niobium

Modify Date: 2025-08-21 21:55:53

niobium structure	Common Name	niobium
	CAS Number	7440-03-1	Molecular Weight	92.90640
	Density	8.57 g/mL at 25 °C(lit.)	Boiling Point	4742 °C(lit.)
	Molecular Formula	Nb	Melting Point	2468 °C(lit.)
	MSDS	Chinese USA	Flash Point	N/A
	Symbol	GHS02	Signal Word	Danger

Name	niobium atom
Synonym	More Synonyms

Density	8.57 g/mL at 25 °C(lit.)
Boiling Point	4742 °C(lit.)
Melting Point	2468 °C(lit.)
Molecular Formula	Nb
Molecular Weight	92.90640
Exact Mass	92.90640
Storage condition	-20°C
Stability	Stable. Incompatible with strong bases, strong oxidizing agents, halogens, oxygen.

niobium MSDS(Chinese)

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)

Symbol	GHS02
Signal Word	Danger
Hazard Statements	H250
Precautionary Statements	P222-P231-P422
Personal Protective Equipment	Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
Hazard Codes	F: Flammable;
Risk Phrases	R17
Safety Phrases	S17-S36-S26
RIDADR	UN 1383 4.2/PG 1
WGK Germany	-
RTECS	QT9900000
Packaging Group	II
Hazard Class	8
HS Code	8112994000

HS Code	8112994000

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...

niobium

MFCD00011126

EINECS 231-113-5