Holmium powder ALFAA45919 SDS

Page 1 / 8 SAFETY DATA SHEET Creation Date 04-Jun-2018 Revision Date 31-Jul-2026 Version 5

ALFAA45919

Holmium powder

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: 钬粉钬粉钬粉钬粉 Product Description: Holmium powder

Cat No. : 45919 CAS No 7440-60-0

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 Solid Grey - Silver Odorless

Emergency Overview Flammable solid. In contact with water releases flammable gases which may ignite spontaneously. Moisture sensitive. Air sensitive.

Classification of the substance or mixture

Flammable solids. Category 1 Substances/mixtures which, in contact with water, emit flammable gases Category 1

Label Elements

Signal Word Danger

Hazard Statements ______________________________________________________________________________________________ Page 1

ALFAA45919 SAFETY DATA SHEET Revision Date 31-Jul-2026Page 2 / 8 Holmium powder ______________________________________________________________________________________________ H228 - Flammable solid H260 - In contact with water releases flammable gases which may ignite spontaneously

Precautionary Statements Prevention P210 - Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking P231 + P232 - Handle and store contents under inert gas. Protect from moisture P240 - Ground and bond container and receiving equipment P280 - Wear protective gloves/protective clothing/eye protection/face protection Response P302 + P335 + P334 - IF ON SKIN: Brush off loose particles from skin. Immerse in cool water Storage P402 + P404 - Store in a dry place. Store in a closed container Disposal P501 - Dispose of contents/ container to an approved waste disposal plant

Physical and Chemical Hazards Combustible material. Reacts violently with water, liberating extremely flammable gases. Health Hazards The product contains no substances which at their given concentration are considered to be hazardous to health. Environmental hazards Contains no substances known to be hazardous to the environment or not degradable in waste water treatment plants.

This product does not contain any known or suspected endocrine disruptors.

SECTION 3. COMPOSITION/INFORMATION ON INGREDIENTS

Component CAS No Weight % Holmium 7440-60-0 <=100

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. Get medical attention if symptoms occur.

Most important symptoms and effects None reasonably foreseeable.

Self-Protection of the First Aider No special precautions required.

Notes to Physician Treat symptomatically.

SECTION 5. FIRE-FIGHTING MEASURES

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ALFAA45919 SAFETY DATA SHEET Revision Date 31-Jul-2026Page 3 / 8 Holmium powder ______________________________________________________________________________________________ Suitable Extinguishing Media approved class D extinguishers. Do not use water or foam.

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

Specific Hazards Arising from the Chemical Thermal decomposition can lead to release of irritating gases and vapors.

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. Avoid dust formation.

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 Sweep up and shovel into suitable containers for disposal. Keep in suitable, closed containers for disposal.

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. Avoid ingestion and inhalation. Avoid dust formation. Do not get in eyes, on skin, or on clothing.

Storage Keep container tightly closed in a dry and well-ventilated place. Keep away from open flames, hot surfaces and sources of ignition. Store under an inert atmosphere.

Specific Use(s) Use in laboratories

SECTION 8. EXPOSURE CONTROLS/PERSONAL PROTECTION

Control Parameters

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. MDHS14/3 General methods for sampling and gravimetric analysis of respirable and inhalable dust 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 None under normal use conditions. .

Personal protective equipment ______________________________________________________________________________________________ Page 3

ALFAA45919 SAFETY DATA SHEET Revision Date 31-Jul-2026Page 4 / 8 Holmium powder ______________________________________________________________________________________________

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 Natural rubber See manufacturers - EN 374 (minimum requirement) Nitrile rubber recommendations Neoprene PVC 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 No protective equipment is needed under normal use conditions.

Large scale/emergency use Use a NIOSH/MSHA or European Standard EN 136 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced Recommended Filter type: Particle filter

Small scale/Laboratory use Maintain adequate ventilation

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 Grey - Silver Physical State Solid

Odor Odorless Odor Threshold No data available pH No information available Melting Point/Range 1474 °C / 2685.2 °F Softening Point No data available Boiling Point/Range 2295 °C / 4163 °F Flash Point No information available Method - No information available Evaporation Rate Not applicable Solid Flammability (solid,gas) No information available Explosion Limits No data available

Vapor Pressure 23 hPa @ 20 °C Vapor Density Not applicable Solid Specific Gravity / Density 8.795 g/cm3 @ 20 °C Bulk Density No data available Water Solubility No information available Solubility in other solvents No information available Partition Coefficient (n-octanol/water) Autoignition Temperature No data available Decomposition Temperature No data available Viscosity Not applicable Solid Explosive Properties No information available Oxidizing Properties No information available ______________________________________________________________________________________________ Page 4

ALFAA45919 SAFETY DATA SHEET Revision Date 31-Jul-2026Page 5 / 8 Holmium powder ______________________________________________________________________________________________

SECTION 10. STABILITY AND REACTIVITY

Stability Air sensitive. Moisture sensitive.

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

Conditions to Avoid None known.

Materials to avoid Water. Acids. Acid chlorides. Oxidizing agent.

Hazardous Decomposition Products Metal oxides. Holmium oxide. Hydrogen.

SECTION 11. TOXICOLOGICAL INFORMATION

Product Information

(a) acute toxicity;

(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; No data available

(h) STOT-single exposure; No data available

(i) STOT-repeated exposure; No data available

Target Organs No information available.

(j) aspiration hazard; Not applicable Solid

Symptoms / effects,both acute and No information available delayed

SECTION 12. ECOLOGICAL INFORMATION

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ALFAA45919 SAFETY DATA SHEET Revision Date 31-Jul-2026Page 6 / 8 Holmium powder ______________________________________________________________________________________________ Ecotoxicity effects May cause long-term adverse effects in the environment. Do not allow material to contaminate ground water system.

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

Bioaccumulative Potential Product has a high potential to bioconcentrate

Mobility in soil No information available

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 UN3089 Proper Shipping Name Metal powder, flammable, n.o.s. Technical Shipping Name (Holmium) Hazard Class 4.1 Packing Group II

IMDG/IMO

UN-No UN3089 Proper Shipping Name Metal powder, flammable, n.o.s. Technical Shipping Name (Holmium) Hazard Class 4.1 Packing Group II

IATA

UN-No UN3089 Proper Shipping Name Metal powder, flammable, n.o.s. Technical Shipping Name (Holmium)

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ALFAA45919 SAFETY DATA SHEET Revision Date 31-Jul-2026Page 7 / 8 Holmium powder ______________________________________________________________________________________________ Hazard Class 4.1 Packing Group II

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) Holmium - - - 231-169-0 X - - X - -

National Regulations

SECTION 16. OTHER INFORMATION

Prepared By Health, Safety and Environmental Department Creation Date 04-Jun-2018 Revision Date 31-Jul-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% 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 ______________________________________________________________________________________________ Page 7

ALFAA45919 SAFETY DATA SHEET Revision Date 31-Jul-2026Page 8 / 8 Holmium powder ______________________________________________________________________________________________ https://echa.europa.eu/information-on-chemicals Suppliers safety data sheet, Chemadvisor - LOLI, Merck index, RTECS

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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