HgS

[Chemical composition] The component is fixed, and may contain a small amount of Se, Te, Sb, Cu, or the like.

[Crystal Structure] Trigonal System; ; a 0 = 0.414 nm, c 0 = 0.949 nm; Z = 3. The crystal structure is a deformed NaCl type, that is, the NaCl type structure is deformed along L 3 to obtain a cinnabar structure.

[Form] Single crystal is often rhombohedral {10 0}, or parallel {0001} thick plate shape, or columnar extending parallel to the c-axis direction (Figure L-11). Double crystals are common and often form a through-crystal twin with a c-axis as a twin axis. The aggregates are often granulated, sometimes in the form of dense blocks and membranes.

Figure L-11 Crystal form of cinnabar

[Physical properties] bright red, sometimes lead surface was gray Qiang color; red streaks; adamantyl luster; translucent. Cleavage parallel {10 0} Complete. Hardness 2 to 2.5. The relative density is 8.05 to 8.2. When the composition is pure, the conductivity is extremely poor. For example, when 0.1% Se or Te is contained, the conductivity is remarkably increased.

[genesis and occurrence] is a standard mineral of low temperature hydrothermal deposit. Often symbiotic with mineral stibnite, realgar, orpiment, pyrite, cryptocrystalline quartz, calcite and the like.

China is one of the major producers of cinnabar. Akira County, Hunan, Guizhou and other places Wuyuan and copper-jen is famous for producing cinnabar.

[Identification features] bright red color and streaks, relatively high density, low hardness. The difference between black cinnabar and cinnabar is: gray black, black streaks, metallic luster, no cleavage, relative density 7.7, good electrical conductivity.

[Main use] The most important ore minerals for refining mercury . The single crystal of cinnabar can be used as a laser-modulated crystal, which is a key material for laser technology. In addition, large and intact crystals have a high viewing and collection value.

Polyether Polyols

This series products are the block and random copolymers made from allyl alcohol, EO and PO. And they are main materials for synthesizing polyether polysiloxane. Polyether modified polysiloxane can dissolve in the water and oil, and it is easy to regulate. It has all the excellent performances of the traditional polysiloxane product, in the meanwhile, it has the function of the lubricating, softening, good spreading and emulsification stability offered by polyether chains. And it can be used as PU foam stabilizers, textile auxiliary, oil field demulsifier, cosmetic auxiliary, coating leveling agent, detergent, defoaming agent and emulsifier etc. the copolymer of the polyether reacting with hydrogen containing silicone oil can be applied as PU foam stabilizers , textile auxiliary, oil field demulsifier and emulsifier etc..

Polyether Polyols For Polymeric Polyols,Ether Polyol,Caradol Polyols,Polymeric Polyols

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