흑연, 분말
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흑연, 분말 속성
- 녹는점
- 3652-3697 °C(lit.)
- 끓는 점
- 4830°C
- 밀도
- 2.2 g/mL at 25 °C
- 저장 조건
- no restrictions.
- 용해도
- insoluble in H2O
- 물리적 상태
- 막대 모양
- 색상
- 검은색
- Specific Gravity
- 2.25
- 수소이온지수(pH)
- 5-6 (50g/l, H2O, 20℃)(slurry)
- 비저항
- (Electrical resistivity: surface 0.06 Ω/sq, sheet 2.7 μΩ m)
- 수용성
- 물에 불용성.
- 감도
- Air & Light Sensitive
- Crystal Structure
- Hexagonal
- Merck
- 13,4554
- Dielectric constant
- 12.0(Ambient)
- 노출 한도
- ACGIH: TWA 2 mg/m3
OSHA: TWA 15 mg/m3; TWA 5 mg/m3
NIOSH: IDLH 1250 mg/m3; TWA 2.5 mg/m3
- NIST
- Graphite(7782-42-5)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
위험품 표기 | Xi,Xn | ||
---|---|---|---|
위험 카페고리 넘버 | 36/37-20 | ||
안전지침서 | 26-36-37/39-22 | ||
WGK 독일 | 1 | ||
RTECS 번호 | MD9659600 | ||
TSCA | Yes | ||
HS 번호 | 3801 10 00 | ||
유해 물질 데이터 | 7782-42-5(Hazardous Substances Data) | ||
IDLA | 1,250 mg/m3 | ||
기존화학 물질 | KE-18101 |
흑연, 분말 C화학적 특성, 용도, 생산
용도
분말 야금, 전도성 도료, 연필심, 샤프심 브레이크, 내열도료 윤활유, 카본.화학적 성질
Graphite is crystallized carbon and usually appears as soft, black scales. There are two types of graph ite, natural and artificial (activated). Natural and synthetic graphite may be mixed with each other or contain other additives.출처
Graphite is usually found in metamorphic rocks as veins, lenses, and pockets and as thin laminae disseminated in gneisses, schists, and phyllites. Depending upon the mode of occurrence and origin, it is graded into three forms: flake graphite found in metamorphosed rocks as vein deposits, crystalline graphite found as fissure-filled veins, and cryptocrystalline graphite formed in metamorphosed coal beds. Natural graphite occurs in many parts of the world in fair abundance and it has been used in various applications.In nature, graphite is found usually in association with feldspars, mica, quartz, pyroxene, rutile, pyrites, and apatite. These impurities are associated with vein graphite. The impurities with amorphous graphite are shale, slate, sandstone, quartz, and limestone. Graphite is found in almost every country, but Ceylon, Madagascar, Mexico, western Germany, and Korea all possess particularly plentiful reserves. Major industrial producers of graphite are South Korea, the largest producer in the world, followed by Austria.
용도
High-temperature lubricant, crucible container for handling molten metals such as Mg, Al, Zn, Ga, Sb, and Bi용도
For "lead" pencils, refractory crucibles, stove polish; as pigment, lubricant, graphite cement; for matches and explosives, commutator brushes, anodes, arc-lamp carbons, electroplating; polishing Compounds, rust and needle-paper; coating for cathode ray tubes; moderator in nuclear piles.정의
An allotrope of CARBON. Graphite is a good conductor of heat and electricity. The atoms are arranged in layers which cleave easily and graphite is used as a solid lubricant.일반 설명
A mineral form of the element carbon. Hexagonal crystals or thin leaf-like layers. Steel-gray to black with a metallic luster and a greasy feel. An electrical conductor. Used for high-temperature crucibles, as a lubricant and in "lead" pencils.반응 프로필
GRAPHITE is non-flammable in bulk form, but combustible. A reducing agent. Mixtures of graphite dust and air are explosive when ignited.Reacts violently with very strong oxidizing agents such as fluorine, chlorine dioxide, and potassium peroxide. Almost inert chemically when in bulk form. Keep away from ignition sources and oxidizing agents.건강위험
Pure synthetic graphite acts as an inert or nuisance dust.공업 용도
Graphite is a form of carbon. It was formerlyknown as black lead, and when first used forpencils was called Flanders’ stone. It is a naturalvariety of elemental carbon with a grayishblackcolor and a metallic tinge.Carbon and graphite have been used inindustry for many years, primarily as electrodes,arc carbons, brush carbons, and bearings.In the last decade or so, development ofnew types and emergence of graphite fibers asa promising reinforcement for high-performancecomposites have significantly increasedthe versatility of this family of materials.
