Lanthanum(III) 2-methoxyethoxide, 99.9% (REO), 5% w/v in 2-methoxyethanol ALFAA42522 SDS

Page 1 / 9 SAFETY DATA SHEET Revision Date 05-Aug-2026 Version 6

ALFAA42522

Lanthanum(III) 2-methoxyethoxide, 99.9% (REO), 5% w/v in 2-methoxyethanol

SECTION 1. IDENTIFICATION OF THE SUBSTANCE/MIXTURE AND OF THE COMPANY/UNDERTAKING

产品说明:产品说明:产品说明:产品说明: 2-甲氧基乙氧基镧(III)2-甲氧基乙氧基镧(III)2-甲氧基乙氧基镧(III)2-甲氧基乙氧基镧(III)，5%5%5%5% w/vw/vw/vw/v2-甲氧基乙醇溶液2-甲氧基乙醇溶液2-甲氧基乙醇溶液2-甲氧基乙醇溶液 Product Description: Lanthanum(III) 2-methoxyethoxide, 99.9% (REO), 5% w/v in 2-methoxyethanol

Cat No. : 42522 Molecular Formula C9 H21 LaO6

Supplier Avocado Research Chemicals Ltd. (Part of Thermo Fisher Scientific) Shore Road, Heysham Lancashire, LA3 2XY, United Kingdom Office Tel: +44 (0) 1524 850506 Office Fax: +44 (0) 1524 850608

Emergency Telephone Number For information US call: 001-800-227-6701 / Europe call: +32 14 57 52 11 Emergency Number US:001-201-796-7100 / Europe: +32 14 57 52 99 CHEMTREC Tel. No. US:001-800-424-9300 / Europe:001-703-527-3887

E-mail address begel.sdsdesk@thermofisher.com

Recommended Use Laboratory chemicals. Uses advised against No Information available

SECTION 2. HAZARD IDENTIFICATION

Physical State Appearance Odor Liquid No information available Characteristic

Emergency Overview Flammable liquid and vapor. May damage fertility or the unborn child. Harmful if swallowed. Harmful in contact with skin. Harmful if inhaled. Causes damage to organs. May cause damage to organs through prolonged or repeated exposure. Moisture sensitive.

Classification of the substance or mixture

Flammable liquids. Category 3 Acute Oral Toxicity Category 4 Acute Dermal Toxicity Category 4 Acute Inhalation Toxicity - Vapors Category 4 Reproductive Toxicity Category 1B Specific target organ toxicity - (single exposure) Category 1 Specific target organ toxicity - (repeated exposure) Category 2

Label Elements

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Signal Word Danger

Hazard Statements H226 - Flammable liquid and vapor H370 - Causes damage to organs H373 - May cause damage to organs through prolonged or repeated exposure H302 + H312 + H332 - Harmful if swallowed, in contact with skin or if inhaled H360 - May damage fertility or the unborn child

Precautionary Statements Prevention P201 - Obtain special instructions before use P202 - Do not handle until all safety precautions have been read and understood P210 - Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking P233 - Keep container tightly closed P240 - Ground and bond container and receiving equipment P242 - Use non-sparking tools P243 - Take action to prevent static discharges P260 - Do not breathe dust/fume/gas/mist/vapors/spray P264 - Wash face, hands and any exposed skin thoroughly after handling P270 - Do not eat, drink or smoke when using this product P271 - Use only outdoors or in a well-ventilated area P280 - Wear protective gloves/protective clothing/eye protection/face protection Response P303 + P361 + P353 - IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower P304 + P340 - IF INHALED: Remove person to fresh air and keep comfortable for breathing P330 - Rinse mouth P370 + P378 - In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish P362 + P364 - Take off contaminated clothing and wash it before reuse P308 + P311 - IF exposed or concerned: Call a POISON CENTER or doctor Storage P403 + P235 - Store in a well-ventilated place. Keep cool Disposal P501 - Dispose of contents/ container to an approved waste disposal plant

Physical and Chemical Hazards Vapors may cause flash fire or explosion. Flammable liquid. Health Hazards May damage fertility or the unborn child. Harmful if swallowed. Harmful in contact with skin. Harmful if inhaled. Causes damage to organs. May cause damage to organs through prolonged or repeated exposure. Environmental hazards Contains no substances known to be hazardous to the environment or not degradable in waste water treatment plants. Is not likely mobile in the environment due its low water solubility. Spillage unlikely to penetrate soil. The product is insoluble and floats on water.

Toxic to terrestrial vertebrates. This product does not contain any known or suspected endocrine disruptors.

SECTION 3. COMPOSITION/INFORMATION ON INGREDIENTS

Component CAS No Weight % 2-Methoxyethanol 109-86-4 95.00 Lanthanum(III) 2-methoxyethoxide 115685-56-8 5.00

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SECTION 4. FIRST AID MEASURES

General Advice If symptoms persist, call a physician.

