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탄화칼슘

탄화칼슘
탄화칼슘 구조식 이미지
카스 번호:
75-20-7
한글명:
탄화칼슘
동의어(한글):
칼슘카바이드,탄화석회,카바이드;탄화칼슘;탄화칼슘
상품명:
Calcium carbide
동의어(영문):
carbide;ELECTROLITE;Acetylenogen;Calciumcarbid;carburocalcico;carburo calcic;ethyne,calciuM;CALCIUM CARBIDE;Acetylenestones;calciumdicarbide
CBNumber:
CB5854217
분자식:
C2Ca
포뮬러 무게:
64.1
MOL 파일:
75-20-7.mol

탄화칼슘 속성

녹는점
447°C
끓는 점
2300°C
밀도
2.22 g/mL at 25 °C(lit.)
저장 조건
water-free area
물리적 상태
pieces
색상
Gray-black
Specific Gravity
2.22
수용성
hydrolyses
감도
Moisture Sensitive
Merck
14,1656
BRN
3909011
안정성
Stability Reacts violently with water liberating highly flammable gas (acetylene). Do not use water if this material is involved in a fire. Incompatible with moisture, water, strong oxidizing agents, alcohols, hydrogen chloride, magnesium.
EPA
Calcium carbide (Ca(C2))(75-20-7)
안전
  • 위험 및 안전 성명
  • 위험 및 사전주의 사항 (GHS)
위험품 표기 F
위험 카페고리 넘버 15-41-37/38
안전지침서 8-43-43A-39-26
유엔번호(UN No.) UN 1402 4.3/PG 2
WGK 독일 1
F 고인화성물질 10-21
TSCA Yes
위험 등급 4.3
포장분류 II
HS 번호 28491000
유해 물질 데이터 75-20-7(Hazardous Substances Data)
그림문자(GHS):
신호 어: Danger
유해·위험 문구:
암호 유해·위험 문구 위험 등급 범주 신호 어 그림 문자 P- 코드
H260 물과 접촉시 자연 발화성 인화성 가스를 발생시킴 물반응성 물질 및 혼합물 구분 1 위험 P223, P231+P232, P280, P335+ P334,P370+P378, P402+P404, P501
H261 물과 접촉시 인화성가스를 발생시킴 물반응성 물질 및 혼합물 구분 2
구분 3
위험
경고
P231+P232, P280, P370+P378,P402+P404, P501
H315 피부에 자극을 일으킴 피부부식성 또는 자극성물질 구분 2 경고 P264, P280, P302+P352, P321,P332+P313, P362
H318 눈에 심한 손상을 일으킴 심한 눈 손상 또는 자극성 물질 구분 1 위험 P280, P305+P351+P338, P310
H335 호흡 자극성을 일으킬 수 있음 특정 표적장기 독성 - 1회 노출;호흡기계 자극 구분 3 경고
예방조치문구:
P223 물과 접촉하지 마시오.
P261 분진·흄·가스·미스트·증기·...·스프레이의 흡입을 피하시오.
P280 보호장갑/보호의/보안경/안면보호구를 착용하시오.
P231+P232 불활성 기체 하에서 취급하고, 습기를 방지하시오.
P305+P351+P338 눈에 묻으면 몇 분간 물로 조심해서 씻으시오. 가능하면 콘택트렌즈를 제거하시오. 계속 씻으시오.
P370+P378 화재 시 불을 끄기 위해 (Section 5. 폭발, 화재시 대처방법의 적절한 소화제)을(를) 사용하시오.
P405 밀봉하여 저장하시오.
P422 적절한 물질을(를) 충진하여 보관하시오.

탄화칼슘 C화학적 특성, 용도, 생산

화학적 성질

grey or black solid with a garlic-like odour

용도

used as desulfurizer and dehydrant of steel and for cutting and welding metals.?in organic synthesis industry, Acetylene obtanied from calcium carbide is raw material to make ethylene, chloroprene rubber, calcium cyanamide, acetic acd, acetaldehydr, ethylacetate, cyanide acetate, dicyandiamide, acetone, octanol, trichloride ethylene etc

용도

Generating acetylene gas for lighting purposes (1 kg of carbide yields ~300 liters acetylene); as reducing agent, e.g., for direct reduction of copper sulfide to metallic copper; signal fires for marine service; manufacture of calcium, iron, alloys, lampblack, cyanamide; welding and cutting metals.

용도

It is used to produce acetylene gas in numerousapplications. Also, it is used as a reducingagent to produce metals from their salts.

일반 설명

Grayish-black irregular lump solid. Used to make acetylene and in steel manufacture.

공기와 물의 반응

Reacts rapidly with water to generate the flammable gas acetylene and the base calcium hydroxide. Enough heat may be generated to ignite the gas [Jones, G.W. BM Report Invest. 3755 1944].

반응 프로필

Calcium carbide is a reducing agent. May react vigorously with oxidizing materials. The powdered mixture of the acetylide and iron oxide and iron chloride burns violently upon ignition, producing molten iron. Calcium carbide incandesces with chlorine, bromine, or iodine at 245, 350, or 305°C., respectively, [Mellor, 1946, Vol. 5, 862]. The carbide burns incandescently when mixed and heated with lead difluoride, magnesium, hydrogen chloride, and tin (II) chloride, [Mellor, 1946, 1940, 1946, and 1941], respectively. Interaction of Calcium carbide with methanol to give calcium methoxide is vigorous , but subject to an induction period of variable length. Once reaction starts, evolution of acetylene gas is very rapid, unpublished observations [Bretherick 1995]. Mixing Calcium carbide with silver nitrate solutions forms silver acetylide, a highly sensitive explosive. Copper salt solutions would behave similarly, [Photogr. Sci. Eng., 1966, 10, 334]. The mixture of Calcium carbide and sodium peroxide is explosive, as is Calcium carbide and perchloryl fluoride as gases at 100-300°C.

위험도

Forms flammable and explosive gas and corrosive solid with moisture.

건강위험

It is a corrosive solid. Because it is highlywater-reactive, skin contact can cause burn.

건강위험

Eye and skin irritation

화재위험

Behavior in Fire: If wet by water, highly flammable acetylene gas is formed.

Safety Profile

Reaction on contact with moisture forms explosive acetylene gas. Flammable on contact with moisture, acid or acid fumes; evolves heat or flammable vapors. Moderate explosion hazard. Incandescent reaction with Cl2 (245℃), Brz (350℃), IS (305℃), HCl gas + heat, PbF2, Mg + heat. Incompatible with Se, (KOH + Ch), AgNO3, Na2O2, SnCl2, S, water. Mixtures with iron(IⅡ) chloride, iron(IⅡ) oxide, tin(Ⅱ) chloride are easily ignited and burn fiercely. Vigorous reaction with methanol after an induction period. Addttion to silver nitrate solutions precipitates the dangerously explosive silver acetylide. Copper salt solutions behave similarly. See also CALCIUM HYDROXIDE and ACETYLENE.

탄화칼슘 준비 용품 및 원자재

원자재

준비 용품


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