摩熵化学
数据库官网
小程序
打开微信扫一扫
首页 分子通 化学资讯 化学百科 反应查询 关于我们
请输入关键词

氟化钙 | 7789-75-5

中文名称
氟化钙
中文别名
萤石;氟化钙,沉淀物;萤石粉;氟石粉;氟石
英文名称
calcium fluoride
英文别名
calcium difluoride;fluorspar;calcium;difluoride
氟化钙化学式
CAS
7789-75-5;14542-23-5
化学式
CaF2
mdl
——
分子量
78.0748
InChiKey
WUKWITHWXAAZEY-UHFFFAOYSA-L
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

物化性质

  • 熔点:
    1402 °C
  • 沸点:
    2500 °C (lit.)
  • 密度:
    3.18 g/mL at 25 °C (lit.)
  • 闪点:
    2500°C
  • 溶解度:
    微溶于酸;不溶于丙酮。
  • 暴露限值:
    a/nm
  • 介电常数:
    b/nm
  • 物理描述:
    Calcium fluoride appears as odorless gray powder or granules. Sinks in water. (USCG, 1999)
  • 颜色/状态:
    White powder or cubic crystals
  • 自燃温度:
    Not flammable (USCG, 1999)
  • 分解:
    When heated to decomposition it emits toxic fumes of /hydrogen fluoride/.
  • 汽化热:
    335 KJ/mol
  • 折光率:
    Index of refraction: 1.4338

计算性质

  • 辛醇/水分配系数(LogP):
    -6.37
  • 重原子数:
    3
  • 可旋转键数:
    0
  • 环数:
    0.0
  • sp3杂化的碳原子比例:
    0.0
  • 拓扑面积:
    0
  • 氢给体数:
    0
  • 氢受体数:
    2

