Comparing E290 - Carbon dioxide vs E943B - Isobutane
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Found in 983 products
Found in 32 products
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Interest over time for 6 keywords in U.S. during the last 10 years.
Interest over time for 2 keywords in U.S. during the last 10 years.
Popular questions
How to treat low carbon dioxide in blood?
Low CO2 (bicarbonate) on a blood test reflects an acid-base imbalance, so treatment targets the underlying cause—such as correcting metabolic acidosis, adjusting ventilation, or managing kidney issues—under medical supervision. Drinking carbonated beverages or ingesting E290 does not correct it.
Is carbon dioxide a compound?
Yes—CO2 is a chemical compound consisting of one carbon atom covalently bonded to two oxygen atoms.
Is carbon dioxide a pure substance?
Pure CO2 is a single chemical substance. Food-grade E290 is highly purified CO2 that meets strict identity and impurity limits before it is used in beverages or modified-atmosphere packaging.
Is carbon dioxide bad for you?
At typical levels in foods and carbonated drinks, CO2 is considered safe; it is permitted as E290 in the EU and GRAS in the U.S. Hazards arise from breathing very high concentrations (which can displace oxygen) or improper handling of liquid CO2 or dry ice.
Where does carbon dioxide come from?
Suppliers capture CO2 from natural wells, fermentation (e.g., breweries, bioethanol plants), or industrial off-gases, then purify, liquefy, and repackage it for food-grade uses like carbonation and protective atmospheres.
How do the global warming potentials of isobutane?
Isobutane (R-600a) has a very low GWP—about 3 over 100 years and roughly 10 over 20 years (values vary slightly by IPCC assessment). That’s far lower than many HFC propellants, and its ozone-depletion potential is 0.
What is isobutane used for?
As food additive E943b, it’s used as a propellant/expellant gas in aerosols like whipped cream and cooking sprays. Beyond foods, it’s also used as a refrigerant (R-600a), a fuel for lighters/camping stoves, and a foam-blowing agent.
What is the difference between butane and isobutane?
They’re structural isomers: n-butane (E943a) is straight-chain, while isobutane (E943b) is branched. Isobutane’s lower boiling point gives higher vapor pressure and better cold-weather performance; both are highly flammable gases used as propellants.
How do global warming potentials of isobutane?
On a 100‑year basis, isobutane’s GWP is about 3; on a 20‑year basis it’s roughly 10, depending on the IPCC report cited. These values are very low compared with common HFC propellants, and its ODP is 0.
How long do isobutane canisters last?
Run time depends on canister size and stove output; a typical 230 g canister fuels about 1.5–3 hours at moderate heat (less in cold or high power). Unopened canisters keep for many years if stored cool and dry; always follow the manufacturer’s guidance.