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사염화실란

사염화실란
사염화실란 구조식 이미지
카스 번호:
10026-04-7
한글명:
사염화실란
동의어(한글):
사염화규소;사염화실란;실리콘테트라염화물;실리콘테트라염화물(포스포릴클로라이드);실리콘테트라염화물;실리콘 테트라염화물
상품명:
Tetrachlorosilane
동의어(영문):
SiCl4;CT1800;SIC-L(TM);SillconChloride;Perchlorosilane;SILICON CHLORIDE;TETRACHOROSILANE;chloridkremicity;tetrachloro-silan;TETRACHLOROSILANE
CBNumber:
CB7412244
분자식:
Cl4Si
포뮬러 무게:
169.9
MOL 파일:
10026-04-7.mol

사염화실란 속성

녹는점
−70 °C(lit.)
끓는 점
57.6 °C(lit.)
밀도
1.483 g/mL at 25 °C(lit.)
증기 밀도
5.86 (vs air)
증기압
420 mm Hg ( 37.7 °C)
굴절률
1.413
인화점
57.6°C
저장 조건
Store below +30°C.
용해도
Miscible with benzene, toluene, chloroform, petroleum ether, carbon tetrachloride, ether and hydrochloric acid.
물리적 상태
Liquid
색상
Colorless
Specific Gravity
1.483
수소이온지수(pH)
1 (5g/l, H2O)
수용성
reacts
감도
Moisture Sensitive
Hydrolytic Sensitivity
8: reacts rapidly with moisture, water, protic solvents
Merck
14,8500
안정성
Stability Moisture sensitive - reacts violently with water. Incompatible with water, acids, bases, alcohols, alkali metals, organics, powdered metals.
CAS 데이터베이스
10026-04-7(CAS DataBase Reference)
NIST
Silane, tetrachloro-(10026-04-7)
EPA
Silane, tetrachloro- (10026-04-7)
안전
  • 위험 및 안전 성명
  • 위험 및 사전주의 사항 (GHS)
위험품 표기 C,Xi
위험 카페고리 넘버 20/21/22-34-40-36/37/38-14-67-37-35-20/22
안전지침서 26-7/8-45-36/37/39-28-27
유엔번호(UN No.) UN 3264 8/PG 2
WGK 독일 1
RTECS 번호 VW0525000
F 고인화성물질 10-21
TSCA Yes
HS 번호 2812 19 90
위험 등급 8
포장분류 II
유해 물질 데이터 10026-04-7(Hazardous Substances Data)
기존화학 물질 KE-31044
사고대비 물질 필터링 96
그림문자(GHS):
신호 어: Danger
유해·위험 문구:
암호 유해·위험 문구 위험 등급 범주 신호 어 그림 문자 P- 코드
H314 피부에 심한 화상과 눈에 손상을 일으킴 피부부식성 또는 자극성물질 구분 1A, B, C 위험 P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
H319 눈에 심한 자극을 일으킴 심한 눈 손상 또는 자극성 물질 구분 2A 경고 P264, P280, P305+P351+P338,P337+P313P
H332 흡입하면 유해함 급성 독성 물질 흡입 구분 4 경고 P261, P271, P304+P340, P312
H335 호흡 자극성을 일으킬 수 있음 특정 표적장기 독성 - 1회 노출;호흡기계 자극 구분 3 경고
H336 졸음 또는 현기증을 일으킬 수 있음 특정표적장기 독성 물질(1회 노출);마취작용 구분 3 경고 P261, P271, P304+P340, P312,P403+P233, P405, P501
H351 암을 일으킬 것으로 의심됨 (노출되어도 암을 일으키지 않는다는 결정적인 증거가 있는 노출경로가 있다면 노출경로 기재) 발암성 물질 구분 2 경고 P201, P202, P281, P308+P313, P405,P501
H373 장기간 또는 반복 노출되면 장기(또는, 영향을 받은 알려진 모든 장기를 명시)에 손상을 일으킬 수 있음 특정 표적장기 독성 - 반복 노출 구분 2 경고 P260, P314, P501
예방조치문구:
P261 분진·흄·가스·미스트·증기·...·스프레이의 흡입을 피하시오.
P280 보호장갑/보호의/보안경/안면보호구를 착용하시오.
P309 노출되었거나 몸이 편치 않은 경우
P310 즉시 의료기관(의사)의 진찰을 받으시오. 삼켰다면 즉시 의료기관(의사)의 도움을 받으시오.
P301+P310 삼켰다면 즉시 의료기관(의사)의 진찰을 받으시오.
P303+P361+P353 피부(또는 머리카락)에 묻으면 오염된 모든 의복은 벗거나 제거하시오 피부를 물로 씻으시오/샤워하시오.
P305+P351+P338 눈에 묻으면 몇 분간 물로 조심해서 씻으시오. 가능하면 콘택트렌즈를 제거하시오. 계속 씻으시오.
P402+P404 건조한 장소에 보관하시오. 밀폐된 용기에 보관하시오.
P403+P233 용기는 환기가 잘 되는 곳에 단단히 밀폐하여 저장하시오.
NFPA 704
0
3 2

사염화실란 C화학적 특성, 용도, 생산

개요

Chlorosilanes (general formula RnHmSiCl4-n-m, where R is an alkyl, aryl, or olefin group) are compounds in which silicon is bound to between one and four chlorine atoms, bonds with hydrogen and/or organic groups making its total number of bonds up to four. Chlorosilanes react with water, moist air, and steam, producing heat and toxic, corrosive hydrogen chloride fumes. Contact between gaseous hydrogen chloride and metals may release gaseous hydrogen, which is inflammable and explosive. Chlorosilanes react vigorously with oxidizing agents, alcohols, strong acids, strong bases, ketones, and aldehydes.

