# Lanthanum \(III\) 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:** Lanthanum \(III\) oxide – ProChem SDS - **Publisher:** ProChem, Inc\. - **Material:** Lanthanum \(III\) oxide - **CAS number:** 1312\-81\-8 - **Product code / grade:** 2164 - **Document type:** SDS - **Original language:** English - **Region:** United States - **Revision date:** 05/14 - **Page count:** 4 - **Original filename:** prochem\-lanthanumoxide\-2164\.pdf - **RESDS page:** https://resds\.com/document/lanthanum\-iii\-oxide\-prochem\-en\-b9c3b1f97b - **Original PDF:** https://resds\.com/pdf/lanthanum\-iii\-oxide\-prochem\-en\-b9c3b1f97b\.pdf - **Source URL:** https://prochemonline\.com/wp\-content/uploads/2021/06/2164\.LanthanumOxide\.pdf - **Description:** Collected by RESDS\. Original publisher PDF retained\. Original ProChem SDS for Lanthanum \(III\) oxide\. Product number 2164; revision 05/14\. Publication authorized by the user on 2026\-09\-14\. ## Page 1 ```text SECTION 1 PRODUCT AND COMPANY INFORMATION PRODUCT NAME: Lanthanum (III) oxide PRODUCT NUMBER: 2164 CAS NUMBER: 1312-81-8 SYNONYMS: Lanthanum sesquioxide, lanthane 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/vapours/spray. P271 Use only outdoors or in a well-ventilated area. P280 Wear protective gloves/protective clothing/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. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P403+P233 Store in a well-ventilated place. Keep container tightly closed. HMIS CLASSIFICATION: Health: 1 Flammability: 0 Reactivity: 0 NFPA RATING: Health: 1 Fire: 0 Reactivity Hazard: 0 LANTHANUM OXIDE PAGE 1 ``` ## Page 2 ```text SECTION 2 HAZARDS IDENTIFICATION (Cont.) EYE CONTACT: May cause irritation of the eyes. SKIN CONTACT: May cause irritation of the skin. INHALATION: May cause respiratory irritation. INGESTION: May be harmful if swallowed. SECTION 3 COMPOSITION / INFORMATION ON INGREDIENTS Formula: La2O3 Molecular Weight: 325.82 CHEMICAL NAME CAS# % Lanthanum (III) oxide 1312-81-8 100 SECTION 4 FIRST AID MEASURES EYE EXPOSURE: Flush eyes with water for several minutes. Seek medical attention. SKIN EXPOSURE: After contact with skin wash immediately with plenty of water. Cover the irritated skin with an emollient. If irritation persists, seek medical attention. INHALATION: Allow the victim to rest in a well-ventilated area. Seek immediate medical attention. INGESTION: Rinse mouth with water. Never give anything by mouth to an unconscious person. Seek medical attention. 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: Wear self-contained breathing apparatus for fire fighting if necessary. HAZARDOUS COMBUSTION AND DECOMPOSITION PRODUCTS: None SECTION 6 ACCIDENTAL RELEASE MEASURES PERSONAL PRECAUTIONS: Wear personal protective equipment. Avoid dust formation. Avoid breathing vapors, mist or gas. ENVIRONMENTAL PRECAUTIONS: Do not let product enter drains or allow to be released into the environment. METHODS AND MATERIALS FOR CONTAINMENT AND CLEANING UP: Sweep up and shovel. Keep in suitable, closed container for disposal. Ensure adequate ventilation. SECTION 7 HANDLING AND STORAGE PRECAUTIONS FOR SAFE HANDLING: Provide appropriate exhaust ventilation. CONDITIONS FOR SAFE STORAGE: Keep container tightly closed in a dry and well-ventilated place. Store under inert gas. Air sensitive. Hygroscopic. Keep in a dry place. 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. LANTHANUM OXIDE PAGE 2 ``` ## Page 3 ```text SECTION 9 PHYSICAL AND CHEMICAL PROPERTIES COLOR AND FORM: White solid MOLECULAR WEIGHT: 325.82 BOILING POINT: 4,200° C MELTING POINT: 2,307° C SPECIFIC GRAVITY: 6.51 gm/ml VAPOR PRESSURE: Not applicable SOLUBILITY: Insoluble SECTION 10 STABILITY AND REACTIVITY STABILITY: Stable HAZARDOUS POLYMERIZATION: Will not occur CONDITIONS TO AVOID: Moisture INCOMPATIBILITY: Strong acids, Strong oxidizing agents, and carbon dioxide. DECOMPOSITION PRODUCTS: None SECTION 11 TOXICOLOGICAL DATA ACUTE TOXICTY: LD50 Oral – rat – male and female - > = 10,000 mg/kg. LC0 Inhalation – rat – male and female – 4 h - > = 5.3 mg/ll. 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: Not available RTECS: OE5330000 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: 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. MASSACHUSETTS RIGHT TO KNOW COMPONENTS: No components are subject to the Massachusetts Right To Know Act. PENNSYLVANIA RIGHT TO KNOW COMPONENTS: Lanthanum oxide NEW JERSEY RIGHT TO KNOW COMPONENTS: Lanthanum 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. LANTHANUM 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 LANTHANUM OXIDE PAGE 4 ```