メタけい酸 化学特性,用途語,生産方法
外観
白色の粉末
定義
本品は、含水ケイ酸であり、次の化学式で表される。
xは製法により異なり、０を含む
溶解性
塩酸, 硫酸, 硝酸, 塩化アンモニウムに不溶。エタノールにほとんど溶けない。
化粧品の成分用途
不透明化剤、抗ケーキング剤、口腔ケア剤、皮膚コンディショニング剤、親水性増粘剤、吸着剤、研磨.スクラブ剤、増量剤
説明
Silicic acid is the general name that refers to the group of chemical compounds of the element hydrogen, silicon, and oxygen with the formula [SiOx(OH)4-2x]n. H4SiO4 is the most predominant form.
Silicic acid is a hydrated form of silicon dioxide. It belongs to the family of Miscellaneous Silicates. These are inorganic compounds in which the largest metallic oxoanion is silicate, to which either no atom or a non metal atom is bonded.
Silicic acid is contained in many foods, such as grain, fruit and vegetables (borage). It is commonly used in the manufacture of toothpastes and as a stationary phase for chromatography.It is utilized for the manufacture catalyst and catalyst carrier. It is involved in tungsten filament production as chemical reagent and flux. Further, it is used for oil and wax decoloring.
化学的特性
Amorphous silica, the noncrystalline form of SiO2, is a transparent to gray, odorless, amorphous powder
使用
Silicic acid is used in protein chromatography. Silicic acid has been used in a study to demonstrate the anti-biofilm potential of a glycolipid surfactant produced by a tropical marine strain of
Serratia marcescens. Silicic acid has also been used to study the antioxidant activity of fresh and processed Jalapen?o and Serrano peppers.
定義
The jellylike precipitate obtained when sodium
silicate solution is acidified. The proportion of
water varies with the conditions of preparation
and decreases gradually during drying and ignition,
until relatively pure silica remains. During drying
the je
安全性プロファイル
An inhalation hazard. Poison by intravenous route. An eye irritant and nuisance dust. Questionable carcinogen. Mutation data reported. See also other silica entries and SILICATES
職業ばく露
Amorphous fumed silica is used as a mineral, natural or synthetic fiber. A potential danger to those involved in the production and handling of fumed silica for paint pigments or catalysts. Diatomaceous earth is used in clarifying liquids, in manufacture of fire brick and heat insulators; used as a filtering agent; as a filler in construction materials; pesticides, paints, and varnishes. A potential danger to those involved in mining of diatomaceous earth or fabrication of products there from.
不和合性
Silica, amorphous is a noncombustible solid. Generally unreactive chemically. Incompatible with fluorine, oxygen difluoride, chlorine trifluoride. Soluble in molten alkalis and reacts with most metallic oxides at high temperature.
廃棄物の処理
Sanitary landfill.
参考文献
S. Sjoberg, et al., Marine Chem., 13, 35 (1983), DOI: 10.1016/0304-4203(83)90047-6.
メタけい酸 上流と下流の製品情報
原材料
準備製品