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铌粉

铌粉用途

1.主要用于生产不锈钢以及制造超导磁铁等。制造特种不锈钢和耐高温合金及超导合金（如Nb₃Sn）。用于电子管和原子能工业。

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铌粉名称

[ CAS 号 ]:
7440-03-1

[ 中文名 ]:
铌

[ 英文名 ]:
niobium

[英文别名 ]:

niobium
MFCD00011126
EINECS 231-113-5

铌粉物理化学性质

[ 密度 ]:
8.57 g/mL at 25 °C(lit.)

[ 沸点 ]:
4742 °C(lit.)

[ 熔点 ]:
2468 °C(lit.)

[ 分子式 ]:
Nb

[ 分子量 ]:
92.90640

[ 精确质量 ]:
92.90640

[ 外观性状 ]:
灰色固体

[ 储存条件 ]:
-20°C

[ 稳定性 ]:
Stable. Incompatible with strong bases, strong oxidizing agents, halogens, oxygen.

铌粉MSDS

详细MSDS(安全技术说明书)

铌粉毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: QT9900000

CHEMICAL NAME :: Niobium

CAS REGISTRY NUMBER :: 7440-03-1

LAST UPDATED :: 199710

DATA ITEMS CITED :: 7

MOLECULAR FORMULA :: Nb

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD - Lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: >10 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 34(12),56,1990

TYPE OF TEST :: LD - Lethal dose

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: >10 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 34(12),56,1990

TYPE OF TEST :: LD - Lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: >10 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 34(12),56,1990

TYPE OF TEST :: LD - Lethal dose

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: >10 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 34(12),56,1990 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 19985 No. of Facilities: 2420 (estimated) No. of Industries: 52 No. of Occupations: 67 No. of Employees: 52588 (estimated) No. of Female Employees: 458 (estimated)

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铌粉安全信息

[ 符号 ]:

GHS02

[ 信号词 ]:
Danger

[ 危害声明 ]:
H250

[ 警示性声明 ]:
P222-P231-P422

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

[ 危害码 (欧洲) ]:
F: Flammable;

[ 风险声明 (欧洲) ]:
R17

[ 安全声明 (欧洲) ]:
S17-S36-S26

[ 危险品运输编码 ]:
UN 1383 4.2/PG 1

[ WGK德国 ]:
-

[ RTECS号 ]:
QT9900000

[ 包装等级 ]:
II

[ 危险类别 ]:
8

[ 海关编码 ]:
8112994000

铌粉制备

1.常与钽共存于铌铁矿、铌钽矿中。可由七氟合铌酸钾用金属钠还原，或由五氧化二铌用钙、铝或氢还原制得。

2.铌的矿物有铌铁矿［(Fe,Mn)(Nb,Ta)2O6,含Nb2O5约65％，Ta2O5约5％］和烧绿石［(Na,Ca)Nb2O5，含Nb2O5 26%～73%,Ta2O5 0.2%～22%］。

铌矿石的分解法有碱熔法和氢氟酸处理法，当用溶剂抽提法分离铌钽时，采用后一种处理方法更好。将矿石溶于氢氟酸中制成含H2NbF7及H2TaF7的水溶液，用异己酮(甲基异丁基甲酮)为溶剂，将铌和钽均抽提于异己酮中，抽提后的溶剂，用稀硫酸逆流洗涤，铌就进入水溶液中而分离出来。

金属铌的制备［75］将五氧化二铌与碳的混合物在真空中加热至2000℃，或者将五氧化二铌与碳化铌的混合物加热到1600～1800℃而制得粗品铌。

可用电弧熔融法或用电子束熔融法进一步提纯铌

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铌粉海关

[ 海关编码 ]: 8112994000

铌粉文献

Enhancement of adhesive strength of hydroxyapatite films on Ti-29Nb-13Ta-4.6Zr by surface morphology control.

J. Mech. Behav. Biomed. Mater. 18 , 232-9, (2013)

Hydroxyapatite (HAp) films were deposited on a β-type titanium alloy, Ti-29Nb-13Ta-4.6Zr (TNTZ), by metal organic chemical vapor deposition (MOCVD) in order to improve its hard-tissue compatibility. T...

Effect of surface treatment on bond strength of Ti-10Ta-10Nb to low-fusing porcelain.

J. Prosthet. Dent. 109(2) , 95-105, (2013)

Ti-10Ta-10Nb alloy is a promising alloy for metal ceramic crowns because of its good corrosion resistance and low cytotoxicity. However, more information is needed on the bond strength between this al...

Dehydration of glycerol over niobia-supported silicotungstic acid catalysts.

J. Nanosci. Nanotechnol. 13(1) , 339-43, (2013)

Liquid-phase dehydration of glycerol to acrolein over nanosized niobia-supported silicotungstic acid catalysts was performed to investigate the effect of the silicotungstic acid loading on the catalyt...

更多文献

铌粉

铌粉用途

铌粉名称

铌粉物理化学性质

铌粉MSDS

详细MSDS(安全技术说明书)

铌粉毒性和生态

CHEMICAL IDENTIFICATION

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

铌粉安全信息

铌粉制备

铌粉海关

铌粉文献

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