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베릴륨 산화물

베릴륨 산화물
베릴륨 산화물 구조식 이미지
카스 번호:
1304-56-9
한글명:
베릴륨 산화물
동의어(한글):
베릴륨산화물;베릴륨산화물
상품명:
BERYLLIUM OXIDE
동의어(영문):
Berylla;Glucina;Beryllia;Thermalox;bromellete;BroMellite;thermalox995;BERYLLIUM OXIDE;naturalbromellite;Beryllium monoxide
CBNumber:
CB3118746
분자식:
BeO
포뮬러 무게:
25.01
MOL 파일:
1304-56-9.mol

베릴륨 산화물 속성

녹는점
2575°C
끓는 점
4300°C
밀도
3.01 g/mL at 25 °C(lit.)
굴절률
1.733
인화점
4300°C
물리적 상태
Powder
Specific Gravity
3.01
색상
white
수용성
Insoluble in water. Slowly soluble in concentrated acids, alkali hydroxides
Merck
14,1172
안정성
Stable.
CAS 데이터베이스
1304-56-9(CAS DataBase Reference)
안전
  • 위험 및 안전 성명
  • 위험 및 사전주의 사항 (GHS)
위험품 표기 T+
위험 카페고리 넘버 49-25-26-36/37/38-43-48/23
안전지침서 53-45
유엔번호(UN No.) UN 1566 6.1/PG 2
WGK 독일 1
RTECS 번호 DS4025000
TSCA Yes
위험 등급 6.1
포장분류 II
그림문자(GHS):
신호 어: Danger
유해·위험 문구:
암호 유해·위험 문구 위험 등급 범주 신호 어 그림 문자 P- 코드
H301 삼키면 유독함 급성 독성 물질 - 경구 구분 3 위험 P264, P270, P301+P310, P321, P330,P405, P501
H315 피부에 자극을 일으킴 피부부식성 또는 자극성물질 구분 2 경고 P264, P280, P302+P352, P321,P332+P313, P362
H317 알레르기성 피부 반응을 일으킬 수 있음 피부 과민성 물질 구분 1 경고 P261, P272, P280, P302+P352,P333+P313, P321, P363, P501
H319 눈에 심한 자극을 일으킴 심한 눈 손상 또는 자극성 물질 구분 2A 경고 P264, P280, P305+P351+P338,P337+P313P
H330 흡입하면 치명적임 급성 독성 물질 흡입 구분 1, 2 위험 P260, P271, P284, P304+P340, P310,P320, P403+P233, P405, P501
H335 호흡 자극성을 일으킬 수 있음 특정 표적장기 독성 - 1회 노출;호흡기계 자극 구분 3 경고
H350 암을 일으킬 수 있음 (노출되어도 암을 일으키지 않는다는 결정적인 증거가 있는 노출경로가 있다면 노출경로 기재) 발암성 물질 구분 1A, 1B 위험
H372 장기간 또는 반복 노출되면 장기(또는, 영향을 받은 알려진 모든 장기를 명시)에 손상을 일으킴 특정 표적장기 독성 - 반복 노출 구분 1 위험 P260, P264, P270, P314, P501
예방조치문구:
P201 사용 전 취급 설명서를 확보하시오.
P260 분진·흄·가스·미스트·증기·...·스프레이를 흡입하지 마시오.
P280 보호장갑/보호의/보안경/안면보호구를 착용하시오.
P284 호흡 보호구를 착용하시오.
P320 긴급히 (…) 처치를 하시오.
P330 입을 씻어내시오.
P301+P310 삼켰다면 즉시 의료기관(의사)의 진찰을 받으시오.
P304+P340 흡입하면 신선한 공기가 있는 곳으로 옮기고 호흡하기 쉬운 자세로 안정을 취하시오.
P305+P351+P338 눈에 묻으면 몇 분간 물로 조심해서 씻으시오. 가능하면 콘택트렌즈를 제거하시오. 계속 씻으시오.
P405 밀봉하여 저장하시오.

