硼化镧

  • 基本信息
  • 制备方法及用途
  • 物化性质
  • 安全信息
  • 毒理性
  • MSDS
  • 结构与计算化学

硼化镧 基本信息

中文名称:
硼化镧 
中文别名:
硼化镧;
calcium hexaboride;
Calcium boride;
Boric acid (H2B4O7), diammonium salt;
Diammonium borate ((NH4)2B4O7);
Ammonium boron oxide ((NH4)2B4O7);
diammonium tetraborate;
boranolate, oxo-, ammonium salt;
Trichlorobencenos [Spanish];
*Chlorobenzens;
Trichlorobenzene;
MuscovitepotassiumMICA;
Muscovite;
Transferrin, Holo, Bovine Plasma;
Transferrin, Holo, TC Grade, Pyrogen-Free, Human Plasma;
transferrin from bovine serum;
Transferrin;
Copper o 
英文名称:
Lanthanum boride(LaB6), (OC-6-11)-
英文别名:
Lanthanum boride (LaB6), (OC-6-11)-;
Lanthanum boride (LaB6) (6CI,8CI);
Alfa 43100;
KHDS 6;
KHF 7;
KHGS 02;
LaB6-F;
Lanthanum boride;
Lanthanum hexaboride;
Lanthanum hexaboride (LaB6) 
CAS No.:
12008-21-8
分 子 式:
B6La
分 子 量:
203.77
精确分子量:
204.96219
PSA:
0.00000
MDL:
MFCD00151350
EINECS:
234-531-6
InChI:
InChI=1/B6.La/c1-2-5(1)3-4(5)6(1,2)3;/q-2;+2
分子结构式:
SDS:
查看

硼化镧 制备方法及用途

制备方法

按化学计量混合搅拌少量的氧化镧、硼和炭黑粉末(总共约1g)直至均匀,把反应物压成薄片[1in(1in=0 0254m)×1/2in×1/16in]。薄片装入1.5in高、直径1.7in的石墨坩埚中。后者又放入更大的石墨坩埚中(4in高、直径),通入氢气,在1500℃加热2h或在1800℃加热1h。

合成制备方法

按化学计量混合搅拌少量的氧化镧、硼和炭黑粉末(总共约1g)直至均匀,把反应物压成薄片[1in(1in=00254m)×1/2in×1/16in]。薄片装入1.5in高、直径1.7in的石墨坩埚中。后者又放入更大的石墨坩埚中(4in高、直径),通入氢气,在1500℃加热2h或在1800℃加热1h。

用途简介

用途十分广泛,已成功应用于雷达航空航天、电子工业、仪表仪器、医疗器械、家电冶金、环保等二十余个军事和高科技领域。其系列产品主要包括三种粉末、多晶体、单晶体。特别是六硼化镧单晶,是制作大功率电子管、磁控器、电子束、离子束、加速器阴极的最佳材料。

用途

用途十分广泛,已成功应用于雷达航空航天、电子工业、仪表仪器、医疗器械、家电冶金、环保等二十余个军事和高科技领域。其系列产品主要包括三种粉末、多晶体、单晶体。特别是六硼化镧单晶,是制作大功率电子管、磁控器、电子束、离子束、加速器阴极的最佳材料。

硼化镧 物化性质

密度:
2.61 g/mL at 25 °C(lit.)
熔点:
2530°C
存储条件/存储方法:

密封于阴凉干燥处。

 

 

稳定性相关:

遵照规格使用和储存则不会分解。立方晶系,CaB6型结构,空间群Pm3m,a=4.1561A·(4.1571)(1A·=0.1nm,下同)

其它信息:

1.       性状:蓝至紫色,紫色粉末。

2.       密度(g/mL,20℃):4.76

3.       相对蒸汽密度(g/mL,空气=1):无可用

4.       熔点(ºC):2715

5.       沸点(ºC,常压):无可用

6.       沸点(ºC,5.2kPa): 无可用

7.       折射率: 无可用

8.       闪点(ºC): 无可用

9.       比旋光度(º):无可用

10.    自燃点或引燃温度(ºC):无可用

11.    蒸气压(kPa,25ºC):无可用

12.    饱和蒸气压(kPa,60ºC):无可用

13.    燃烧热(KJ/mol):无可用

14.    临界温度(ºC):无可用

15.    临界压力(KPa):无可用

16.    油水(辛醇/水)分配系数的对数值:无可用

17.    爆炸上限(%,V/V):无可用

18.    爆炸下限(%,V/V): 无可用

19.    溶解性:难溶于水、盐酸

硼化镧 安全信息

WGK_Germany:
3
德国有关水污染物质的分类清单

硼化镧 毒理性

生态数据:

通常对水是不危害的,若无政府许可,勿将材料排入周围环境。

硼化镧 MSDS

Name: Lanthanum hexaboride 99% Material Safety Data Sheet
Synonym: Lanthanum borid
CAS: 12008-21-8
Section 1 - Chemical Product   MSDS Name:Lanthanum hexaboride 99% Material Safety Data Sheet
Synonym:Lanthanum borid

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
12008-21-8 Lanthanum hexaboride, 99% 99% 234-531-6
Hazard Symbols: None Listed.
Risk Phrases: None Listed.

Section 3 - HAZARDS IDENTIFICATION
  EMERGENCY OVERVIEW
The toxicological properties of this material have not been fully investigated.
Potential Health Effects
Eye:
May cause eye irritation.
Skin:
May cause skin irritation.
Ingestion:
May cause irritation of the digestive tract. The toxicological properties of this substance have not been fully investigated.
Inhalation:
May cause respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.
Chronic:
No information found.

Section 4 - FIRST AID MEASURES
  Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion:
If victim is conscious and alert, give 2-4 cupfuls of milk or water.
Get medical aid immediately.
Inhalation:
Get medical aid immediately. Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Notes to Physician:

Section 5 - FIRE FIGHTING MEASURES
  General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear.
Extinguishing Media:
Use water spray, dry chemical, carbon dioxide, or chemical foam.

Section 6 - ACCIDENTAL RELEASE MEASURES
  General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal container.

Section 7 - HANDLING and STORAGE
  Handling:
Wash thoroughly after handling. Use with adequate ventilation. Avoid contact with skin and eyes. Avoid ingestion and inhalation.
Storage:
Store in a cool, dry place. Store in a tightly closed container.

Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
  Engineering Controls:
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use process enclosure, local exhaust ventilation, or other engineering controls to control airborne levels.
Exposure Limits CAS# 12008-21-8: Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
 
Physical State: Solid
Color: not available
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 2210 deg C
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water: insoluble
Specific Gravity/Density: 2.6100g/cm3
Molecular Formula: B6La
Molecular Weight: 203.78

Section 10 - STABILITY AND REACTIVITY
  Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
None reported.
Incompatibilities with Other Materials:
Strong oxidizing agents.
Hazardous Decomposition Products:
None.
Hazardous Polymerization: Has not been reported.

Section 11 - TOXICOLOGICAL INFORMATION
  RTECS#:
CAS# 12008-21-8 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
Lanthanum hexaboride, 99% - Not listed by ACGIH, IARC, or NTP.

Section 12 - ECOLOGICAL INFORMATION
 

Section 13 - DISPOSAL CONSIDERATIONS
  Dispose of in a manner consistent with federal, state, and local regulations.

Section 14 - TRANSPORT INFORMATION
 
IATA
Not regulated as a hazardous material.
IMO
Not regulated as a hazardous material.
RID/ADR
Not regulated as a hazardous material.

Section 15 - REGULATORY INFORMATION
 
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: Not available.
Risk Phrases:
Safety Phrases:
S 24/25 Avoid contact with skin and eyes.
WGK (Water Danger/Protection)
CAS# 12008-21-8: No information available.
Canada
CAS# 12008-21-8 is listed on Canada's DSL List.
CAS# 12008-21-8 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 12008-21-8 is listed on the TSCA inventory.


SECTION 16 - ADDITIONAL INFORMATION
N/A

硼化镧 分子结构与计算化学数据

分子结构数据

1、摩尔折射率:无可用

2、   摩尔体积(cm3/mol): 无可用

3、   等张比容(90.2K):无可用

4、   表面张力(dyne/cm):无可用

计算化学数据

1.疏水参数计算参考值(XlogP):无

2.氢键供体数量:0

3.氢键受体数量:2

4.可旋转化学键数量:0

5.互变异构体数量:无

6.拓扑分子极性表面积0

7.重原子数量:7

8.表面电荷:-2

9.复杂度:132

10.同位素原子数量:0

11.确定原子立构中心数量:0

12.不确定原子立构中心数量:0

13.确定化学键立构中心数量:0

14.不确定化学键立构中心数量:0

15.共价键单元数量:2

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