Eye Contact Rinse immediately with plenty of water, also under the eyelids, for at least 15 minutes. Get medical attention.

Skin Contact Wash off immediately with plenty of water for at least 15 minutes. If skin irritation persists, call a physician.

Inhalation Remove to fresh air. If not breathing, give artificial respiration. Get medical attention if symptoms occur.

Ingestion Clean mouth with water and drink afterwards plenty of water.

Most important symptoms and effects Difficulty in breathing. Symptoms of overexposure may be headache, dizziness, tiredness, nausea and vomiting

Self-Protection of the First Aider Ensure that medical personnel are aware of the material(s) involved, take precautions to protect themselves and prevent spread of contamination.

Notes to Physician Treat symptomatically.

SECTION 5. FIRE-FIGHTING MEASURES

Suitable Extinguishing Media Water mist may be used to cool closed containers.

Extinguishing media which must not be used for safety reasons No information available.

Specific Hazards Arising from the Chemical Flammable. Containers may explode when heated. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back.

Protective Equipment and Precautions for Firefighters As in any fire, wear self-contained breathing apparatus pressure-demand, MSHA/NIOSH (approved or equivalent) and full protective gear.

SECTION 6. ACCIDENTAL RELEASE MEASURES

Personal Precautions Ensure adequate ventilation. Use personal protective equipment as required. Remove all sources of ignition. Take precautionary measures against static discharges.

Environmental Precautions Should not be released into the environment. See Section 12 for additional Ecological Information. Do not allow material to contaminate ground water system. Do not flush into surface water or sanitary sewer system.

Methods for Containment and Clean Up Soak up with inert absorbent material. Keep in suitable, closed containers for disposal. Remove all sources of ignition. Use spark-proof tools and explosion-proof equipment.

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Refer to protective measures listed in Sections 8 and 13.

SECTION 7. HANDLING AND STORAGE

Handling Wear personal protective equipment/face protection. Ensure adequate ventilation. Do not get in eyes, on skin, or on clothing. Avoid ingestion and inhalation. Keep away from open flames, hot surfaces and sources of ignition. Use only non-sparking tools. Take precautionary measures against static discharges.

Storage Keep container tightly closed in a dry and well-ventilated place. Keep away from heat, sparks and flame.

Specific Use(s) Use in laboratories

SECTION 8. EXPOSURE CONTROLS/PERSONAL PROTECTION

Control Parameters

Component China ACGIH TLV OSHA PEL NIOSH 2-Methoxyethanol TWA: 15 mg/m3 TWA: 0.1 ppm (Vacated) TWA: 25 ppm IDLH: 200 ppm Skin Skin (Vacated) TWA: 80 mg/m3 REL = 0.1 ppm (TWA) Skin REL = 0.3 mg/m3 (TWA) TWA: 25 ppm TWA: 80 mg/m3

Component Hong Kong Thailand European Union The United Kingdom 2-Methoxyethanol TWA: 5 ppm TWA: 1 ppm (8h) STEL: 3 ppm 15 min TWA: 16 mg/m3 Skin STEL: 9 mg/m3 15 min TWA: 1 ppm 8 hr TWA: 3 mg/m3 8 hr Skin

Legend

ACGIH - American Conference of Governmental Industrial Hygienists OSHA - Occupational Safety and Health Administration NIOSH: NIOSH - National Institute for Occupational Safety and Health

Monitoring methods BS EN 14042:2003 Title Identifier: Workplace atmospheres. Guide for the application and use of procedures for the assessment of exposure to chemical and biological agents. MDHS70 General methods for sampling airborne gases and vapours MDHS 88 Volatile organic compounds in air. Laboratory method using diffusive samplers, solvent desorption and gas chromatography MDHS 96 Volatile organic compounds in air - Laboratory method using pumped solid sorbent tubes, solvent desorption and gas chromatography MDHS 91 Metals and metalloids in workplace air by X-ray fluorescence spectrometry MDHS 99 Metals in air by ICP-AES

Exposure Controls

Engineering Measures Ensure adequate ventilation, especially in confined areas. Use explosion-proof electrical/ventilating/lighting equipment. Wherever possible, engineering control measures such as the isolation or enclosure of the process, the introduction of process or equipment changes to minimise release or contact, and the use of properly designed ventilation systems, should be adopted to control hazardous materials at source.

