powdered silica

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• Plaster — The term plaster can refer to plaster of Paris, lime plaster, or cement plaster. This article deals mainly with plaster of Paris.Plaster of Paris is a type of building material based on calcium sulfate hemihydrate, nominally CaSO4·0.5H2O. It is… …   Wikipedia

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• cement — 1. A layer of bonelike mineralized tissue covering the dentin of the root and neck of a tooth that serves to anchor the fibers of the periodontal ligament. SYN: cementum [TA], substantia ossea dentis, tooth c.. 2. In …   Medical dictionary

• Filler — Fill er, n. 1. One who, or that which, fills; something used for filling. [1913 Webster] T is mere filler, to stop a vacancy in the hexameter. Dryden. [1913 Webster] They have six diggers to four fillers, so as to keep the fillers always at work …   The Collaborative International Dictionary of English

• Silicon dioxide — Silica redirects here. For other uses, see Silica (disambiguation). Silicon dioxide …   Wikipedia

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• chromatography — chromatographer, n. chromatographic /kreuh mat euh graf ik, kroh meuh teuh /, adj. chromatographically, adv. /kroh meuh tog reuh fee/, n. Chem. the separation of mixtures into their constituents by preferential adsorption by a solid, as a column… …   Universalium

• Ultramarine — infobox color|title=Ultramarine|hex=120a8f|textcolor=white r=18|g=10|b=143 c=100|m=90|y=4|k=1 h=244|s=93|v=56 Ultramarine is a blue pigment consisting primarily of a double silicate of aluminium and sodium with some sulfides or sulfates, and… …   Wikipedia

• Silicosis — Classification and external resources ICD 10 J62 ICD 9 502 …   Wikipedia

• Sand casting — Sand casting, also known as sand molded casting, is a metal casting process characterized by using sand as the mold material. It is relatively cheap and sufficiently refractory even for steel foundry use. A suitable bonding agent (usually clay)… …   Wikipedia