Moisture INCOMPATIBILITY: Strong oxidizing agents and carbon dioxide DECOMPOSITION PRODUCTS: Metal oxide fume SECTION 11 TOXICOLOGICAL DATA CARCINOGENIC EFFECTS: No components of this product present at levels greater than or equal to 0.1% is identified as a confirmed carcinogen by IARC, ACGIH, NTP, and OSHA. MUTAGENIC EFFECTS: Not available TETRATOGENIC EFFECTS: No data available To the best of our knowledge the toxicological effects of this compound have not been fully investigated. SECTION 12 ECOLOGICAL DATA No information available SECTION 13 DISPOSAL CONSIDERATIONS Dispose of in according to local, state, and federal regulations. SECTION 14 TRANSPORTATION DATA Non-hazardous material SECTION 15 REGULATORY INFORMATION TSCA: Not listed in the TSCA inventory SARA 313 COMPONENTS: This material does not contain any chemical components with know CAS numbers that exceed the threshold (De Minimis) reporting levels established by SARA Title III, Section 313. SARA 302 COMPONENTS: No chemicals in this material are subject to the reporting requirements of SARA Title III, Section 302. SARA 311/312 HAZARDS: Acute Health Hazard MASSACHUSETTS RIGHT TO KNOW COMPONENTS: No components are subject to the Massachusetts Right To Know Act. PENNSYLVANIA RIGHT TO KNOW COMPONENTS: Thulium oxide NEW JERSEY RIGHT TO KNOW COMPONENTS: Thulium oxide CALIFORNIA PROP. 65 COMPONENTS: This product does not contain any chemicals known to State of California to cause cancer, birth defects, or any other reproductive harm. THULIUM OXIDE 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: 05/14 THULIUM OXIDE PAGE 4 ```