잠재적 노출
Natural graphite is used in foundry facings, steel making lubricants, refractories, crucibles, pencil “lead,” paints, pigments, and stove polish. Artificial graphite may be substituted for these uses with the excep tion of clay crucibles; other types of crucibles may be pro duced from artificial graphite. Additionally, it may be used as a high temperature lubricant or for electrodes. It is uti lized in the electrical industry in electrodes, brushes, con tacts, and electronic tube rectifier elements; as a constituent in lubricating oils and greases; to treat friction elements, such as brake linings; to prevent molds from sticking together; and in moderators in nuclear reactors. In addition, concerns have been expressed about synthetic graphite in fibrous form. Those exposed are involved in production of graphite fibers from pitch or acrylonitrile fibers and the manufacture and use of composites of plastics, metals, or ceramics reinforced with graphite fibers.운송 방법
UN1362 Carbon, activated, Hazard Class: 4.2; Labels: 4.2-Spontaneously combustible material, International.Purification Methods
Treat graphite with hot 1:1 HCl. Then filter, wash and the dried powdered is heated in an evacuated quartz tube at 1000o until a high vacuum is obtained. Cool this and store it in an atmosphere of helium [Craig et al. J Phys Chem 60 1225 1956].비 호환성
Graphite is a strong reducing agent and reacts violently with oxidizers, such as fluorine, chlorine trifluoride, and potassium peroxide. Forms an explosive mixture with air. May be spontaneously combustible in air.폐기물 처리
Do not incinerate. Carbon (graphite) fibers are difficult to dispose of by incineration. Waste fibers should be packaged and disposed of in a land fill authorized for the disposal of special wastes of this nature, or as otherwise may be required by law.흑연, 분말 준비 용품 및 원자재
원자재
GRAPHITE ELECTRODES
Adhesive
Natural graphite
천연아스팔탐
경 무기 기름
Oil agent
CARBON FIBER
염산
Aqueous agent
불산
탄산나트륨(경회)
준비 용품
renewable alkaline zinc-manganese dioxide battery
button type alkaline zinc-manganese dioxide battery
polyacrylonitrile pyrolysis product
Nickel-hydrogen battery
ammonia synthesis Ru catalyst
실리콘 카바이드
수산화칼륨
이소부틸아세토페논
low-pressure carbinol synthesis catalyst
carbinol synthesis catalyst
삼산화안티모니
naphtha steam reforming catalysts
primary natural gas steam reforming catalysts
overseas high-pressure carbinol synthesis catalyst
2,4-디클로로페놀
실리콘 분
염화 아연
나트륨3-4-이소부틸페닐)-2,3-에폭시부티레이트
round type alkaline zinc-manganese dioxide battery
polyimide pyrolysis product
medium temperature Shift catalysts
탄화 붕소
칼슘
CARBON FIBER
lithium-ion battery
Sodium Monofluorophosphate
Colloidal graphite lubricating oil
medium-pressure carbinol synthesis catalyst
소다의 염산
Polytetrafluoroethylene products
low temperature CO shift catalysts
secondary hydrocarbon steam reforming catalysts
graphitic conductive fiber
medium(high)temperature Shift catalysts
benzene series organic effluent gas purifying catalyst
카비릴
흑연, 분말 공급 업체
글로벌( 395)공급 업체
공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
---|---|---|---|---|---|
Hebei Yanxi Chemical Co., Ltd. | +8617531190177 |
peter@yan-xi.com | China | 6011 | 58 |
Henan Bao Enluo International TradeCo.,LTD | +86-17331933971 +86-17331933971 |
deasea125996@gmail.com | China | 2503 | 58 |
Yujiang Chemical (Shandong) Co.,Ltd. | +86-17736087130 +86-18633844644 |
catherine@yjchem.com.cn | China | 789 | 58 |
Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 |
info@tianfuchem.com | China | 21687 | 55 |
Shanghai Zheyan Biotech Co., Ltd. | 18017610038 |
zheyansh@163.com | CHINA | 3620 | 58 |
Hubei Jusheng Technology Co.,Ltd. | 18871490254 |
linda@hubeijusheng.com | CHINA | 28180 | 58 |
Xiamen AmoyChem Co., Ltd | +86-592-6051114 +8618959220845 |
sales@amoychem.com | China | 6387 | 58 |
Hubei xin bonus chemical co. LTD | 86-13657291602 |
linda@hubeijusheng.com | CHINA | 22968 | 58 |
Chongqing Chemdad Co., Ltd | +86-023-6139-8061 +86-86-13650506873 |
sales@chemdad.com | China | 39916 | 58 |
career henan chemical co | +86-0371-86658258 15093356674; |
factory@coreychem.com | China | 29826 | 58 |
흑연, 분말 관련 검색:
숯, 활성화합물 (코코아넛) 카본블랙 에틸-2(에틸(3-)-24-펜탄티온 2,4-펜탄디온 염화 코발트 (폴리(탄소 모노플루오리드)) 갈릭산 팔라듐 안티몬 펜타염화물 안티몬 펜타플루오르화 흑연, 분말
antimony(v) fluoride compound with graphite, 1:1 mixture,ANTIMONY PENTAFLUORIDE / GRAPHITE,ANTIMONY PENTAFLUORIDE COMPOUND WITH GRAPHITE (50/50)
Copperchromite,bariumpromoted(62-64%Cr2CuO4,22-24%CuO,6%BaO,0-4%Graphite,1%CrO3,1%Cr2O3),62-64%Cr2CuO4,22-24%CuO,6%BaO,0-4%graphite1%CrO31%Cr2O3CrO31%Cr2O3
Graphite equipment
Graphite heat exchanger
Graphite electrode, crater-drillpoint/undercut, 4.57mm dia, 38.10mm length, volume 0.040cc, 99.9995% (metals basis)
Graphite Gas Analysis Crucible: Ht (mm), 24.2: ID (mm), 9.2: OD (mm), 12.6: Tip Dia (mm), 4.75, post-round bottom
Graphite electrode, crater-drillpoint/undercut, 6.15mm dia, 38.10mm length, volume 0.072cc, 99.9995% (metals basis)