Search results
Results from the WOW.Com Content Network
Substance Formula 0 °C 10 °C 20 °C 30 °C 40 °C 50 °C 60 °C 70 °C 80 °C 90 °C 100 °C Barium acetate: Ba(C 2 H 3 O 2) 2: 58.8: 62: 72: 75: 78.5: 77: 75
The conversion is not dependent on gut bacteria, occurring in germ-free rats [3] [4] and in parenterally-administered K 1 in rats. [5] [6] Tissues that accumulate high amounts of MK-4 have a capacity to convert up to 90% of the available K 1 into MK-4. [3] [4] [dubious – discuss] K 1 is converted to MK-4 in three steps: [7]
Vitamin K 2 or menaquinone (MK) (/ ˌ m ɛ n ə ˈ k w ɪ n oʊ n /) is one of three types of vitamin K, the other two being vitamin K 1 (phylloquinone) and K 3 . K 2 is both a tissue and bacterial product (derived from vitamin K 1 in both cases) and is usually found in animal products or fermented foods .
Menadione is a synthetic [3] [4] organic compound with the formula C 6 H 4 (CO) 2 C 2 H(CH 3). It is an analog of 1,4-naphthoquinone with a methyl group in the 2-position. [5] It is sometimes called vitamin K 3. Use is allowed as a nutritional supplement in animal feed because of its vitamin K activity.
K2-33b (also known by its EPIC designation EPIC 205117205.01) is a very young super-Neptune exoplanet, orbiting the pre-main-sequence star K2-33. It was discovered by NASA 's Kepler space telescope on its "Second Light" mission.
Nessler's reagent, named after Julius Neßler (Nessler), is a 0.09 mol/L solution of potassium tetraiodomercurate(II) in 2.5 mol/L potassium hydroxide.This pale solution becomes deeper yellow in the presence of ammonia (NH 3).
Potassium sulfate (K 2 SO 4) has been known since early in the 14th century.It was studied by Glauber, Boyle, and Tachenius.In the 17th century, it was named arcanuni or sal duplicatum, as it was a combination of an acid salt with an alkaline salt.
K2 is an Italian free-to-air television channel owned by Warner Bros. Discovery EMEA, a division of Warner Bros. Discovery for children between 4 and 14 years of age. Its registered office is in Rome .