ADMET

毒理性
  • 致癌性证据
A4;不能分类为人类致癌物。/氟化物,以F表示/
A4; Not classifiable as a human carcinogen. /Fluorides, as F/
来源:Hazardous Substances Data Bank (HSDB)
毒理性
  • 暴露途径
该物质可以通过吸入其气溶胶和通过吞食被吸收进人体。
The substance can be absorbed into the body by inhalation of its aerosol and by ingestion.
来源:ILO-WHO International Chemical Safety Cards (ICSCs)
毒理性
  • 摄入症状
恶心。呕吐。
Nausea. Vomiting.
来源:ILO-WHO International Chemical Safety Cards (ICSCs)
毒理性
  • 人类毒性摘录
氟石的危害主要是由于其氟含量和硅含量。长期吸入或摄入可能会导致体重和食欲下降、贫血以及骨骼和牙齿缺陷。肺部病变...在吸入含有92-96%氟化钙和3.5%二氧化硅的粉尘的人群中有所报告。...在氟石矿工中报告了支气管炎和硅肺的病例。
... HAZARDS OF FLUORSPAR ARE DUE PRIMARILY TO ... FLUORINE CONTENT AND ITS SILICA CONTENT. CHRONIC INHALATION OR INGESTION MAY CAUSE LOSS OF WEIGHT AND APPETITE, ANEMIA, AND BONE AND TEETH DEFECTS. PULMONARY LESIONS ... REPORTED AMONG PERSONS INHALING DUST CONTAINING 92-96% CALCIUM FLUORIDE & 3.5% SILICA. ... CASES OF BRONCHITIS & SILICOSIS ... REPORTED AMONG FLUORSPAR MINERS.
来源:Hazardous Substances Data Bank (HSDB)
毒理性
  • 人类毒性摘录
临床数据显示,钠盐的毒性介于4类和5类之间……尽管在大鼠中毒性较低,但氟化钡在人体中的毒性可能与钠盐相当(或者略高)。氟化钙则相对良性……因其溶解度低且电离程度低。
CLINICAL DATA INDICATE THAT THE SODIUM SALT LIES NEAR THE BORDERLINE BETWEEN TOXICITY CLASSES 4 & 5 ... ALTHOUGH LESS TOXIC IN ANIMALS, BARIUM FLUORIDE MAY BE AS TOXIC IN MAN AS THE SODIUM SALT (OR PREHAPS SLIGHTLY MORE TOXIC). CALCIUM FLUORIDE IS COMPARATIVELY BENIGN ... BECAUSE OF ITS LOW SOLUBILITY & LOW IONIZATION.
来源:Hazardous Substances Data Bank (HSDB)
吸收、分配和排泄
每天暴露于13毫克氟化物的老鼠从治疗第二天开始逐渐增加氟化物的排泄。在第一天,血清中的氟化物浓度是对照组的两倍。肺部的氟化物浓度高于其他器官,而股骨和门齿中的水平也高于对照组。
RATS EXPOSED DAILY TO 13 MG SHOWED GRADUAL INCR IN EXCRETION OF FLUORIDE FROM 2ND DAY AFTER TREATMENT. ON 1ST DAY FLUORIDE CONCN IN SERUM WAS 2 TIMES HIGHER THAN CONTROL. FLUORIDE LUNG CONCN WAS GREATER THAN OTHER ORGANS & LEVEL IN FEMUR & INCISORS WERE HIGHER THAN CONTROLS.
来源:Hazardous Substances Data Bank (HSDB)
吸收、分配和排泄
50名从事磷肥生产约30年的工人的尿氟排泄量范围为1.0至9.6毫克F-/升(对照组:0.3-1.2)。环境中的氟(氟石)浓度范围为0.15-0.62毫克/立方米,气态氟的范围为0.04-0.17毫克/立方米。
URINE FLUORIDE EXCRETION RANGED FROM 1.0 TO 9.6 MG F-/L (CONTROLS: 0.3-1.2) IN GROUP OF 50 WORKERS ENGAGED FOR APPROX 30 YR IN PHOSPHATE FERTILIZER PRODN. AMBIENT FLUORIDE (FLUORSPAR) CONCN RANGED FROM 0.15-0.62 MG/CU M & GASEOUS FLUORIDE RANGED FROM 0.04-0.17 MG/CU M.
来源:Hazardous Substances Data Bank (HSDB)
吸收、分配和排泄
气相色谱用于测量91名女性在足月时母体和胎儿血浆的无机氟化物值。她们被分配到四个组中的一个:A组为未治疗的对照组;B组在妊娠最后三个月每天接受一次1.5毫克氟化物(以氟化钙形式)的单一剂量;C组接受一次1.5毫克氟化物(以氟化钠形式)的单一剂量,D组每天接受两次氟化物(以氟化钠形式),总计1.5毫克。未治疗组新生儿脐带血浆氟化物水平(平均值:27.8微克/升)与B、C和D组合补充组(平均值:58.3微克/升)之间存在显著差异。三个补充组之间的平均氟化物水平没有差异。在17名孕妇中,孕周在19至34周之间,测量了母体(平均值:17.11微克/升)和通过脐带穿刺的胎儿中的氟化物水平(平均值:35.64微克/升)。另外4名孕妇接受了1毫克氟化钠的剂量;一小时后,平均脐带氟化物水平为86.5微克/升。这些结果表明,氟化物在妊娠早期就通过胎盘转移,妊娠最后三个月的补充将显著提高脐带血浆氟化物浓度。
Gas chromatography was used to measure the maternal and fetal plasma inorganic fluoride values at term in 91 women. They were assigned to one of four groups: group A were untreated controls; group B received a single daily dose of 1.5 mg of fluoride (as calcium fluoride) during the final trimester of pregnancy; group C was given a single dose of 1.5 mg of fluoride (as sodium fluoride) and group D was given 2 daily doses of fluoride (as sodium fluoride) totaling 1.5 mg. There was a significant difference between the cord plasma fluoride levels of the newborns in the untreated group (mean: 27.8 ug/L) and that of the combined supplemented groups B, C and D (mean: 58.3 ug/L). There was no difference between the average fluoride levels in the three supplemented groups. In 17 women, gestation time between 19 and 34 weeks, fluoride levels were measured in the mother (mean: 17.11 ug/L) and in the foetus by cord tapping (mean: 35.64 ug/L). In 4 other mothers, was given a dose of 1 mg of sodium fluoride; one hour later, mean cord fluoride level was 86.5 ug/L. These results indicate that placental transfer of fluoride occurs early during pregnancy and that supplementation during the final trimester of pregnancy will significantly elevate cord plasma fluoride concentrations.
来源:Hazardous Substances Data Bank (HSDB)

安全信息

  • TSCA:
    Yes
  • 危险品标志:
    Xi
  • 安全说明:
    S26,S37/39
  • 危险类别码:
    R36/37/38
  • WGK Germany:
    1
  • 海关编码:
    28261900
  • 危险品运输编号:
    UN 3288
  • RTECS号:
    EW1760000
  • 包装等级:
    Z01

SDS

SDS:eeed4b6059747a4e033cfe6cf1cb3a7a
查看

制备方法与用途

化学性质

氟化钙是氟石或萤石的主要成分,化学式为CaF₂。它通常以无色立方晶体或白色粉末的形式存在。其相对密度约为3.18,熔点达到1423℃,沸点约2500℃。在水中溶解度极低,在18℃时每100g水仅能溶解0.0016g。氟化钙不溶于丙酮,但可溶于盐酸、氢氟酸、硫酸、硝酸和铵盐溶液。与稀强酸反应几乎无作用,但在热的浓硫酸中生成氢氟酸,并能在铝盐或铁盐(Fe³⁺)溶液中形成络合物。

