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铪粉

铪粉用途

主要用于制作原子反应堆的控制棒，也用作消气剂及硬质合金的添加剂。

铪粉名称

[ CAS 号 ]:
7440-58-6

[ 中文名 ]:
铪

[ 英文名 ]:
Hydrofluoric acid

[中文别名 ]:

[英文别名 ]:

Fluoride hydrogen
HAFNIUM
MFCD00011032
HafniumpowderZr
Celtium
hafniumpowder,dry
hafniumpowder
HafniumZrwire
Hydrofluoric acid
HAFNIUM METAL

铪粉物理化学性质

[ 密度 ]:
13,31 g/cm3

[ 沸点 ]:
19.5±9.0 °C at 760 mmHg

[ 熔点 ]:
2227 °C(lit.)

[ 分子式 ]:
Hf

[ 分子量 ]:
178.490

[ 精确质量 ]:
179.946503

[ 外观性状 ]:
金属丝

[ 蒸汽压 ]:
922.1±0.0 mmHg at 25°C

[ 储存条件 ]:
库房通风低温干燥,与氧化剂、酸类分开存放

[ 稳定性 ]:
Stable. Incompatible with oxygen, sulfur, strong oxidizing agents, halogens, phosphorus, strong acids. Highly flammable.

铪粉MSDS

详细MSDS(安全技术说明书)

铪粉毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: MG4600000

CHEMICAL NAME :: Hafnium

CAS REGISTRY NUMBER :: 7440-58-6

LAST UPDATED :: 199712

DATA ITEMS CITED :: 23

MOLECULAR FORMULA :: Hf

铪粉安全信息

[ 符号 ]:

GHS02

[ 信号词 ]:
Danger

[ 危害声明 ]:
H228

[ 警示性声明 ]:
P210

[ 个人防护装备 ]:
Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter

[ 危害码 (欧洲) ]:
T+:Verytoxic;

[ 风险声明 (欧洲) ]:
R26/27/28;R35

[ 安全声明 (欧洲) ]:
S9-S16-S26-S27-S33-S36-S36/37/39

[ 危险品运输编码 ]:
UN 3178 4.1/PG 3

[ WGK德国 ]:
-

[ RTECS号 ]:
MG4600000

[ 包装等级 ]:
III

[ 危险类别 ]:
8

铪粉制备

1.可由镁还原四氯化铪或热分解四碘化铪制取。也可以HfCl₄和K₂HfF₆为原料。在NaCl-KCl-HfCl₄(或K₂HfF₆)熔体中电解制取，其工艺过程与锆的电解制取相近。

2.铪多与锆共存，没有单独存在的铪原料。目前铪的制造原料是在制造锆的工艺流程中分离出来的粗氧化铪。用离子交换树脂的方法提取氧化铪，随后利用与锆相同的方法从这种氧化铪中制取金属铪。

铪粉文献

182Hf-182W age dating of a 26Al-poor inclusion and implications for the origin of short-lived radioisotopes in the early Solar System.

Proc. Natl. Acad. Sci. U. S. A. 110(22) , 8819-23, (2013)

Refractory inclusions [calcium-aluminum-rich inclusions, (CAIs)] represent the oldest Solar System solids and provide information regarding the formation of the Sun and its protoplanetary disk. CAIs c...

Dispersion engineering of thick high-Q silicon nitride ring-resonators via atomic layer deposition.

Opt. Express 20(25) , 27661-9, (2012)

We demonstrate dispersion engineering of integrated silicon nitride based ring resonators through conformal coating with hafnium dioxide deposited on top of the structures via atomic layer deposition....

Concentration dependence in kinetic arrest of the first-order magnetic transition in Ta doped HfFe2.

J. Phys. Condens. Matter 25(6) , 066011, (2013)

Magnetic behavior of the pseudo-binary alloy Hf(1-x)Ta(x)Fe(2) has been studied, for which the zero-field ferromagnetic (FM) to antiferromagnetic (AFM) transition temperature is tuned near to T = 0 K....

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铪粉