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  2. Sodium nitrate - Wikipedia

    en.wikipedia.org/wiki/Sodium_nitrate

    Sodium nitrate has also been investigated as a phase-change material for thermal energy recovery, owing to its relatively high melting enthalpy of 178 J/g. [14] [15] Examples of the applications of sodium nitrate used for thermal energy storage include solar thermal power technologies and direct steam generating parabolic troughs. [14]

  3. Food web - Wikipedia

    en.wikipedia.org/wiki/Food_web

    A freshwater aquatic food web. The blue arrows show a complete food chain (algae → daphnia → gizzard shad → largemouth bass → great blue heron). A food web is the natural interconnection of food chains and a graphical representation of what-eats-what in an ecological community.

  4. Sodium nitrite - Wikipedia

    en.wikipedia.org/wiki/Sodium_nitrite

    Sodium nitrite works by creating methemoglobin, where the iron atom at the center of the heme group is in the oxidized ferric (Fe 3+) state, which binds with cyanide with greater affinity than its binding to the cytochrome C oxidase, and thus removes it from blocking the metabolic function of mitochondria. [31] Sodium nitrite came into medical ...

  5. Curing (food preservation) - Wikipedia

    en.wikipedia.org/wiki/Curing_(food_preservation)

    The combination of table salt with nitrates or nitrites, called curing salt, is often dyed pink to distinguish it from table salt. [6] Neither table salt nor any of the nitrites or nitrates commonly used in curing (e.g., sodium nitrate [NaNO 3], [7] sodium nitrite, [7] and potassium nitrate [8]) is naturally pink.

  6. Soil food web - Wikipedia

    en.wikipedia.org/wiki/Soil_food_web

    An example of a topological food web (image courtesy of USDA) [1]. The soil food web is the community of organisms living all or part of their lives in the soil. It describes a complex living system in the soil and how it interacts with the environment, plants, and animals.

  7. Curing salt - Wikipedia

    en.wikipedia.org/wiki/Curing_salt

    Also called Pink curing salt #2. It contains 6.25% sodium nitrite, 4% sodium nitrate, and 89.75% table salt. [4] The sodium nitrate found in Prague powder #2 gradually breaks down over time into sodium nitrite, and by the time a dry cured sausage is ready to be eaten, no sodium nitrate should be left. [3]

  8. Nitrite - Wikipedia

    en.wikipedia.org/wiki/Nitrite

    For example: H 2 N 2 O 2 + 2 H + + 2 e − ⇌ N 2 + 2 H 2 O; E 0 = +2.65 V. Oxidation reactions usually result in the formation of the nitrate ion, with nitrogen in oxidation state +5. For example, oxidation with permanganate ion can be used for quantitative analysis of nitrite (by titration): 5 NO − 2 + 2 MnO − 4 + 6 H + → 5 NO − 3 ...

  9. List of edible salts - Wikipedia

    en.wikipedia.org/wiki/List_of_edible_salts

    A saltwater used in the preservation of food. Butter salt: Seasoned salt with butter flavouring. Celery salt. Salt seasoned with celery seeds. Cooking salt. A coarse salt that is used in cooking but not at the table. Curing salt. A salt containing sodium nitrite, used in the preservation of meats. [1] Cyclic salt: Any salt deposited by the wind ...