Personal protective equipment

Eye Protection Wear safety glasses with side shields (or goggles) (European standard - EN 166)

Hand Protection Protective gloves

Glove material Breakthrough time Glove thickness EU standard Glove comments Butyl rubber See manufacturers - (minimum requirement) ______________________________________________________________________________________________ Page 4

ALFAA42522 SAFETY DATA SHEET Revision Date 05-Aug-2026Page 5 / 9 Lanthanum(III) 2-methoxyethoxide, 99.9% (REO), 5% w/v in 2-methoxyethanol ______________________________________________________________________________________________ recommendations EN 374 Inspect gloves before use. Please observe the instructions regarding permeability and breakthrough time which are provided by the supplier of the gloves. (Refer to manufacturer/supplier for information) Ensure gloves are suitable for the task: Chemical compatability, Dexterity, Operational conditions, User susceptibility, e.g. sensitisation effects, also take into consideration the specific local conditions under which the product is used, such as the danger of cuts, abrasion. Remove gloves with care avoiding skin contamination.

Skin and body protection Long sleeved clothing

Respiratory Protection When workers are facing concentrations above the exposure limit they must use appropriate certified respirators. To protect the wearer, respiratory protective equipment must be the correct fit and be used and maintained properly

Large scale/emergency use In case of insufficient ventilation, wear suitable respiratory equipment Recommended Filter type: Multi-purpose/ABEK conforming to EN14387

Small scale/Laboratory use Use a NIOSH/MSHA or European Standard EN 149:2001 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced. When RPE is used a face piece Fit Test should be conducted

Hygiene Measures Handle in accordance with good industrial hygiene and safety practice.

Environmental exposure controls No information available.

SECTION 9. PHYSICAL AND CHEMICAL PROPERTIES

Appearance Physical State Liquid

Odor Characteristic Odor Threshold No data available pH 4 Melting Point/Range No data available Softening Point No data available Boiling Point/Range 124 °C / 255.2 °F Flash Point 40 °C / 104 °F Method - No information available Evaporation Rate No data available Flammability (solid,gas) Not applicable Liquid Explosion Limits No data available

Vapor Pressure 23 hPa @ 20 °C Vapor Density No data available (Air = 1.0) Specific Gravity / Density 0.96 g/cm3 @ 20 °C Bulk Density Not applicable Liquid Water Solubility Immiscible Solubility in other solvents No information available Partition Coefficient (n-octanol/water) Component log Pow 2-Methoxyethanol -0.77 Autoignition Temperature No data available Decomposition Temperature No data available Viscosity No data available Explosive Properties explosive air/vapour mixtures possible Oxidizing Properties No information available

Molecular Formula C9 H21 LaO6 Molecular Weight 364.17

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SECTION 10. STABILITY AND REACTIVITY

Stability Moisture sensitive.

Hazardous Reactions None under normal processing. Hazardous Polymerization No information available.

Conditions to Avoid Keep away from open flames, hot surfaces and sources of ignition.

Materials to avoid No information available.

Hazardous Decomposition Products Carbon monoxide (CO). Carbon dioxide (CO2). Lanthanum oxide.

SECTION 11. TOXICOLOGICAL INFORMATION

Product Information

(a) acute toxicity; Toxicology data for the components

Component LD50 Oral LD50 Dermal LC50 Inhalation 2-Methoxyethanol LD50 = 2370 mg/kg ( Rat ) LD50 = 1280 mg/kg ( Rabbit ) LC50 = 1478 ppm ( Rat ) 7 h

(b) skin corrosion/irritation; No data available

(c) serious eye damage/irritation; No data available

(d) respiratory or skin sensitization; Respiratory No data available Skin No data available

(e) germ cell mutagenicity; No data available

(f) carcinogenicity; No data available

There are no known carcinogenic chemicals in this product

(g) reproductive toxicity; Category 1B

(h) STOT-single exposure; Category 1

Results / Target organs Immune system

(i) STOT-repeated exposure; Category 2

Target Organs Thymus.

(j) aspiration hazard; No data available

Symptoms / effects,both acute and Symptoms of overexposure may be headache, dizziness, tiredness, nausea and vomiting delayed

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SECTION 12. ECOLOGICAL INFORMATION

Ecotoxicity effects May cause long-term adverse effects in the environment. Do not allow material to contaminate ground water system.

Component Freshwater Fish Water Flea Freshwater Algae Microtox 2-Methoxyethanol LC50: = 9650 mg/L, 96h static (Lepomis macrochirus) LC50: = 16000 mg/L, 96h static (Oncorhynchus mykiss) LC50: = 10000 mg/L, 96h static (Lepomis macrochirus)

Persistence and Degradability Product contains heavy metals. Discharge into the environment must be avoided. Special pre-treatment is necessary Persistence May persist, based on information available. Degradation in sewage Contains substances known to be hazardous to the environment or not degradable in waste treatment plant water treatment plants.

