查看“︁矽酸鈣”︁的源代码

{{chemref|time=2011-01-30T13:28:34+00:00}}
{{Chembox
|ImageFile=Wollastonite-cell.png
| Verifiedfields = changed
| Watchedfields = changed
| verifiedrevid = 387926039
| PIN = Calcium silicate
| SystematicName = Dicalcium silicate
| Section1 = {{Chembox Identifiers
|  CASNo = 1344-95-2
|   CASNo_Ref = {{cascite|correct|CAS}}
|  CASNo1 = 111811-33-7
|   CASNo1_Comment = hydrate
|   CASNo1_Ref = {{cascite|correct|??}}
|  CASNo2 = 12168-85-3
|   CASNo2_Comment = calcium oxide
|   CASNo2_Ref = {{cascite|correct|CAS}}
|  PubChem = 14941
|   PubChem_Ref = {{Pubchemcite|correct|PubChem}}
|  PubChem1 = 44154858
|   PubChem1_Comment = hydrate
|   PubChem1_Ref = {{Pubchemcite|correct|PubChem}}
|  PubChem2 = 25523
|   PubChem2_Comment = calcium oxide
|   PubChem2_Ref = {{Pubchemcite|correct|PubChem}}
|  ChemSpiderID = 14235
|   ChemSpiderID_Ref = {{chemspidercite|changed|chemspider}}
|  ChemSpiderID1 = 23811
|   ChemSpiderID1_Comment = calcium oxide
|   ChemSpiderID1_Ref = {{chemspidercite|correct|chemspider}}
|  UNII = S4255P4G5M
|   UNII_Ref = {{fdacite|correct|FDA}}
|  EINECS = 235-336-9
|  KEGG_Ref = {{keggcite|changed|kegg}}
| KEGG = D03309
|  MeSHName = Calcium+silicate
|  ATCCode_prefix = A02
|  ATCCode_suffix = AC02
|  SMILES = [Ca++].[Ca++].[O-][Si]([O-])([O-])[O-]
|  StdInChI_Ref = {{stdinchicite|changed|chemspider}}
| StdInChI = 1S/2Ca.O4Si/c;;1-5(2,3)4/q2*+2;-4
|  StdInChIKey_Ref = {{stdinchicite|changed|chemspider}}
| StdInChIKey = JHLNERQLKQQLRZ-UHFFFAOYSA-N}}
| Section2 = {{Chembox Properties
|  Ca = 2
|  Si = 1
|  O = 4
|  Appearance = 白色晶体
|  MeltingPtC = 1540}}
| Section3 = {{Chembox Structure
|   CrystalStruct = 
  }}
| Section7 = {{Chembox Hazards
|   ExternalMSDS = [http://www.bnzmaterials.com/msds/msds218.html]
|   MainHazards = 刺激性
|   FlashPt = 
|   RPhrases = 
|   SPhrases = 
|   NFPA-H = 2
|   NFPA-F = 0
|   NFPA-R = 0 
  }}
| Section8 = {{Chembox Related
|   OtherAnions =
  }}
}}

'''矽酸鈣'''，[[化學式]]為Ca<sub>2</sub>SiO<sub>4</sub>，用作高溫絕緣及防火。矽酸鈣沒有已知對健康有不利影響。矽酸鈣不溶於[[水]]。

==高溫絕緣==
矽酸鈣是常用替代[[石棉]]的一種安全隔熱材料。
==制备==
[[矽酸鹽]]与[[氫氧化鈣]]在高温下反应，化学方程式如下：<br>
:<math>\mathrm{H_4SiO_4+Ca(OH)_2\xrightarrow{\Delta}Ca_2SiO_4 + 4H2O}</math><br>
或者[[碳酸鈣]]与[[二氧化矽]]反应，化学方程式如下：<br>
:<math>\mathrm{2CaCO_3 + SiO_2\xrightarrow{\Delta}Ca_2SiO_4 + 2CO_2}</math><br>
==防火==
矽酸鈣是[[歐洲]]其中最多用在防火的材料。歐洲人更傾向於使用矽酸鈣製成包層。

==參見==
*[[矽酸鈣板]]

{{矽化合物}}
{{鈣化合物}}
{{抗酸药}}

[[Category:鈣化合物]]
[[Category:矽酸鹽]]
[[Category:有E编码的食品添加剂]]