セリウム oxide, 20% in H2O, colloidal dispersion ALFAA12730 SDS

ページ 1 / 9 SAFETY DATA SHEET 改訂版 Date 04-Aug-2026 Version 5

ALFAA12730

Cerium oxide, 20% in H2O, colloidal dispersion

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: 氧化铈氧化铈氧化铈氧化铈 Product 説明: Cerium oxide, 20% in H2O, colloidal dispersion

Cat No. : 12730 Molecular Formula CeO2 mol/mol 0.2 nitrate, pH 1.5

供給元 Avocado Research Chemicals Ltd. (Part of Thermo Fisher Scientific) Shore Road, Heysham Lancashire, LA3 2XY, 英国 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

おすすめ Use Laboratory chemicals. Uses advised against No Information available

SECTION 2. HAZARD IDENTIFICATION

Physical State Appearance Odor Liquid Yellow No information available

Emergency 概要 Causes serious eye irritation. Causes skin irritation. May be corrosive to metals.

Classification of the substance or mixture

Substances/mixtures corrosive to metal Category 1 Skin Corrosion/Irritation Category 2 Serious Eye Damage/Eye Irritation Category 2

Label 元素s

Signal Word Warning

Hazard Statements H290 - May be corrosive to metals ______________________________________________________________________________________________ ページ 1

ALFAA12730 SAFETY DATA SHEET 改訂版 Date 04-Aug-2026ページ 2 / 9 Cerium oxide, 20% in H2O, colloidal dispersion ______________________________________________________________________________________________ H319 - Causes serious eye irritation H315 - Causes skin irritation

Precautionary Statements Prevention P234 - Keep only in original packaging P264 - Wash face, hands and any exposed skin thoroughly after handling P280 - Wear protective gloves/protective clothing/eye protection/face protection Response P302 + P352 - IF ON SKIN: Wash with plenty of soap and water P305 + P351 + P338 - IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing P332 + P313 - If skin irritation occurs: Get medical advice/attention P337 + P313 - If eye irritation persists: Get medical advice/attention P390 - Absorb spillage to prevent material damage P362 + P364 - Take off contaminated clothing and wash it before reuse Storage P406 - Store in corrosion resistant polypropylene container with a resistant inliner Disposal P501 - Dispose of contents/ container to an approved waste disposal plant

Physical and Chemical Hazards May be corrosive to metals. Health Hazards Causes serious eye irritation. Causes skin irritation. Environmental hazards Contains no substances known to be hazardous to the environment or not degradable in waste water treatment plants. Will likely be mobile in the environment due to its water solubility. The product is water soluble, and may spread in water systems.

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

SECTION 3. COMPOSITION/INFORMATION ON INGREDIENTS

Component CAS No Weight % Water 7732-18-5 76 Cerium oxide 1306-38-3 20 Nitricacid…% [C≤70%] 7697-37-2 2 Acetic acid 64-19-7 2

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

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

Most important symptoms and effects None reasonably foreseeable. Product is a corrosive material. Use of gastric lavage or emesis is contraindicated. Possible perforation of stomach or esophagus should be investigated: Ingestion causes severe swelling, severe damage to the delicate tissue and danger of perforation ______________________________________________________________________________________________ ページ 2

ALFAA12730 SAFETY DATA SHEET 改訂版 Date 04-Aug-2026ページ 3 / 9 Cerium oxide, 20% in H2O, colloidal dispersion ______________________________________________________________________________________________

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 Not combustible. CO 2, dry chemical, dry sand, alcohol-resistant 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. The product causes burns of eyes, skin and mucous membranes. None reasonably foreseeable.

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.

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.

Refer to protective measures listed in Sections 8 and 13.

SECTION 7. HANDLING AND STORAGE

Handling Wear personal protective equipment/face protection. Do not get in eyes, on skin, or on clothing. Ensure adequate ventilation. Avoid ingestion and inhalation.

Storage Corrosives area. Keep containers tightly closed in a dry, cool and well-ventilated place.

