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  2. Calcium oxalate - Wikipedia

    en.wikipedia.org/wiki/Calcium_oxalate

    Some of the oxalate in urine is produced by the body. Calcium and oxalate in the diet play a part but are not the only factors that affect the formation of calcium oxalate stones. Dietary oxalate is an organic ion found in many vegetables, fruits, and nuts. Calcium from bone may also play a role in kidney stone formation.

  3. Weddellite - Wikipedia

    en.wikipedia.org/wiki/Weddellite

    Weddellite (Ca C 2 O 4 ·2H 2 O) is a mineral form of calcium oxalate named for occurrences of millimeter-sized crystals found in bottom sediments of the Weddell Sea, off Antarctica. Occasionally, weddellite partially dehydrates to whewellite, forming excellent pseudomorphs of grainy whewellite after weddellite's short tetragonal dipyramids. It ...

  4. Whewellite - Wikipedia

    en.wikipedia.org/wiki/Whewellite

    Whewellite / ˈ h juː ə l aɪ t / is a mineral, hydrated calcium oxalate, formula Ca C 2 O 4 ·H 2 O. [6] Because of its organic content it is thought to have an indirect biological origin; this hypothesis is supported by its presence in coal and sedimentary nodules. However, it has also been found in hydrothermal deposits where a biological ...

  5. Kidney stone disease - Wikipedia

    en.wikipedia.org/wiki/Kidney_stone_disease

    Calcium oxalate: 60% when urine is acidic (decreased pH) [71] Black/dark brown : Radio-opaque Some of the oxalate in urine is produced by the body. Calcium and oxalate in the diet play a part but are not the only factors that affect the formation of calcium oxalate stones. Dietary oxalate is found in many vegetables, fruits, and nuts.

  6. Oxalate - Wikipedia

    en.wikipedia.org/wiki/Oxalate

    Oxalate (systematic IUPAC name: ethanedioate) is an anion with the chemical formula C 2 O 2− 4. This dianion is colorless. It occurs naturally, including in some foods. It forms a variety of salts, for example sodium oxalate (Na 2 C 2 O 4), and several esters such as dimethyl oxalate ((CH 3) 2 C 2 O 4). It is a conjugate base of oxalic acid.

  7. Solubility table - Wikipedia

    en.wikipedia.org/wiki/Solubility_table

    Download as PDF; Printable version; In other projects Wikidata item; Appearance. move to sidebar hide ... Calcium oxalate: CaC 2 O 4: 6.7×10 −4: 0.0014: Calcium ...

  8. Food pyramid (nutrition) - Wikipedia

    en.wikipedia.org/wiki/Food_pyramid_(nutrition)

    [3] [4] [5] The pyramid was divided into basic foods at the base, including milk, cheese, margarine, bread, cereals and potato; a large section of supplemental vegetables and fruit; and an apex of supplemental meat, fish and egg. The pyramid competed with the National Board's "dietary circle", which KF saw as problematic for resembling a cake ...

  9. Hypocalcemia - Wikipedia

    en.wikipedia.org/wiki/Hypocalcemia

    Hypocalcemia is a medical condition characterized by low calcium levels in the blood serum. [5] The normal range of blood calcium is typically between 2.1–2.6 mmol/L (8.8–10.7 mg/dL, 4.3–5.2 mEq/L), while levels less than 2.1 mmol/L are defined as hypocalcemic.