Comparing E943B - Isobutane vs E944 - Propane
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Found in 32 products
Found in 32 products
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Interest over time for 2 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 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.
How much is propane per gallon?
Propane prices vary by region, season, and whether it’s bulk delivery or a cylinder refill. In the U.S., recent retail refill prices often run about $2–$4 per gallon, while tank exchanges tend to cost more per gallon; check local suppliers.
Does propane go bad?
No—propane itself doesn’t expire; in a sealed cylinder it remains stable indefinitely, though the cylinder/valve condition and the odorant can degrade over time.
How much does a gallon of propane weigh?
About 4.2 lb per gallon as a liquid at 60°F (weight varies slightly with temperature).
How much is a propane tank?
A new empty 20‑lb grill cylinder typically costs about $40–$70. Large stationary tanks (250–1,000 gal) are several hundred to several thousand dollars or are often leased; prices vary by region.
Where to refill propane tank?
At propane refill stations such as propane dealers, many hardware stores, some gas stations, farm/garden centers, and RV parks; for 20‑lb cylinders you can also use exchange cages.