Specific Use(s) Use in laboratories

SECTION 8. EXPOSURE CONTROLS/PERSONAL PROTECTION

Control Parameters

Component 中国 ACGIH TLV OSHA PEL NIOSH Nitricacid…% [C≤70%] - TWA: 2 ppm (Vacated) TWA: 2 ppm IDLH: 25 ppm STEL: 4 ppm (Vacated) TWA: 5 mg/m3 REL = 2 ppm (TWA) ______________________________________________________________________________________________ ページ 3

ALFAA12730 SAFETY DATA SHEET 改訂版 Date 04-Aug-2026ページ 4 / 9 Cerium oxide, 20% in H2O, colloidal dispersion ______________________________________________________________________________________________ (Vacated) STEL: 4 ppm REL = 5 mg/m3 (TWA) (Vacated) STEL: 10 mg/m3 STEL: 4 ppm TWA: 2 ppm STEL: 10 mg/m3 TWA: 5 mg/m3 Acetic acid TWA: 10 mg/m3 TWA: 10 ppm (Vacated) TWA: 10 ppm IDLH: 50 ppm STEL: 20 mg/m3 STEL: 15 ppm (Vacated) TWA: 25 mg/m3 REL = 10 ppm (TWA) TWA: 10 ppm REL = 25 mg/m3 (TWA) TWA: 25 mg/m3 STEL: 15 ppm STEL: 37 mg/m3

Component Hong Kong Thailand European Union The 英国 Nitricacid…% [C≤70%] TWA: 2 ppm TWA: 2 ppm STEL: 1 ppm (15min) STEL: 1 ppm 15 min TWA: 5.2 mg/m3 STEL: 2.6 mg/m3 (15min) STEL: 2.6 mg/m3 15 min STEL: 4 ppm STEL: 10 mg/m3 Acetic acid TWA: 10 ppm TWA: 10 ppm TWA: 25 mg/m3 (8h) STEL: 37 mg/m3 TWA: 25 mg/m3 TWA: 10 ppm (8h) STEL: 15 ppm STEL: 15 ppm STEL: 50 mg/m3 (15min) TWA: 10 ppm STEL: 37 mg/m3 STEL: 20 ppm (15min) TWA: 25 mg/m3

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 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 that eyewash stations and safety showers are close to the workstation location. 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 Goggles (European standard - EN 166)

Hand Protection Protective gloves

Glove material Breakthrough time Glove thickness EU standard Glove comments Neoprene See manufacturers - EN 374 (minimum requirement) recommendations 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 おすすめ 絞り込み type: Acid gases filter

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.

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ALFAA12730 SAFETY DATA SHEET 改訂版 Date 04-Aug-2026ページ 5 / 9 Cerium oxide, 20% in H2O, colloidal dispersion ______________________________________________________________________________________________ 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 Yellow Physical State Liquid

Odor No information available Odor Threshold No data available pH 1.5 Melting Point/Range No data available Softening Point No data available Boiling Point/Range No information available Flash Point No information available 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 1.22 g/cm3 @ 20 °C Bulk Density Not applicable Liquid Water Solubility Miscible Solubility in other solvents No information available Partition Coefficient (n-octanol/water) Component log Pow Nitricacid…% [C≤70%] -2.3 Acetic acid -0.2 Autoignition Temperature No data available Decomposition Temperature No data available Viscosity No data available Explosive Properties No information available Oxidizing Properties No information available

Molecular Formula CeO2 mol/mol 0.2 nitrate, pH 1.5 Molecular Weight 172.12

SECTION 10. STABILITY AND REACTIVITY

Stability Stable under normal conditions.

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

Conditions to Avoid None known.

材料 to avoid Strong bases.

Hazardous Decomposition Products Carbon monoxide (CO). Carbon dioxide (CO2). Nitrogen oxides (NOx). Hydrogen fluoride. Metal oxides.

SECTION 11. TOXICOLOGICAL INFORMATION

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ALFAA12730 SAFETY DATA SHEET 改訂版 Date 04-Aug-2026ページ 6 / 9 Cerium oxide, 20% in H2O, colloidal dispersion ______________________________________________________________________________________________ Product Information

(a) acute toxicity; Toxicology data for the components

Component LD50 Oral LD50 Dermal LC50 Inhalation Water - - - Cerium oxide >5000 mg/kg ( Rat ) >2000 mg/kg ( Rat ) >5.05 mg/L ( Rat ) 4 h Nitricacid…% [C ≤70%] LC50 = 2500 ppm. (Rat) 1h Acetic acid 3310 mg/kg ( Rat ) - > 40 mg/L ( Rat ) 4 h

