13983-17-0

• 常用中文名：偏硅酸钙
• 常用英文名：Calcium metasilicate
• CAS号：13983-17-0
• 分子式：CaO₃Si
• 分子量：116.162
• 相关类别： 无机化工 无机盐 硅化物及硅酸盐
• 发布时间：2018-06-13 13:10:16
• 更新时间：2024-01-03 11:49:48
• 用途一：硅灰石在涂料工业中可以作为体质颜料兼增量剂使用。因为它能增加白色涂料的明亮色调，并能长时间保持这种色调。硅灰石的针状结晶使它可以作为涂料良好的平安剂，并可以改善涂料的流平性。硅灰石的粒子形状使它可以作为涂料良好的悬浮剂，使色漆的沉淀柔软易于分散。可以在自清洁型涂料中作为增强剂。硅灰石粉碱性大，非常适用于聚醋酸乙烯涂料，使着色颜料色散均匀。硅灰石还具有改进金属漆防腐蚀能力。除用于水性涂料外，还可用于底漆、中间涂层、油性涂料、路标涂料等，在沥青涂料中可取代石棉。在乳胶漆中能部分取代钛白粉，同时不使白度和遮盖力下降。也可用于冶金、陶瓷、电焊条、塑料、橡胶等行业。
  用途二：可用作橡胶、塑料、树脂、油漆、涂料的填充剂。还广泛用于陶瓷、冶金、建筑、机械、电子、焊接、造纸、农业和汽车工业等部门。硅灰石具有广阔的开发前景。

名称

• 中文名: 偏硅酸钙
• 英文名: calcium silicate
• 英文别名: EINECS 237-772-5

物化性质

• 密度: 2.9
• 熔点: 1540ºC
• 分子式: CaO₃Si
• 分子量: 116.162
• 精确质量: 115.924263
• PSA: 63.19000
• 外观性状: 白色或奶油色粉末
• 折射率: 1.62-1.64
• 储存条件: 室温
• 稳定性: Stable.
• 更多:

  1.性状：三斜晶系，细板状晶体，集合体呈放射状或纤维状。颜色呈白色，有时带浅灰、浅红色调。玻璃光泽，解理面呈珍珠光泽

  2.相对密度：2.75～3.10

  3.溶点(℃)：1540

  4.硬度：4.5～5.5

  5.溶解性：完全溶于浓盐酸。一般情况下耐酸、耐碱、耐化学腐蚀。

毒性和生态

CHEMICAL IDENTIFICATION RTECS NUMBER : ZC9750000 CHEMICAL NAME : Wollastonite CAS REGISTRY NUMBER : 13983-17-0 LAST UPDATED : 199710 DATA ITEMS CITED : 12 MOLECULAR FORMULA : O3-Si.Ca MOLECULAR WEIGHT : 116.17 HEALTH HAZARD DATA ACUTE TOXICITY DATA TYPE OF TEST : TDLo - Lowest published toxic dose ROUTE OF EXPOSURE : Implant SPECIES OBSERVED : Rodent - rat DOSE/DURATION : 200 mg/kg TOXIC EFFECTS : Tumorigenic - equivocal tumorigenic agent by RTECS criteria Tumorigenic - tumors at site of application MUTATION DATA TYPE OF TEST : Sister chromatid exchange TEST SYSTEM : Human Lymphocyte DOSE/DURATION : 10 mg/L REFERENCE : MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 300,45,1993 *** REVIEWS *** IARC Cancer Review:Animal Limited Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 42,145,1987 IARC Cancer Review:Human Inadequate Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 42,145,1987 IARC Cancer Review:Human Inadequate Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 68,283,1997 IARC Cancer Review:Animal Inadequate Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 68,283,1997 IARC Cancer Review:Group 3 IMSUDL IARC Monographs, Supplement. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) No.1- 1979- Volume(issue)/page/year: 7,377,1987 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - M1813 No. of Facilities: 112 (estimated) No. of Industries: 5 No. of Occupations: 9 No. of Employees: 1878 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - M1813 No. of Facilities: 4588 (estimated) No. of Industries: 52 No. of Occupations: 52 No. of Employees: 70383 (estimated) No. of Female Employees: 10024 (estimated)

安全

• 危害码 (欧洲): Xi:Irritant
• 风险声明 (欧洲): R36/37
• 安全声明 (欧洲): S22-S26-S37/39

制备

国内硅灰石已开发利用的矿山皆为露天开采。机械化程度较低。选矿方法随其产出特征和矿石类型的不同而有所不同，广泛应用的方法有手选、光电拣选、磁选、浮选、电选、重选等。