화학적 성질

Clear colorless liquid

용도

. Silicon tetrachloride (SiCl4) may be used as an intermediate in the manufacture of high purity silicon. High purity silicon derived from silicon tetrachloride may find major applications in the semiconductors industry and photovoltaic cells. . High purity SiCl4 may be used to manufacture of optical fibers.

용도

Silicon tetrachloride (SiCl4), produced when both silicon and chlorine are combined at high temperatures, is used by the military to produce smoke screens.

용도

Chlorosilanes are chemical intermediates used in the production of silicon and silicon-containing materials, and in the semiconductor industry; they are also protecting agents for intermediates in pharmaceutical syntheses. The most important industrially utilized silicon halides are trichlorosilane and silicon tetrachloride.
Silicon tetrachloride (SiCl4) can be manufactured by chlorination of silicon compounds such as ferrosilicon or silicon carbide, or by heating silicon dioxide and carbon in a stream of chlorine. It can also be obtained as a by-product in the production of zirconium tetrachloride, and in the past substantial quantities were produced by this route, which in recent decades has lost importance owing to the reduced demand for zirconium in nuclear facilities. Nowadays, industrial silicon tetrachloride is produced either by direct reaction of hydrogen chloride with silicon – this product mainly being employed as an intermediate in fumed silica production – or as the by-product of the production of silane for the microelectronics industry by disproportionation of trichlorosilane.

생산 방법

Manufactured directly by the reaction of chlorine on silicon metal or ferrosilicon at 500C or silicon carbide.

일반 설명

Tetrachlorosilane is a colorless, fuming liquid with a pungent odor. Tetrachlorosilane is decomposed by water to hydrochloric acid with evolution of heat. Tetrachlorosilane is corrosive to metals and tissue in the presence of moisture. Tetrachlorosilane is used in smoke screens, to make various silicon containing chemicals, and in chemical analysis.

반응 프로필

Chlorosilanes, such as Tetrachlorosilane, are compounds in which silicon is bonded to from one to four chlorine atoms with other bonds to hydrogen and/or alkyl groups. Chlorosilanes react with water, moist air, or steam to produce heat and toxic, corrosive fumes of hydrogen chloride. They may also produce flammable gaseous H2. They can serve as chlorination agents. Chlorosilanes react vigorously with both organic and inorganic acids and with bases to generate toxic or flammable gases. Tetrachlorosilane is incompatible with alkali metals and dimethyl sulfoxide.

위험도

Toxic by ingestion and inhalation, strong irritant to tissue.

건강위험

Inhalation causes severe irritation of upper respiratory tract resulting in coughing, choking, and a feeling of suffocation; continued inhalation may produce ulceration of the nose, throat, and larynx; if inhaled deeply, edema of the lungs may occur. Contact of liquid with eyes causes severe irritation and painful burns; may cause permanent visual impairment. Liquid may cause severe burns of skin. Repeated skin contact with dilute solutions or exposure to concentrated vapors may cause dermatitis. Ingestion causes severe internal injury with pain in the throat and stomach, intense thirst, difficulty in swallowing, nausea, vomiting, and diarrhea; in severe cases, collapse and unconsciousness may result.

화재위험

Behavior in Fire: Contact with water in foam applied to adjacent fires will produce irritating fumes of hydrogen chloride.

Safety Profile

Mildly toxic by inhalation. A corrosive irritant to eyes, skin, and mucous membranes. Reacts with water to form HCl. Violent reaction with Na, K. When heated to decomposition it emits toxic fumes of Cl-. See also CHLOROSILANES.

환경귀착

Studies of rats subjected to acute inhalation of 10 structurally similar chlorosilanes, including tetrachlorosilane, suggest that the acute toxicity of chlorosilanes is largely due to the hydrogen chloride hydrolysis product. The observed effects were similar to those of HCl inhalation both qualitatively (clinical signs) and quantitatively (molar equivalents of hydrogen chloride at the atmospheric LC50).

Purification Methods

Distil it under vacuum and store it in sealed ampoules under N2. It fumes in moist air and is very sensitive to moisture. It is soluble in organic solvents. It is a strong irritant. [Schenk in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I pp 682-683 1963.]

Toxicity evaluation

Silicon tetrachloride is a colorless, noninflammable, volatile liquid with a pungent, suffocating odor. It fumes in air and is corrosive to metals and tissues in the presence of moisture. In experiments at Argonne National Laboratory in which it was mixed with water and stirred under room conditions, about 35% of the theoretical yield of HCl evolved as a gas in the first minute. It also reacts very rapidly with alcohols, primary and secondary amines, ammonia, and other compounds containing active hydrogen atoms. Thermal decomposition or burning may produce dense white clouds of silicon oxide particles and hydrogen chloride.
Silicon tetrachloride is a by-product in the production of polysilicon, the key component of sunlight-capturing wafers in solar energy panels, and for each ton of polysilicon produced, at least four tons of silicon tetrachloride liquid waste are generated. Pollution by silicon tetrachloride has been reported in China, associated with the increased demand for photovoltaic cells that has been stimulated by subsidy programs.

사염화실란 준비 용품 및 원자재

원자재

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