Bioaccumulative Potential May have some potential to bioaccumulate

Component log Pow Bioconcentration factor (BCF) 2-Methoxyethanol -0.77 No data available

Mobility in soil Spillage unlikely to penetrate soil The product is insoluble and floats on water Is not likely mobile in the environment due its low water solubility

Endocrine Disruptor Information This product does not contain any known or suspected endocrine disruptors Persistent Organic Pollutant This product does not contain any known or suspected substance Ozone Depletion Potential This product does not contain any known or suspected substance

SECTION 13. DISPOSAL CONSIDERATIONS

Waste from Residues/Unused Waste is classified as hazardous. Dispose of in accordance with the European Directives Products on waste and hazardous waste. Dispose of in accordance with local regulations.

Contaminated Packaging Dispose of this container to hazardous or special waste collection point. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep product and empty container away from heat and sources of ignition.

Other Information Waste codes should be assigned by the user based on the application for which the product was used. Do not flush to sewer. Can be landfilled or incinerated, when in compliance with local regulations.

SECTION 14. TRANSPORT INFORMATION

Road and Rail Transport

UN-No UN1188 Proper Shipping Name ETHYLENE GLYCOL MONOMETHYL ETHER Hazard Class 3 Packing Group III

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UN-No UN1188 Proper Shipping Name ETHYLENE GLYCOL MONOMETHYL ETHER Hazard Class 3 Packing Group III

IATA

UN-No UN1188 Proper Shipping Name ETHYLENE GLYCOL MONOMETHYL ETHER Hazard Class 3 Packing Group III

Special Precautions for User No special precautions required

SECTION 15. REGULATORY INFORMATION

International Inventories X = listed, China (IECSC), Europe (EINECS/ELINCS/NLP), U.S.A. (TSCA), Canada (DSL/NDSL), Philippines (PICCS), Japan (ENCS), Japan (ISHL), Australia (AICS), Korea (KECL).

Component The List of IECSC EINECS TSCA DSL PICCS ENCS ISHL AICS KECL Inventory of dangerous Hazardous goods GB Chemicals 12268 - (2015 2012 Edition) 2-Methoxyethanol X X X 203-713-7 X X X X X X KE-23272

National Regulations

SECTION 16. OTHER INFORMATION

Prepared By Health, Safety and Environmental Department Revision Date 05-Aug-2026 Revision Summary Not applicable.

Training Advice Chemical hazard awareness training, incorporating labelling, Safety Data Sheets (SDS), Personal Protective Equipment (PPE) and hygiene.

Legend

CAS - Chemical Abstracts Service TSCA - United States Toxic Substances Control Act Section 8(b) Inventory EINECS/ELINCS - European Inventory of Existing Commercial Chemical DSL/NDSL - Canadian Domestic Substances List/Non-Domestic Substances/EU List of Notified Chemical Substances Substances List PICCS - Philippines Inventory of Chemicals and Chemical Substances ENCS - Japanese Existing and New Chemical Substances IECSC - Chinese Inventory of Existing Chemical Substances AICS - Australian Inventory of Chemical Substances KECL - Korean Existing and Evaluated Chemical Substances NZIoC - New Zealand Inventory of Chemicals

WEL - Workplace Exposure Limit TWA - Time Weighted Average ACGIH - American Conference of Governmental Industrial Hygienists IARC - International Agency for Research on Cancer DNEL - Derived No Effect Level PNEC - Predicted No Effect Concentration RPE - Respiratory Protective Equipment LD50 - Lethal Dose 50% LC50 - Lethal Concentration 50% EC50 - Effective Concentration 50%

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ALFAA42522 SAFETY DATA SHEET Revision Date 05-Aug-2026Page 9 / 9 Lanthanum(III) 2-methoxyethoxide, 99.9% (REO), 5% w/v in 2-methoxyethanol ______________________________________________________________________________________________ NOEC - No Observed Effect Concentration POW - Partition coefficient Octanol:Water PBT - Persistent, Bioaccumulative, Toxic vPvB - very Persistent, very Bioaccumulative

ICAO/IATA - International Civil Aviation Organization/International Air IMO/IMDG - International Maritime Organization/International Maritime Transport Association Dangerous Goods Code ADR - European Agreement Concerning the International Carriage of MARPOL - International Convention for the Prevention of Pollution from Dangerous Goods by Road Ships OECD - Organisation for Economic Co-operation and Development ATE - Acute Toxicity Estimate BCF - Bioconcentration factor VOC - (Volatile Organic Compound)

Key literature references and sources for data https://echa.europa.eu/information-on-chemicals Suppliers safety data sheet, Chemadvisor - LOLI, Merck index, RTECS

Physical hazards On basis of test data Health Hazards Calculation method Environmental hazards Calculation method

Disclaimer The information provided in this Safety Data Sheet is correct to the best of our knowledge, information and belief at the date of its publication. The information given is designed only as a guidance for safe handling, use, processing, storage, transportation, disposal and release and is not to be considered a warranty or quality specification. The information relates only to the specific material designated and may not be valid for such material used in combination with any other materials or in any process, unless specified in the text

End of Safety Data Sheet

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