基本情報
- 標準SMILES
O=[Si](O)O- InChIKey
IJKVHSBPTUYDLN-UHFFFAOYSA-N- 分子式
- H2O3Si
- 平均分子量
- 78.099 g/mol
- 単同位体質量
- 77.97732045
概要
See also: Silicate (annotation moved to).
名称と識別子
- 優先名称
- Metasilicic acid
- IUPAC
- dihydroxy(oxo)silane
- 現地名
- メタけい酸
- 英語名
- Silicic acid
- 分子式
- H2O3Si
- 分子量
- 78.1
名称と別名
名称をさらに表示
データベース識別子
- CAS
1343-98-2、7699-41-4- PubChem CID
- 14768
- DTXSID
DTXSID30872499- UNII
- 4OI8D3YOH1
- EC Number
- 231-716-3
- Nikkaji
- J215.993G
物性
構造計算による物性
- 極性表面積
- 57.5 Ų
- 水素結合供与体数
- 2
- 水素結合受容体数
- 3
- 回転可能結合数
- 0
- 重原子数
- 4
- 形式電荷
- 0
- 複雑度
- 26.3
物理化学的性質
- 融点
- 1704 ℃ · 1704℃
- 溶解性
- 2 O; · insoluble in H2O; soluble in HF
- 外見
- 粉
- 色
- 白い
- PH
- 1 · pKa1= 9.65, pKa2 = 13.09(25℃)
- Dielectric constant
- 2 · 2.0(Ambient)
- InChI
- 1S/H2O3Si/c1-4(2)3/h1-2H
- InChIKey
- IJKVHSBPTUYDLN-UHFFFAOYSA-N
- SMILES
- O[Si](O)=O
- CAS データベース
- 7699 · 7699-41-4(CAS DataBase Reference)
- EPAの化学物質情報
- Silicic acid (H2SiO3) (7699-41-4)
化学的性質
化学的特性Amorphous silica, the noncrystalline form of SiO2, is a transparent to gray, odorless, amorphous powder
安全と法規制
GHS分類
GHS Classification
This chemical does not meet GHS hazard criteria for 4.8% (5 of 105) of reports.
Warning
H319 (90.5%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
P261, P264+P265, P271, P280, P304+P340, P305+P351+P338, P319, P337+P317, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 105 reports by companies from 7 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
危険有害性情報
Regulatory Information
Chemical: Silicic acid (H2SiO3)
Silicic acid (H2SiO3): Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.
安全データ
- OEB
- B
- OEL
- TWA: 6.0 mg/m3
- wgk
- 3
- tsca
- TSCA listed
- rtecs
- VV8853000
- risk_code
- 36/37
- hazard_code
- Xi
- safety_code
- 22-26-36
- Hazard Classifications
- Eye Irrit. 2STOT SE 3
- ストレージクラス
- 11 - Combustible Solids
化学と産業
用途と製造
応用分野
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.
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 Jalapeno and Serrano peppers.
上流・下流製品情報
上流原料
下流製品
サプライヤー50 社
補足説明
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
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
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