(b) skin corrosion/irritation; Category 2

(c) serious eye damage/irritation; Category 2

(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; No data available

Symptoms / effects,both acute and Product is a corrosive material. Use of gastric lavage or emesis is contraindicated. delayed Possible perforation of stomach or esophagus should be investigated: Ingestion causes severe swelling, severe damage to the delicate tissue and danger of perforation

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 Cerium oxide LC50 >100 mg/L/96h EC50 >100 mg/L/48h (Brachydanio rerio) Acetic acid Pimephales promelas: EC50 = 95 mg/L/24h - Photobacterium LC50 = 88 mg/L/96h phosphoreum: EC50 = Lepomis macrochirus: 8.8 mg/L/15 min LC50 = 75 mg/L/96h Photobacterium phosphoreum: EC50 = 8.8 mg/L/25 min Photobacterium phosphoreum: EC50 = 8.8 mg/L/5 min

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ALFAA12730 SAFETY DATA SHEET 改訂版 Date 04-Aug-2026ページ 7 / 9 Cerium oxide, 20% in H2O, colloidal dispersion ______________________________________________________________________________________________

Persistence and Degradability Product contains heavy metals. Discharge into the environment must be avoided. Special pre-treatment is necessary Persistence based on information available, May persist. 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) Nitricacid…% [C ≤70%] -2.3 No data available Acetic acid -0.2 No data available

Mobility in soil The product is water soluble, and may spread in water systems Will likely be mobile in the environment due to its water solubility Highly mobile in soils

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.

Other Information Waste codes should be assigned by the user based on the application for which the product was used. Do not empty into drains. Do not flush to sewer. Large amounts will affect pH and harm aquatic organisms.

SECTION 14. TRANSPORT INFORMATION

Road and Rail Transport

UN-No UN3264 Proper Shipping Name Corrosive liquid, acidic, inorganic, n.o.s. Technical Shipping Name (ACETIC ACID, GLACIAL, NITRIC ACID) Hazard Class 8 Packing Group III

IMDG/IMO

UN-No UN3264 Proper Shipping Name Corrosive liquid, acidic, inorganic, n.o.s. Technical Shipping Name (ACETIC ACID, GLACIAL, NITRIC ACID) Hazard Class 8 Packing Group III

IATA

UN-No UN3264 Proper Shipping Name Corrosive liquid, acidic, inorganic, n.o.s. Technical Shipping Name (ACETIC ACID, GLACIAL, NITRIC ACID) Hazard Class 8 Packing Group III

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ALFAA12730 SAFETY DATA SHEET 改訂版 Date 04-Aug-2026ページ 8 / 9 Cerium oxide, 20% in H2O, colloidal dispersion ______________________________________________________________________________________________ Special Precautions for User No special precautions required

SECTION 15. REGULATORY INFORMATION

International Inventories X = listed, 中国 (IECSC), Europe (EINECS/ELINCS/NLP), U.S.A. (TSCA), Canada (DSL/NDSL), Philippines (PICCS), 日本 (ENCS), 日本 (ISHL), オーストラリア (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) Water - - X 231-791-2 X X X X X KE-35400 Cerium oxide - - X 215-150-4 X X X X X X KE-05392 Nitricacid…% [C≤70 X X X 231-714-2 X X X X X X KE-25911 %] Acetic acid X X X 200-580-7 X X X X X X X

National Regulations

SECTION 16. OTHER INFORMATION

Prepared By Health, Safety and Environmental Department 改訂版 Date 04-Aug-2026 改訂版 Summary Not applicable.

Training Advice Chemical hazard awareness training, incorporating labelling, 安全データシート (SDS), Personal Protective Equipment (PPE) and hygiene.

Legend

CAS - Chemical Abstracts Service TSCA - 米国 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 - 日本語 Existing and New Chemical Substances IECSC - 中国語 Inventory of Existing Chemical Substances AICS - オーストラリアn Inventory of Chemical Substances KECL - 韓国語 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 化合物)

Key literature references and sources for data https://echa.europa.eu/information-on-chemicals ______________________________________________________________________________________________ ページ 8

ALFAA12730 SAFETY DATA SHEET 改訂版 Date 04-Aug-2026ページ 9 / 9 Cerium oxide, 20% in H2O, colloidal dispersion ______________________________________________________________________________________________ 供給元s 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 安全データシート 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 安全データシート

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