몰리브덴 이규소화물

한글명:몰리브덴 이규소화물

카스 번호12136-78-6

상품명:Molybdenum silicide

CBNumberCB3263947

분자식MoSi2

포뮬러 무게152.11

MOL 파일12136-78-6.mol

동의어(한글)

몰리브덴이규소화물

이규소화몰리브데넘(이규소화몰리브덴)

이규소화몰리브데넘(이규소화몰리브덴)(MOLYBDENUMDISILICIDE)

화학적 성질

녹는점	1930°C
밀도	6.31 g/mL at 25 °C(lit.)
용해도	insoluble in H2O; soluble in HF
물리적 상태	가루
색상	짙은 회색
Specific Gravity	6.31
비저항	21.5 (ρ/μΩ.cm)
수용성	산과 왕수에는 용해되지 않지만 HF와 HNO에는 용해됩니다.{3}질산과 불화수소산에는 용해됩니다. 대부분의 산은 물에 용해되지 않습니다.
Crystal Structure	Tetragonal
노출 한도	ACGIH: TWA 10 mg/m3; TWA 3 mg/m3 NIOSH: IDLH 5000 mg/m3
EPA	Molybdenum silicide (MoSi2) (12136-78-6)

위험 및 안전 성명

위험품 표기

위험 카페고리 넘버

20/21/22

안전지침서

WGK 독일

TSCA

Yes

NFPA 704:

	0
0		0

그림문자(GHS)

몰리브덴 이규소화물 화학적 특성, 용도, 생산

화학적 성질
Molybdenum silicide is dark-gray, crystalline powder. Not affected by air upto 1648°C. Not attacked by most inorganic acidsincluding aqua regia, but very soluble in hydrofluo-ric and nitric acids. Has high stress-rupture strength.
물리적 성질
The compound is thermally stable in air up to 1000°C. Corrosion resistant to molten metals such as Zn, Pd, Ag, Bi, and Rb. Corroded by liquid metals Mg, Al, Si, V, Cr, Mn, Fe, Ni, Cu, Mo, and Ce.
용도
MOLYBDENUM SILICIDE can be considered as an electrically conducting ceramic with primary use in heating elements operating at temperatures above 1,500℃ in air. It is also considered as a material for very high temperature structural applications.
정의
MOLYBDENUM SILICIDE is A cermet.
일반 설명
This product has been enhanced for energy efficiency.
위험도
MOLYBDENUM SILICIDE is Toxic material.
공업 용도
High-temperature silicides are a new class of materials with potential applications in the temperature range 1200 to 1600 C.The silicide that seems most promising is molybdenum disilicide (MoSi₂) because of its high melting temperature (2200 C) and excellent oxidation resistance. It has a tetragonal crystal structure. A major problem is its absence of ductility at temperatures up to 1000 C. It also has poor high-temperature strength due to the presence of a grain boundary silicon-rich phase that may become viscous at very high temperatures. Recent research has shown that this problem may be solved by the addition of carbon to the material.

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