自然界中的萤石矿物常呈灰、黄、绿、紫等色,有时为无色透明,具有玻璃光泽。它相对脆且有显著的荧光现象,密度在3.01至3.25之间。氟化钙可作为氟源及制备氢氟酸和氟化物原料;广泛应用于玻璃、搪瓷、釉料、冶金等行业。纯净品可用作脱水或脱氢反应催化剂。通过碳酸钙或氢氧化钙与氢氟酸或氟化钠、氟化铵作用制得。

水中溶解度(g/100ml)

每100毫升水中溶解的克数:
30℃时为 8.575×10⁻³

化学性质

氟化钙以等轴晶系存在,晶体多呈立方体、八面体或其组合。颜色多样,包括黄色、绿色、蓝色、紫色或白色及玫瑰色等。不溶于水但能溶于硫酸、磷酸和热盐酸及硼酸、次氯酸。

用途
  • 用于冶金助熔剂、脱水与脱氢催化剂
  • 制备氢氟酸及氟化物
  • 应用于搪瓷、陶器制造,作为冶金熔剂
  • 广泛应用于化工、冶金、玻璃、搪瓷和水泥等行业
  • 制造光学玻璃、光导纤维、搪瓷、医药
  • 用作脱水与脱氢反应的催化剂
生产方法

萤石在中国主要采用地下开采或浅部露天深部相结合的方法,以浅孔留矿法为主。选矿方法通常有手选和浮选两种:

  1. 原矿经手选生产合格精矿,尾矿与贫矿再进行浮选富集。
  2. 利用中和法将氢氧化钙溶于氢氟酸蒸发、过滤、干燥、粉碎制得成品。
    2HF + Ca(OH)₂ → CaF₂ + 2H₂O
  3. 利用钙镁磷肥副产废气用水吸收,然后加石灰乳中和加热化合,再经沉降分离、过滤洗涤、脱水、干燥、粉碎制得产品。
    H₂SiF₆ + 3Ca(OH)₂ → 3CaF₂ + H₂SiO₃ + 3H₂O
类别
  • 毒性:有毒物质,分级为中毒
  • 急性毒性:口服 - 大鼠 LD50: 4250 毫克/公斤;腹腔 - 小鼠 LD50: 2638 毫克/公斤
  • 可燃性危险特性:热分解排出有毒氟化物烟雾
  • 储运特性:库房需通风干燥低温储存
  • 灭火剂:水、二氧化碳、泡沫、干粉
  • 职业标准:TWA 2.5 毫克(氟)/立方米

