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2. Crucible - Wikipedia

   en.wikipedia.org/wiki/Crucible

   For completely accurate results, the crucible is handled with clean tongs because fingerprints can add a weighable mass to the crucible. Porcelain crucibles are hygroscopic, i. e. they absorb a bit of weighable moisture from the air. For this reason, the porcelain crucible and lid is also pre-fired (pre-heating to high temperature) to constant ...

3. Hessian crucible - Wikipedia

   en.wikipedia.org/wiki/Hessian_crucible

   The crucibles were made by firing kaolinitic clay at temperatures greater than 1100°C, forming mullite. Mullite is an aluminum silicate only described in the 20th century and is responsible for the excellent properties of the Hessian crucible. [1] [2] Main production centre of the Hessian crucibles was the village of Großalmerode.

4. Fritted glass - Wikipedia

   en.wikipedia.org/wiki/Fritted_glass

   A fritted filter is often part of a glassware item, so fritted glass funnels and fritted glass crucibles are available. [ 2 ] Laboratory scale spargers (also known as gas diffusing stones or diffusors) as well as scrubbers , and gas-washing bottles (or Drechsel bottles [ 3 ] ) are similar glassware items which may use a fritted glass piece ...

5. Frit - Wikipedia

   en.wikipedia.org/wiki/Frit

   Frit. A frit is a ceramic composition that has been fused, quenched, and granulated.Frits form an important part of the batches used in compounding enamels and ceramic glazes; the purpose of this pre-fusion is to render any soluble and/or toxic components insoluble by causing them to combine with silica and other added oxides. [1]

6. Gooch crucible - Wikipedia

   en.wikipedia.org/wiki/Gooch_crucible

   A Gooch crucible, named after Frank Austin Gooch, [1] is a filtration device for laboratory use (and was also called a Gooch filter [2]). It is convenient for collecting a precipitate directly within the vessel in which it is to be dried, possibly ashed , and finally weighed in gravimetric analysis .

7. Madonna Recalls Pain of Losing Mom to Cancer When She ... - AOL

   www.aol.com/madonna-recalls-pain-losing-mom...

   The death of her mother when she was just 5 years old hit Madonna hard.. In archival clips and audio featured in the new Sky documentary Becoming Madonna, the Queen of Pop, 66, opens up about how ...

8. ZBLAN - Wikipedia

   en.wikipedia.org/wiki/ZBLAN

   First the raw products are introduced in a platinum crucible, then melted, fined above 800 °C and cast in a metallic mold to ensure a high cooling rate , which favors glass formation. Finally they are annealed in a furnace to reduce the thermal stresses induced during the quenching phase.

9. The Dow just did something it hasn’t done since Jimmy ... - AOL

   www.aol.com/dow-danger-doing-something-hasn...

   The world’s most famous market indicator just suffered its longest losing streak since Jimmy Carter was in the White House. The Dow Jones Industrial Average closed lower by 267 points on Tuesday ...