オルトケイ酸カルシウム

オルトケイ酸カルシウム · ケイ酸二カルシウム · dicalcium silicate · Dicalcium orthosilicate · Silicic acid (H4SiO4), calcium salt (1:2)

https://huagongshe.com/ja/chemical/14941

識別子と物理属性

CAS No.	10034-77-2
分子式	Ca2O4Si
平均分子量	172.24 g/mol
単同位体質量	171.88176697 g/mol
SMILES	[Ca+2].[Ca+2].[O-][Si]([O-])([O-])[O-]
InChIKey	JHLNERQLKQQLRZ-UHFFFAOYSA-N
PubChem CID	14941
EC No.	233-107-8
DTXSID	DTXSID5049570
現地名	オルトケイ酸カルシウム

化学・物理的性質

極性表面積	92.2
水素結合供与体数	0
水素結合受容体数	4
回転可能結合数	0
重原子数	7
形式電荷	0
複雑度	19.1
物質分類	Metals -> Metals, Inorganic Compounds
Physical Description	Large CrystalsCBIDry PowderOther SolidColorless, cream, or white odorless powder and pieces[Materion Advanced Chemicals MSDS]
InChI	InChI=1S/2Ca.2O3Si/c21-4(2)3/q2+22*-2
InChIKey	GGDIOEDJZLBCGA-UHFFFAOYSA-N
SMILES	[Ca+2].[Ca+2].[Si]([O-])([O-])=O.[Si]([O-])([O-])=O
EPAの化学物質情報	Silicic acid (H4SiO4), calcium salt (1:2) (10034-77-2)

安全性と法規制

規制情報	Chemical: Silicic acid (H4SiO4), calcium salt (1:2)Silicic acid (H4SiO4), calcium salt (1:2) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Silicic acid (H4SiO4), calcium salt (1:2) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)Dicalcium silicate: 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.
その他の安全情報	IMAP assessments - Silicic acid (H4SiO4), calcium salt (1:2): Human health tier I assessment
有害性の概要	May cause mild irritationSkin or eye contact may cause itching and rednessChronic inhalation exposure may cause lung injury[Materion Advanced Chemicals MSDS] See Calcium silicate. See Tricalcium silicate.
TSCA 収載状態	TSCA listed

用途

解説

オルトケイ酸カルシウム：Ca2SiO4(172.24)．セメントクリンカーの10～40％を占める主成分の一つで，セメント業界ではケイ酸二石灰(belite)とよばれる．独立した四面体型構造のSiO4からなる．

一般的な説明

Dicalcium silicate occurs when cement clinker is not completely saturated with calcium oxide. Pure dicalcium silicate melts congruently at 2130 ℃. In lime-rich raw mixes, C2S forms already at temperatures below 1000 ℃ by solid-state reaction. During the sintering process in the presence of a melt above 1250 ℃, C2S incorporates additional Ca2+, resulting in the formation of C3S.