Oxygen-18 Gas (¹⁸O₂) O-18O2: Stable Isotope Data Safety Information (MSDS)

SECTION 1: IDENTIFICATION

Product Name: Oxygen-18 Gas (¹⁸O₂)
Chemical Formula: ¹⁸O₂
CAS Number: 32767-18-3
Molecular Weight: ~36.00 g/mol
Synonyms: Enriched Oxygen Gas, ¹⁸O Oxygen Gas, Stable Isotope Oxygen Gas
Intended Use: Scientific research, tracer studies, environmental monitoring, stable isotope labeling

Manufacturer/Supplier Information:
Company Name: Nakima Ltd
Telephone: +971-52-5156232
Website: www.isotope-amt.com

SECTION 2: HAZARD IDENTIFICATION

Classification according to Regulation (EC) No. 1272/2008 [CLP]:

- Oxidizing gases – Category 1 (H270)

- Gases under pressure – Compressed gas (H280)

Signal Word: Danger

Hazard Statements:

- H270: May cause or intensify fire; oxidizer

- H280: Contains gas under pressure; may explode if heated

Precautionary Statements:

- P220: Keep/Store away from clothing and other combustible materials

- P244: Keep valves and fittings free from oil and grease

- P410+P403: Protect from sunlight. Store in a well-ventilated place

SECTION 3: COMPOSITION/INFORMATION ON INGREDIENTS

Name	Product Identifier	%	Classification (CLP)
Oxygen-18 (¹⁸O₂)	CAS No. 32767-18-3	100	Ox. Gas 1 (H270), Press. Gas (H280)

SECTION 4: FIRST AID MEASURES

- Inhalation: Move to fresh air. If symptoms occur, administer oxygen and seek medical attention.

- Skin Contact: Not applicable under normal conditions.

- Eye Contact: Not applicable.

- Ingestion: Not applicable.

SECTION 5: FIRE-FIGHTING MEASURES

- Suitable Extinguishing Media: Use extinguishing agent appropriate for surrounding fire.

- Unsuitable Extinguishing Media: None known.

- Hazardous Combustion Products: None.

- Protective Equipment for Firefighters: Wear self-contained breathing apparatus if involved in fire.

Note: Oxygen supports combustion; it may cause flammable materials to ignite more readily.

SECTION 6: ACCIDENTAL RELEASE MEASURES

- Personal Precautions: Evacuate area. Ensure proper ventilation. Avoid sources of ignition.

- Environmental Precautions: Prevent uncontrolled release into the environment.

- Cleanup Methods: Ventilate area. Shut off source if safe to do so.

SECTION 7: HANDLING AND STORAGE

- Handling: Do not allow oil, grease, or combustible materials to come into contact with cylinders. Use only in well-ventilated areas.

- Storage Conditions: Store upright in a cool, dry, and ventilated location away from flammable substances. Secure gas cylinders.

SECTION 8: EXPOSURE CONTROLS/PERSONAL PROTECTION

- Occupational Exposure Limits: Not established for ¹⁸O₂ specifically.

Engineering Controls: Use with proper exhaust ventilation. Oxygen-enriched environments require special precautions.

Personal Protective Equipment (PPE):

- Eye Protection: Safety goggles recommended when handling gas equipment

- Skin Protection: Not required

- Respiratory Protection: Use suitable equipment in case of oxygen-deficient atmosphere

SECTION 9: PHYSICAL AND CHEMICAL PROPERTIES

- Appearance: Colorless gas

- Odor: Odorless

- Melting Point: −218.8 °C

- Boiling Point: −183.0 °C

- Density: ~1.429 g/L (at 0 °C, 1 atm)

- Solubility: Slightly soluble in water

- Oxidizing Properties: Strong oxidizer

SECTION 10: STABILITY AND REACTIVITY

- Reactivity: Strong oxidizing agent.

- Chemical Stability: Stable under normal temperature and pressure.

- Incompatible Materials: Flammable and combustible materials, reducing agents, organic matter.

- Hazardous Decomposition Products: None.

SECTION 11: TOXICOLOGICAL INFORMATION

- Acute Toxicity: Non-toxic

- Carcinogenicity: Not classified

- Routes of Exposure: Inhalation

- Symptoms: High concentrations may displace air and lead to oxygen toxicity or dizziness

SECTION 12: ECOLOGICAL INFORMATION

- Ecotoxicity: Not classified as hazardous

- Persistence and Degradability: Not applicable (elemental gas)

- Bioaccumulative Potential: Not applicable

- Mobility in Soil: Not applicable

SECTION 13: DISPOSAL CONSIDERATIONS

Dispose of gas and cylinders in accordance with local, national, and international regulations. Allow controlled venting of gas in a well-ventilated area.

SECTION 14: TRANSPORT INFORMATION

- UN Number: UN1072

- Proper Shipping Name: Oxygen, compressed

- Hazard Class: 2.2 (Non-flammable, oxidizing gas)

- Packing Group: Not applicable

- Label: Oxidizing gas

SECTION 15: REGULATORY INFORMATION

- EU Regulations: Listed, classified as oxidizing gas

- US TSCA Status: Listed

- OSHA Hazard Classification: Compressed, oxidizing gas

SECTION 16: OTHER INFORMATION

Revision Date: March 2025
Prepared by: Nakima Ltd

Disclaimer: The information provided here is accurate to the best of our knowledge. Users are responsible for ensuring proper handling and compliance with applicable regulations.