베릴륨 산화물 C화학적 특성, 용도, 생산

개요

Beryllium oxide (BeO) is formed by the ignition of beryllium metal in an oxygen atmosphere. The resulting solid is colourless and insoluble in water.

화학적 성질

solid

물리적 성질

Beryllium oxide (BeO) is a white crystalline oxide. It occurs in nature as the mineral “Bromellite”. Historically, beryllium oxide was called glucina or glucinium oxide. It is an electrical insulator and its thermal conductivity is such that it is higher than any other nonmetal except diamond, and actually exceeds that of some metals. Its high melting point leads to its use as a refractory.

용도

manufacture of beryllium oxide ceramics, glass; in nuclear reactor fuels and moderators; catalyst for organic reactions.

용도

Beryllium oxide is used in many high-performance semiconductor parts for applications such as radio equipment because of its good thermal conductivity while also being a good electrical insulator. It is used as a filler in some thermal interface materials such as “THERMAL GREASE”.Some high-powered semiconductor devices have used beryllium oxide ceramic between the silicon chip and the metal mounting base of the package in order to achieve a higher degree of thermal conductivity than for a similar construction made with Al2O3. It is also used as a structural ceramic for high-performance microwave devices, vacuum tubes, magnetrons and gas lasers. Beryllium oxide (BeO) is a space age technical ceramic material that offers a combination of desirable properties not found in any other material.

정의

ChEBI: A beryllium molecular entity consisting of beryllium (+2 oxidation state) and oxide in the ratio 1:1. In the solid state, BeO adopts the hexagonal wurtzite structure form while in the vapour phase, it is present as discrete diatomic covalent molecules.

제조 방법

Beryllium oxide can be prepared by calcining beryllium carbonate, dehydrating the hydroxide or igniting the metal with oxygen gas, as shown in the following reactions:
BeCO3→BeO+CO2
Be(OH)2→BeO+H2O
2Be+O2→2BeO
Igniting beryllium in air

일반 설명

Odorless white solid. Sinks in water.

공기와 물의 반응

The amount of heat generated by hydrolysis may be large.

반응 프로필

BERYLLIUM OXIDE is incompatible with the following: Acids, caustics, chlorinated hydrocarbons, oxidizers, molten lithium, magnesium .

위험도

Highly toxic by inhalation. Keep container tightly closed and flush out after use.

건강위험

Any dramatic, unexplained weight loss should be considered as possible first indication of beryllium disease. Other symptoms include anorexia, fatigue, weakness, malaise. Inhalation causes pneumonitis, nasopharyngitis, tracheobronchitis, dyspnea, chronic cough. Contact with dust causes conjunctival inflammation of eyes and irritation of skin.

화재위험

Special Hazards of Combustion Products: Toxic BERYLLIUM OXIDE fume may form in fire.

공업 용도

A colorless to white crystalline powder of the composition beryllium oxide, also called beryllia. It has a specific gravity of 3.025, a high melting point, about 2585 C, and a Knoop hardness of 2000. It is used for polishing hard metals and for making hot-pressed ceramic parts. Its high heat resistance and thermal conductivity make it useful for crucibles, and its high dielectric strength makes it suitable for high-frequency insulators. Single-crystal beryllia fibers, or whiskers, have a tensile strength above 6800 MPa.
Beryllium oxide is tapped for nuclear reactor service because of its refractoriness, high thermal conductivity, and ability to moderate (slow down) fast neutrons. The thermal neutrons that result are more efficient in causing fusion of uranium- 235. Nuclear industry uses for beryllia include reflectors and the matrix material for fuel elements. When mixed with suitable nuclear poisons, beryllium oxide may be a new candidate for shielding and control rod assembly applications.

베릴륨 산화물 준비 용품 및 원자재

원자재

준비 용품


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