Comparing E941 - Nitrogen vs E944 - Propane
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Found in 79 products
Found in 32 products
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Interest over time for 3 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 many valence electrons does nitrogen have?
Five; a nitrogen atom has 5 valence electrons (2s2 2p3).
What is nitrogen fixation?
Nitrogen fixation is the conversion of atmospheric N2 (E941) into biologically available forms like ammonia by microbes, lightning, or the industrial Haber–Bosch process.
What is nitrogen used for?
In foods, E941 is used as an inert propellant and packaging gas to displace oxygen, prevent oxidation, and extend shelf life. Liquid nitrogen is also used for rapid freezing and to create fine bubbles/creamy textures in beverages (e.g., nitro coffee or beer).
Is nitrogen a greenhouse gas?
No—diatomic nitrogen (N2, E941) is not a greenhouse gas because it does not absorb infrared radiation; nitrous oxide (N2O, E942) is.
What is the nitrogen cycle?
The nitrogen cycle is the movement of nitrogen among the atmosphere, soils, water, and living organisms. It includes fixation of N2 (E941) into reactive forms, biological uptake, and return to N2 via processes like denitrification.
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.