Comparing E944 - Propane vs E942 - Nitrous oxide
Overview
Synonyms
Products
Found in 32 products
Found in 170 products
Search rank & volume
Awareness score
Search volume over time
Interest over time for 2 keywords in U.S. during the last 10 years.
Interest over time for 3 keywords in U.S. during the last 10 years.
Popular questions
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.
What is nitrous oxide used for?
In foods, E942 is used as a propellant and foaming gas for aerosol whipped cream and similar products, and it helps limit oxidation by displacing oxygen; outside food, it’s also used medically for sedation and analgesia.
Why don't dentists use nitrous oxide anymore?
Many dentists still use it; where it’s reduced or discontinued, it’s usually due to practice policies, monitoring and ventilation requirements, costs, or infection-control considerations, not because it’s been broadly banned.
How does nitrous oxide work?
As a food additive, it dissolves in cream under pressure and expands into fine bubbles when released, whipping and dispensing the product while displacing oxygen to slow oxidation.
How long does nitrous oxide last?
In medical/dental use, its effects generally wear off within a few minutes after inhalation stops; in whipped cream, the gas remains in the foam for hours but gradually diffuses out.
Is nitrous oxide flammable?
No—nitrous oxide isn’t flammable, but it is a strong oxidizer that can make other materials burn faster and more intensely.