Nitrogen (N₂) and liquid nitrogen
Nitrogen is an inert gas widely used in factories, building services and food. Liquid nitrogen is extremely cold (about −196 °C) and is used for freezing and storing samples.

Photo: Unnerving duck / Wikimedia Commons / CC0

Photo: Cjp24 / Wikimedia Commons / CC BY-SA 4.0
What it is used for
- Purging air or moisture from pipes and tanks
- Pressure testing and leak detection, e.g. air-conditioning and copper pipe systems
- Food packaging to extend shelf life [confirm that food grade is available]
- Liquid nitrogen: food freezing, laboratories, sample storage [confirm liquid nitrogen service and container sizes]
Cylinder sizes, grades and prices
| Item | Details |
|---|---|
| Grade/purity | [state as actually produced] |
| Fill size | [list the cylinder sizes available] |
| Services | Refill / cylinder exchange / delivery [confirm per branch] |
| Price | [starting price, or “ask for a price”] |
FAQ
How much is liquid nitrogen per litre?
The price depends on quantity and delivery area [price/terms, or “ask for a price”]
Is nitrogen dangerous?
Nitrogen does not burn, but if it leaks in a confined space it displaces oxygen and can cause asphyxiation, so use it in a well-ventilated area. With liquid nitrogen, wear gloves and eye protection against the extreme cold.
Do you deliver?
[delivery terms]
[Real photo: nitrogen cylinder]
Branches offering this service
- Chonburi (Nong Ri) Branch
- Sriracha–Laem Chabang Branch
- Chiang Rai Branch
- Surat Thani Branch
- Ranong Branch
Confirm product availability at each branch: [product list per branch]