isobutane
Basic Information
| Field | Content |
|---|---|
| Chinese name | isobutane |
| English name | isobutane |
| INS/E number | INS 943b |
| Functional class | Propellant |
| Year adopted | 1965 |
| Approved by | European Union (EFSA) |
What is it?
Isobutane (2-methylpropane, C₄H₁₀) is a structural isomer of butane and a flammable saturated hydrocarbon gas used as a food propellant and aerating agent.
Source
Industrial：石油炼制或天然气分离后经分馏、纯化制得
Why is it used?
- Propellant gas in food aerosols
- Provides propulsion in aerosol foods
- Aerating agent improving texture
- Component of foaming/spray systems
Common Foods
- Cooking oil sprays
- Aerosol whipped cream
- Aerosol desserts
- Aerated snacks
- Flavour sprays
Safety
ADI (Acceptable Daily Intake)：Not applicable (evaluated, no limit set)
Concerns：
- 高度易燃，存在燃爆风险
- 误吸可致窒息
- 需控制终产品残留
Usage Standard
China：GB 2760《食品安全国家标准 食品添加剂使用标准》；GB 1886 食品用气体标准
International：
- EU Regulation 1333/2008 Annex II (E 943b)
- FDA 21 CFR 184.1295 (isobutane, propellant)
- Codex GSFA (INS 943b)
- FSANZ Food Standards Code (943)
In a nutshell
Isobutane is a propellant for spray and aerosol foods; safe as a gas but highly flammable.
Consumer Advice
Isobutane is an isomer of butane and, like it, is a colorless, odorless gas used as a propellant in aerosol food products such as spray cream and cooking oil sprays. It is petrochemical-derived, contains no animal or plant ingredients, and suits vegan, halal and kosher diets. It only pushes the food out of the can and does not remain in the food, making it safe at approved levels and not an allergen.
Dietary Restrictions
- Vegan: ✅
- Halal: ✅
- Kosher: ✅
Allergens
✅ Free from common allergens
Disclaimer
The information provided here is for discussion and educational purposes only. It is not medical advice or an evaluation/rating of any product or ingredient. This information may not apply to you; before using or taking any action, you should contact the manufacturer, vendor, medical, dietary, fitness, or other professionals. If you use any information provided here, you do so at your own risk.