Gadolinium SDS

SAFETY DATA SHEET

Section 1: Identification

Product name: Gadolinium Product use: For laboratory research purposes. Supplier: Trace Sciences International 40 Vogell Rd Suite 42 Richmond Hill, ON L4B 3N6 CANADA Telephone: +1 905-770-1100 Fax: +1 905-770-1160 Emergency Phone: CANUTEC +1-613-996-6666

Section 2: Hazard(s) Identification

2.1 GHS Classification Substances and mixtures which in contact with water emit flammable gases (Category 3), H261

2.2 GHS Label elements, including precautionary statements

Pictogram

Signal word Warning Hazard statement(s): H261 In contact with water releases flammable gases. Precautionary statement(s): P231 + P232 Handle under inert gas. Protect from moisture. P280 Wear protective gloves/ protective clothing/ eye protection/ face protection P370 + P378 In case of fire: Use dry sand, dry chemical or alcohol-resistant foam to extinguish. P402 + P404 Store in a dry place. Store in a closed container. P501 Dispose of contents/ container to an approved waste disposal plant.

Section 3: Composition/ Information on Ingredients

Formula : Gd Molecular Weight : 157.25 g/mol

Material CAS-No. EC-No. Index-No. Concentration Gadolinium 7440-54-2 231-162-2 - <=100%

Section 4: First-Aid Measures

4.1 Description of first aid measures

General advice Consult a physician. Show this safety data sheet to the doctor in attendance. Move person out of dangerous area if safe to do so.

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If inhaled If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician.

In case of skin contact Take off contaminated clothing and shoes immediately. Wash off with soap and plenty of water for at least 15 minutes. Use chemical shower if available. Consult a physician.

In case of eye contact Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician. Remove contacts if possible.

If swallowed Do NOT induce vomiting. Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician.

Section 5: Fire-Fighting Measures

5.1 Conditions of flammability May burn in presence of air or emit a flammable gas in the presence of water or water vapour. Keep away from heat/sparks/open flame/hot surface/air/water. No smoking.

5.2 Suitable extinguishing media Dry powder, carbon dioxide (CO2), DO NOT USE WATER

5.3 Hazardous combustion products

Hazardous decomposition products formed under fire conditions: gadolinium oxides

5.4 Special protective equipment for firefighters Wear self-contained breathing apparatus for firefighting if necessary.

5.5 Further information No data available

Section 6: Accidental Release Measures

6.1 Personal precautions Use personal protective equipment. Avoid dust formation. Avoid breathing vapours, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Avoid breathing dust.

6.2 Environmental precautions Prevent further leakage or spillage if safe to do so. Do not let product enter drains.

6.3 Methods and materials for containment and cleaning up Sweep up and shovel. Contain spillage, and then collect with an electrically protected vacuum cleaner or by wet-brushing and place in container for disposal according to local regulations. Keep in suitable, closed containers for disposal.

Section 7: Handling and Storage

7.1 Precautions for safe handling Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Provide appropriate exhaust ventilation at places where dust is formed.

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7.2 Conditions for safe storage Air and moisture sensitive. Never allow product to get in contact with water during storage. Keep container tightly closed in a dry and well-ventilated place.

Section 8: Exposure Controls/Personal Protection

8.1 Components with workplace control parameters

No data available

8.2 Personal protective equipment

Respiratory protection Where risk assessment shows air-purifying respirators are appropriate use a full-face particle respirator type N100 (US) or type P3 (EN 143) respirator cartridges as a backup to engineering controls. If the respirator is the sole means of protection, use a full-face supplied air respirator. Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU).

Hand protection Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique (without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands.

Eye protection Safety glasses with side-shields conforming to EN166. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).

Skin and body protection Flame retardant protective clothing, the type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace.

Hygiene measures Handle in accordance with good industrial hygiene and safety practice. Wash hands before breaks and at the end of workday.

Specific engineering controls Use mechanical exhaust or laboratory fume hood to avoid exposure.

Section 9: Physical and Chemical Properties

Appearance Form Pieces Colour Light grey

Safety Data pH No data available Melting point/freezing point 1,313 °C (2,395 °F) Boiling point 3,273 °C (5,923 °F) Flash point Not applicable Flammability (solid, gas) No data available Ignition temperature No data available Auto-ignition temperature No data available Lower explosion limit No data available Upper explosion limit No data available

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Vapour pressure No data available Density 7.886 g/mL at 25 °C (77 °F) Water solubility No data available Partition coefficient: n-octanol/water No data available Relative vapour density No data available Odour No data available Odour Threshold No data available Evaporation rate No data available

Section 10: Stability and Reactivity

10.1 Chemical stability Stable under recommended storage conditions

10.2 Possibility of hazardous reactions Reacts violently with water.

Violent reactions possible with: Oxygen, Strong acids, Strong oxidizing agents

10.3 Conditions to avoid Exposure to moisture.

10.4 Materials to avoid Oxygen, Strong acids, Strong oxidizing agents

10.5 Hazardous decomposition products

See section 5

Section 11: Toxicological Information

Acute toxicity

Oral No data available

Inhalation No data available

Dermal No data available

Other information on acute toxicity No data available

Skin corrosion/irritation No data available

Serious eye damage/eye irritation No data available

Respiratory or skin sensitization No data available

Germ cell mutagenicity No data available

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Carcinogenicity No data available

Reproductive toxicity No data available

Specific target organ toxicity - single exposure (Globally Harmonized System) No data available

Specific target organ toxicity - repeated exposure (Globally Harmonized System) No data available

Aspiration hazard No data available

Signs and Symptoms of Exposure No data available

Additional Information RTECS: Not available

Section 12: Ecological Information

12.1 Toxicity No data available

12.2 Persistence and degradability No data available

12.3 Bioaccumulative potential No data available

12.4 Mobility in soil No data available

12.5 PBT and vPvB assessment PBT/vPvB assessment not available as chemical safety assessment not required/not conducted

12.6 Other adverse effects

No data available

Section 13: Disposal Considerations

Product Burn in a chemical incinerator equipped with an afterburner and scrubber but exert extra care in igniting as this material is highly flammable. Offer surplus and non-recyclable solutions to a licensed disposal company. Contact a licensed professional waste disposal service to dispose of this material.

Contaminated packaging Dispose of as unused product.

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Section 14: Transport Information

IATA UN number: UN3208 Class: 4.3 Packing group: III Proper shipping name: Metallic substance, water-reactive, n.o.s. (Gadolinium)

Section 15: Regulatory Information

This product has been classified in accordance with the hazard criteria of the Hazardous Products Regulations (HPR) and the SDS contains all the information required by the HPR

Section 16: Other Information

Further information Although reasonable care has been taken in the preparation of this document, we extend no warranties and make no representations as to the accuracy or completeness of the information contained herein, and assume no responsibility regarding the suitability of this information for the user’s intended purposes or for the consequences of its use. Each individual should make a determination as to the suitability of the information for his or her particular purpose(s).

Trace Sciences International.

See https://www.tracesciences.com/ for additional terms and conditions of sale.

Date Prepared: February 10, 2025

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