云母

云母（CAS 12001-26-2）：分子式 Al6F2H2K2O22Si6、分子量 800.60。

产品概览

应用领域

登记用途：Uses: Mica、mainly muscovite and phlogopite、contains less than 1% quartz. Other species of mica are biotite、lepidolite、zimmwaldite、and roscoelite. Used as a filler for paint、cement、asphalt、and insulation material for electrical cables、Also used in drilling muds、cosmetics、and vacuum tubes、condensers、[ACGIH] Sericite is a variety of white mica、it is similar to muscovite and is used as a filler、carrier、and lubricant、[Reference #1]、Petroleum Production and Refining [Category: Industry]、Mining [Category: Industry]、In aircraft construction、PAPER & PAINT MANUFACTURE、& IN ELECTRIC INDUSTRY、Electrical equipment、vacuum tubes、incandescent lamps、dusting agent、lubricant、windows in high-temperature equipment、filler in exterior paints、glass and ceramic flux、roofing、rubber、mold-release- agent、specialty paper for insulation and filtration、wallpaper and wallboard joint cement、oil-well drilling muds.、Large transparent sheets used to serve as window panes...still used for slow combustion stoves、lanterns or peep-hole furnances...mica powder is used in the mfg of electric cables、pneumatic tyres、welding electrodes、bitmunized cardboard、paints and plastics、dielectric dressings、and flameproof insulators、it is often compacted with alkyd resins、vermiculite is widely used as an insulating material in the building industry、lepidolite is used in the glass and ceramic industries、For more Uses (Complete) data for MICA (6 total)、please visit the HSDB record page.、Use Classification: Cosmetics -> Opacifying、Industry Uses: Other、Lubricating agent、Filler、Not Known or Reasonably Ascertainable、Pigment、Consumer Uses: Filler、Household Products: Cosmetics product ingredient: Mica、Source: Mica is a group of silicate minerals that have a layered texture. Pearlescent pigments made from mica are commonly added to cosmetics such as eye shadows、lipsticks、and nail polishes to give them a shimmery appearance.、Potential health impacts: People are exposed to mica mainly by ingesting products that contain mica pigments or by inhaling particles. Studies of workers have shown that breathing in mica over long periods of time can damage human lungs. The lung condition caused by mica is called pneumoconiosis. Pneumoconiosis is similar to asbestosis (lung scarring caused by asbestos). The U.S. Food and Drug Administration considers mica-based pigments to be safe for use in foods、drugs、toothpastes、and contact lenses.、Product count: 1851、Information on 587 consumer products that contain Mica in the following categories is provided:、• Auto Products、• Hobby、Craft、• Home Maintenance、• Inside the Home、• Landscaping、Yard、• Personal Care、• Pet Care、Methods of Manufacturing: Sheet mica occurs naturally in pegmatites as hexagonal blocks which、owing to the mineral's perfect basal cleavage、are referred to as "books". Its mode of occurrence and the nature of the mineral require sheet mica to be mined and dressed by hand. Upon removal the "book" is cobbed or cleaned by hand to remove adherent quartz or feldspar、and then split with knives into successively thinner sheets.、Production of dry ground mica in the United States is influenced by its use in plasterboard jointing compounds. In this respect the United States differs from most other countries. Most production utilizes <3.35mm (6mesh) scrap as feedstock which is subjected to air micronization、the oversize fraction >150 - 250 um (10 - 60 mesh) is removed on dry screens. Mica used in oil-well drilling is generally a byproduct of feldspar and kaolin extraction、having been segregated by flotation or water classification. The mica is dried and then sieved with multideck screens、the oversize particles (>8 mm) are subjected to impact milling.、In wet grinding high quality mica scrap is ground with up to 20 wt% water in edge-runner mills. It is then dried and classified to 150、75、and 45 um (100、200、and 325 mesh sizes、respectively).Wet ground mica particles have a typical thickness of 0.1 - 0.8 um and a high aspect ratio.、Micronized mica is produced by grinding fine-grained byproduct scrap to give a particle size below 40 um. This is achieved by propelling the particles at high speed into a confined enclosure which results in interparticle comminution. Superheated steam or compressed air can be used as the vehicle to effect micronization、particle size being controlled by residence time in the mill and removal of oversize particles by air classification.、For more Methods of Manufacturing (Complete) data for MICA (6 total)、Impurities: Certain varieties contain traces of iron、titanium、lithium、sodium and fluorine.、Phlogopite mica、Formulations、Preparations: Block mica is knife-dressed sheet mica of which 95 wt% has a minimum thickness of 0.2 mm、with the remainder having a minimum thickness of 0.18 mm. The minimum useable area is 625 sq mm. Thins are defined as knife-dressed sheets with a thickness of 0.05 - 0.18 mm. Films are split from superior quality block mica、they overlap with thins in that they have thicknesses of 0.02 - 0.18 mm. Splittings are laminae with a maximum thickness of 0.03 mm and a minimum useable area of 450 sq mm.、Forms: Block、sheet、powder、single crystals.、Several grade forms from 60-mesh to 400-mesh available、aqueous dispersion grades.、Consumption Patterns: Electrical applications、95.5%、Vacuum tubes、33%、Capacitors、0.1%、Other materials 2.1% (1979)、Ground mica sold or used by producers by end use: Joint cement、46.6%、Paint、13%、Well-drilling muds、15.8%、and Agricultural products、molded electrical insulation、plastics、welding rods、textile and decorative coatings、and roofing materials、24.7% (1984)、Ground mica end uses in 1992 (in thousand metric tons): joint cement、43、paint、16、4、well-drilling fluid、2、other (includes molded electrical in。

技术档案

这个产品是什么

云母 是一种化工化合物，登记 CAS 号为 12001-26-2，分子式 Al6F2H2K2O22Si6（分子量 800.60）。

识别信息

登记 CAS 号：12001-26-2

其分子式 Al6F2H2K2O22Si6 由 6 个铝、2 个氟、2 个氢、2 个钾、22 个氧、6 个硅 组成。

别名/同义词：云母 · Mica

常见问题

PubChem 公开数据