Comparing E941 - Nitrogen vs E222 - Sodium bisulphite
Overview
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Found in 79 products
Found in 1,804 products
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Search volume over time
Interest over time for 3 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 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.
Is sodium bisulfite bad for you?
At approved food-use levels, sodium bisulfite (E222) is considered safe; regulators set a group ADI of 0–0.7 mg/kg body weight expressed as SO2. However, sulfite‑sensitive people—especially some asthmatics—may experience reactions like wheezing, hives, or headaches and should avoid it.
What is sodium bisulfite used for?
It’s an antioxidant and preservative that prevents browning and oxidation and helps control microbes, commonly used in products like wines, dried fruits, shrimp, and cut potatoes.
What is sodium bisulfite in food?
It’s a sulfiting agent (E222) that releases sulfur dioxide to protect color and flavor and extend shelf life; it must be declared on labels when present above about 10 ppm (as SO2).
How much sodium bisulfite to neutralize chlorine?
Approximately 1.5 mg of sodium bisulfite (NaHSO3) is needed per 1 mg of free chlorine (as Cl2) per liter, stoichiometrically. In practice use a slight excess and confirm with a chlorine test; the reaction releases heat and SO2, so handle carefully.
Is sodium bisulfite gluten free?
Yes—sodium bisulfite is a synthetic mineral salt and contains no gluten; any gluten risk would come from other ingredients, not the additive itself.