enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Corsi–Rosenthal Box - Wikipedia

    en.wikipedia.org/wiki/Corsi–Rosenthal_Box

    An example of a homemade unit. The Corsi–Rosenthal Box is a design for a do-it-yourself air purifier that can be built comparatively inexpensively. It consists of four [1] or five [2] [3] HVAC particulate air filters that form a cube and a box fan to draw air through the filters.

  3. Dry media reaction - Wikipedia

    en.wikipedia.org/wiki/Dry_media_reaction

    A dry media reaction or solid-state reaction or solventless reaction is a chemical reaction performed in the absence of a solvent. [1] Dry media reactions have been developed in the wake of developments in microwave chemistry, and are a part of green chemistry. [2] The drive for the development of dry media reactions in chemistry is:

  4. Rosin - Wikipedia

    en.wikipedia.org/wiki/Rosin

    Rosin (/ ˈ r ɒ z ɪ n /), also known as colophony or Greek pitch (Latin: pix graeca), is a resinous material obtained from pine trees and other plants, mostly conifers.The primary components of rosin are diterpenoids, i.e., C 20 carboxylic acids.

  5. Waterborne resins - Wikipedia

    en.wikipedia.org/wiki/Waterborne_resins

    Most coatings have four basic components. These are the resin, solvent, pigment and additive systems [5] but the resin or binder is the key ingredient. Continuing environmental legislation in many countries along with geopolitics such as oil production are ensuring that chemists are increasingly turning to waterborne technology for paint/coatings and since resins or binders are the most ...

  6. Air-free technique - Wikipedia

    en.wikipedia.org/wiki/Air-free_technique

    An ordinary glovebox, showing the two gloves for manipulation, with airlock on the right. The most straightforward type of air-free technique is the use of a glovebox.A "glove bag" uses the same idea, but is usually a poorer substitute because it is more difficult to purge, and less well sealed.

  7. Police reveal identity of Philly's slain 'Boy in the Box'

    www.aol.com/news/police-reveal-identity-phillys...

    Nearly 66 years after the battered body of a young boy was found stuffed inside a cardboard box, Philadelphia police say they have finally unlocked a central mystery in the city’s most notorious ...

  8. Rosin (chemical) - Wikipedia

    en.wikipedia.org/wiki/Rosin_(chemical)

    The three cinnamyl alcohol-vicianosides of Rhodiola rosea, commonly referred to as "rosavins," are rosin, and the structurally related disaccharide rosavin, which is the arabinose ester of rosin, and rosarin, the arabinofuranose ester of rosin.

  9. Abietic acid - Wikipedia

    en.wikipedia.org/wiki/Abietic_acid

    Abietic acid is found in rosin obtained from pine trees. [3] Pure abietic acid is a colorless solid, but commercial samples are usually a glassy or partly crystalline yellowish solid that melts at temperatures as low as 85 °C (185 °F). [4] Abietic acid is soluble in alcohols, acetone, and ethers.