bone charcoal , także: bone char

Bone charcoal is used by industry to refine sugar.

A: Some refined sugars use bone charcoal as a decolourant.

Bone charcoal is the oldest known water defluoridation agent and was widely used in USA from the 1940s through to the 1960s.

Bone charcoal," Oedipa remembered. "

This project will test, under field conditions, the use of a household defluoridation method based on the use of bone charcoal that has been locally prepared.

Bone is used to produce bone meal for stock feed, production of fertiliser, glue, bone china and bone charcoal.

Into the commercial break now roared a deafening ad for Beaconsfield Cigarettes, whose attractiveness lay in their filter's use of bone charcoal, the very best kind.

I have heard that bone charcoal is not used in Australia in the processing of white sugar anymore, except for in Western Australia.

Spirits are suitable for vegetarians except for some Russian and Eastern European Vodkas which may have used bone charcoal in their production.

Bones: Bones & cartilages are converted into stock feed, fertiliser glue, dice, knife handles, buttons, bone charcoal, bone china.

As I remember," said Rupen slowly, thoughtfully, "phosphorus is obtained from either phosphorus-bearing minerals, rocks, or from bones or bone charcoal.

Human bone char, referred to as "bone charcoal," is mentioned in Thomas Pynchon's novel The Crying of Lot 49.

Colour case hardening occurs when soft steels were packed in a reasonably airtight crucible in a mixture of charred leather, bone charcoal and wood charcoal.

Bone charcoal is subject to such extreme temperatures (approximately 1200o F) during processing that it does not pose any risk for transmission of BSE and was deregulated in 1996.

Mamut picked out a piece of bone charcoal from the fire as Ayla got a mammoth skull and a hammer-shaped drumstick made of antler and sat down beside him.

Dan Barber of Blue Hill at Stone Barns, in Pocantico Hills, N.Y., cooking cabbage and asparagus with the help of a pork bone charcoal.

Defluoridation methods were tested and it was recommended that further work should concentrate on: modified activated alumina method (i.e. alumina mixed with clay); bone charcoal; and under special conditions, modified Nalgonda technique.

Vegans can be as strict or lax as they want to be in their food choices: the International Vegetarian Union's website includes vegan-friendly reminders about baking pans greased with animal fat, grain cereals that include animal-based glycerin, and sugar refined with bone charcoal.