反应信息

点击查看最新优质反应信息

文献信息

  • Heterocyclic compounds
    申请人:Kuwabara Kenji
    公开号:US20050009892A1
    公开(公告)日:2005-01-13
    The present invention provides a preventive or therapeutic agent for hyperlipidemia, comprising as an active ingredient a heterocyclic compound of the formula [1], or a pharmaceutically acceptable salt thereof: R 1 —Het-D-E  [1] wherein: R 1 is optionally substituted aryl or aromatic heterocyclic group, Het is a divalent aromatic heterocyclic group, D is alkylene, alkenylene, alkynylene, or the like, and E is carboxy, or the like, and novel compounds among the heterocyclic compounds of the formula [1] above, which has blood triglyceride lowering effect, LDL-C lowering effect, and blood glucose lowering effect and blood insulin lowering effect, or HDL-C increasing effect or atherogenic index lowering effect all together, and hence is useful in the prevention or treatment of hyperlipidemia, arteriosclerosis, diabetes mellitus, hypertension, obesity, and the like.
    本发明提供了一种预防或治疗高脂血症的药剂,其包含以下式子[1]的杂环化合物或其药学上可接受的盐作为活性成分:R1—Het-D-E  [1]其中:R1是可选取的取代芳基或芳香杂环基,Het是二价芳香杂环基,D是烷基,烯基,炔基或类似物,E是羧基或类似物,以及式子[1]中的新型化合物,其具有降低血液甘油三酯、降低低密度脂蛋白胆固醇、降低血糖、降低血胰岛素、提高高密度脂蛋白胆固醇或降低致动脉粥样硬化指数的效果,因此在预防或治疗高脂血症、动脉硬化、糖尿病、高血压、肥胖症等方面具有用处。
  • Herbicidal oxabicycloalkane ethers
    申请人:E.I. Du Pont de Nemours and Company
    公开号:US05125954A1
    公开(公告)日:1992-06-30
    The present invention relates to novel bicyclo ether derivatives, to compositions containing them, and to their method of use especially to control the growth of undesired vegetation in rice.
    本发明涉及新型双环醚衍生物,含有它们的组合物以及它们的使用方法,特别是用于控制水稻中不需要的植被生长。
  • Dehalogeno compounds
    申请人:——
    公开号:US20040063754A1
    公开(公告)日:2004-04-01
    3-(1-Aminocycloalkyl)pyrrolidinyl-substituted-6-dehalodeno(hydrogen-substituted)quinolon carboxylic acid derivatives having specific substitunets as represented by the following formula (I), its salts, and hydrates thereof exhibit a broad and potent antibacterial activity on gram-negative and gram-positive bacteria, in particular, resistant bacteria typified by gram-positive cocci, including MRSA, PRSP and VRE. Thus these compounds are usable as drugs. 1
    具有特定取代基的3-(1-氨基环烷基)吡咯烷基取代的6-去卤代(氢取代)喹诺酮羧酸衍生物及其盐和水合物,如下式(I)所示,表现出广谱和强效的抗菌活性,对革兰氏阴性菌和革兰氏阳性菌均有效,特别是对革兰氏阳性球菌等耐药菌,包括MRSA、PRSP和VRE有良好的抗菌活性。因此这些化合物可用作药物。
  • 5-Sulfonyl-1-Piperidinyl Substituted Indole Derivatives as 5-Ht6 Receptor Antagonists for the Treatment of Cns Disorders
    申请人:Ahmed Mahmood
    公开号:US20080318933A1
    公开(公告)日:2008-12-25
    The present invention relates to novel indole derivatives such as compounds of the formula (I): which possess antagonist potency at the 5-HT 6 receptor and the use of such compounds or pharmaceutically acceptable salts or solvates thereof in the treatment of Alzheimer's disease and other CNS disorders.
    本发明涉及新型吲哚衍生物,例如公式(I)的化合物,其具有5-HT6受体的拮抗作用,并且利用这些化合物或其药学上可接受的盐或溶剂在治疗阿尔茨海默病和其他中枢神经系统疾病方面具有用途。
  • Radiation shielding materials and containers incorporating same
    申请人:Mirsky Steven M.
    公开号:US06960311B1
    公开(公告)日:2005-11-01
    An improved radiation shielding material and storage systems for radioactive materials incorporating the same. The PYRolytic Uranium Compound (“PYRUC”) shielding material is preferably formed by heat and/or pressure treatment of a precursor material comprising microspheres of a uranium compound, such as uranium dioxide or uranium carbide, and a suitable binder. The PYRUC shielding material provides improved radiation shielding, thermal characteristic, cost and ease of use in comparison with other shielding materials. The shielding material can be used to form containment systems, container vessels, shielding structures, and containment storage areas, all of which can be used to house radioactive waste. The preferred shielding system is in the form of a container for storage, transportation, and disposal of radioactive waste. In addition, improved methods for preparing uranium dioxide and uranium carbide microspheres for use in the radiation shielding materials are also provided.
    一种改进的辐射屏蔽材料和储存系统,其中包括PYRolytic铀化合物(“PYRUC”)屏蔽材料。该PYRUC屏蔽材料最好是通过热和/或压力处理前体材料形成的,该前体材料包括微球形铀化合物,例如二氧化铀或碳化铀,以及适当的粘合剂。与其他屏蔽材料相比,PYRUC屏蔽材料提供了改进的辐射屏蔽、热特性、成本和易用性。该屏蔽材料可用于形成封闭系统、容器、屏蔽结构和封闭储存区,这些都可用于存放放射性废物。首选的屏蔽系统是用于存储、运输和处理放射性废物的容器。此外,还提供了用于制备用于辐射屏蔽材料的二氧化铀和碳化铀微球的改进方法。
查看更多

表征谱图

  • 氢谱
    1HNMR
  • 质谱
    MS
  • 碳谱
    13CNMR
  • 红外
    IR
  • 拉曼
    Raman
查看更多图谱数据,请前往“摩熵化学”平台
查看更多图谱数据,请前往“摩熵化学”平台
查看更多图谱数据,请前往“摩熵化学”平台
ir
查看更多图谱数据,请前往“摩熵化学”平台
  • 峰位数据
  • 峰位匹配
  • 表征信息
Shift(ppm)
Intensity
查看更多图谱数据,请前往“摩熵化学”平台
Assign
Shift(ppm)
查看更多图谱数据,请前往“摩熵化学”平台
测试频率
样品用量
溶剂
溶剂用量
查看更多图谱数据,请前往“摩熵化学”平台