Oxygen
Oxygen (CAS 7782-44-7), a diatomic molecule with the formula O2 and a molecular weight of 32.00 g/mol, is a vital, highly reactive gas. It is fundamental to combustion processes and cellular respiration. At Tech Serve Solutions, we supply Oxygen with an assay of ≥99.6%, making it suitable for chemical synthesis, as a specialty gas, and for use as a synthetic reagent where high purity is required.

Chemical Synthesis
Oxygen acts as a key oxidising agent in numerous chemical reactions, facilitating the synthesis of various organic and inorganic compounds. Its high reactivity is harnessed to drive reactions that might otherwise be slow or require harsher conditions.
Specialty Gases
Supplied at high purity, Oxygen is utilised as a specialty gas in diverse industrial and laboratory applications. Its specific properties are critical for processes requiring precise gas compositions.
Synthetic Reagents
As a synthetic reagent, Oxygen is indispensable for processes requiring controlled oxidation. Its application is crucial in the development and production of new materials and chemical entities.
| Molecular weight | 32.00 |
|---|---|
| Linear formula | O2 |
| Assay | ≥99.6% |
| Boiling point | −183 °C(lit.) |
| Vapour density | 1.11 (vs air) |
| Impurities tested | ≤10 ppm water |
| Melting point | −218 °C(lit.) |


Hazard statements
- H270May cause or intensify fire; oxidiser
- H280Contains gas under pressure; may explode if heated
Precautionary statements
- P220Keep away from clothing and combustible materials
- P410Protect from sunlight
| Protective equipment | Eyeshields, Gloves, half-mask respirator (EU), half-mask respirator (US), multi-purpose combination respirator cartridge (US) |
|---|---|
| Transport (UN / ADR) | UN 1072 5.1(2.2) |
| Water hazard class (WGK, DE) | nwg |
| Hazard codes (EU) | O |
| Risk statements (R) | 8 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Oxygen (CAS 7782-44-7) used for?
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Oxygen (CAS 7782-44-7) is used in chemical synthesis, as a specialty gas, and as a synthetic reagent. It serves as a vital oxidising agent in many chemical reactions.
What is the CAS number and formula for Oxygen?
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The CAS number for Oxygen is 7782-44-7, and its chemical formula is O2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Oxygen with an assay of ≥99.6%. We do not represent this product as USP, BP, or EP grade.
How should Oxygen be handled safely?
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Oxygen is an oxidiser and can cause or intensify fire (H270). It may cause frostbite (H280) and also contains gas under pressure. Handle with appropriate personal protective equipment, including eyeshields, gloves, and a suitable respirator. Ensure proper ventilation and avoid contact with combustible materials.
How is Oxygen packed, shipped, and exported by TSS?
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Oxygen is supplied as a gas and shipped in accordance with international regulations for hazardous materials (UN 1072 5.1(2.2)). Consult with our export team for specific details regarding international shipping.
How can I request a sample or quote for Oxygen?
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To request a sample or quote for Oxygen, please contact our sales department via phone or email, providing your specific requirements and shipping details.
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