디이오도메탄
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디이오도메탄 속성
- 녹는점
- 6 °C
- 끓는 점
- 67-69 °C11 mm Hg(lit.)
- 밀도
- 3.325 g/mL at 25 °C(lit.)
- 증기 밀도
- 9.25 (vs air)
- 굴절률
- 1.737
- 인화점
- 181°C
- 저장 조건
- Store below +30°C.
- 용해도
- 0.8g/L
- 물리적 상태
- 액체
- 색상
- 진한 노란색
- Specific Gravity
- 3.325
- 수용성
- 14g/L(20℃)
- 감도
- Light Sensitive
- Merck
- 14,6066
- BRN
- 1696892
- Dielectric constant
- 5.3(-4℃)
- 안정성
- 안정적인. 강한 산화제, 강한 염기와 호환되지 않습니다. 알칼리금속염과 격렬하게 반응함. 빛에 노출되면 변색될 수 있습니다.
- CAS 데이터베이스
- 75-11-6(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
위험품 표기 | Xi,Xn | ||
---|---|---|---|
위험 카페고리 넘버 | 36/37/38-22-20/21/22 | ||
안전지침서 | 26-37/39-36/37/39 | ||
유엔번호(UN No.) | 2810 | ||
WGK 독일 | 3 | ||
RTECS 번호 | PA8575000 | ||
F 고인화성물질 | 8 | ||
TSCA | Yes | ||
위험 등급 | 6.1 | ||
포장분류 | III | ||
HS 번호 | 29033080 | ||
독성 | LD50 orally in Rabbit: 76 mg/kg |
디이오도메탄 C화학적 특성, 용도, 생산
용도
유기 합성을.개요
Diiodomethane (CH2I2) is an iodine containing organic compound. Its decomposition in acetonitrile initiated by 310nm light has been investigated. Femtosecond pump-probe spectroscopic and ab initio molecular dynamics simulations studies of the photodecomposition of CH2I2 suggest the formation of the isomer of diiodomethane (CH2I-I) as hot photoproduct. In the atmosphere, it undergoes photolysis in the presence of ozone to afford iodine oxide (IO) which results in the formation of aerosols. Its vacuum ultraviolet (VUV) photoabsorption spectrum has been reported.Diiodomethane has been used as a probe liquid for evaluation of the polar and dispersive components of the surface energy of the catecholamine coated fiber surfaces. It may be used for the preparation of cyclopropyl ketones, esters and amides.
Diiodomethane may be used as a probe solvent in contact angle measurement to analyze the hydrophilicity of polymer surfaces.
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화학적 성질
Diiodomethane is a light yellow or gold liquid with chloroform-like odour. It has a relative density of 3.325 at 20°C and can be mixed with benzene to produce liquids with different densities. These mixtures are used in the determination of the refractive indices of minerals and for the separation of minerals according to density.용도
Diiodomethane is used to determine the density of minerals and other solid samples due to its high density. It is used as an optical contact liquid to determine the refractive index of certain gemstones. In simmons-smith reaction, it acts as a reagent to generate methylene (carbine) free radical. It reacts with olefins to prepare cyclopropanes with high stereo specificity.주요 응용
Diiodomethane is used as the dispersive (non-polar) liquid while de-ionized water and glycerol as polar liquids. It is also used in separating mixtures of minerals. In determining the specific gravity of minerals and other substances. In the manufacture of x-ray contrast media.일반 설명
Diiodomethane (CH2I2) is an iodine containing organic compound. Its decomposition in acetonitrile initiated by 310nm light has been investigated. Femtosecond pump-probe spectroscopic and ab initio molecular dynamics simulations studies of the photodecomposition of CH2I2 suggest the formation of the isomer of diiodomethane (CH2I-I) as hot photoproduct. In the atmosphere, it undergoes photolysis in the presence of ozone to afford iodine oxide (IO) which results in the formation of aerosols. Its vacuum ultraviolet (VUV) photoabsorption spectrum has been reported.위험도
May be irritating and narcotic.Diiodomethane has the advantages of high opacity,ease of penetration,and ease of removal because it evaporates fairly quickly.However,it can cause skin burns.
Synthesis
Diiodomethane can be prepared from the widely available solvent dichloromethane by the action of sodium iodide in acetone in the Finkelstein reaction:CH2Cl2 + 2 NaI → CH2I2 + 2 NaCl.
It can also be prepared by reducing iodoform with elemental phosphorus or sodium arsenite:
CHI3 + Na3AsO3 + NaOH → CH2I2 + NaI + Na3AsO.
Diiodomethane is prepared by reacting iodoform with sodium acetate in ethanol.
Purification Methods
Fractionally distil it under reduced pressure, then fractionally crystallise it by partial freezing, and stabilize it with silver wool if necessary. It has also been purified by drying over CaCl2 and fractionally distilling from Cu powder. Store it in the dark. [Beilstein 1 IV 97.]디이오도메탄 준비 용품 및 원자재
원자재
준비 용품
시클로프로필카르비놀
Piperonyloyl chloride
메틸3-메톡시-4,5-메틸렌디옥시벤조에이트
N,N-DiMethylMethyleneaMMoniuM Iodide
4-BROMO-7-METHOXY-BENZO[1,3]DIOXOLE-5-CARBOXYLICACID메틸에스테르
3,4-(METHYLENEDIOXY)PHENYLACETIC ACID
3,4-(METHYLENEDIOXY)PHENYL ISOCYANATE
사이클로프로판
BIS(PHENYLTHIO)METHANE
Diethyl (hydroxymethyl)phosphonate
DIETHYL IODOMETHYLPHOSPHONATE
BIS(2-METHOXYETHOXY)메탄
1-메틸-4-[(4-메틸페닐)술포닐옥시메톡시술포닐]벤젠
플루오로요오도-메탄
1-페닐-1-시클로프로판올
디이오도메탄 공급 업체
글로벌( 399)공급 업체
공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
---|---|---|---|---|---|
Hebei Mojin Biotechnology Co., Ltd | +86 13288715578 +8613288715578 |
sales@hbmojin.com | China | 12446 | 58 |
Hebei Chuanghai Biotechnology Co,.LTD | +86-13131129325 |
sales1@chuanghaibio.com | China | 5882 | 58 |
Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 |
info@tianfuchem.com | China | 21667 | 55 |
Zhejiang ZETian Fine Chemicals Co. LTD | +8618957127338 |
stella@zetchem.com | China | 2136 | 58 |
Hubei xin bonus chemical co. LTD | 86-13657291602 |
linda@hubeijusheng.com | CHINA | 22968 | 58 |
Shandong chuangyingchemical Co., Ltd. | 18853181302 |
sale@chuangyingchem.com | CHINA | 5909 | 58 |
CONIER CHEM AND PHARMA LIMITED | +8618523575427 |
sales@conier.com | China | 49392 | 58 |
career henan chemical co | +86-0371-86658258 +8613203830695 |
factory@coreychem.com | China | 29823 | 58 |
SIMAGCHEM CORP | +86-13806087780 |
sale@simagchem.com | China | 17367 | 58 |
Hebei Miaobian Biotechnology Co., Ltd | +8617733850068 |
CHINA | 979 | 58 |
디이오도메탄 관련 검색:
4,4′-메틸렌 비스(페닐 이소시아네이트)(고체) 아이오딘 요오드 메탄 메틸렌블루 요오드포름 p-톨릴 디요오도메틸 술폰 테트라아이오딘화 탄소
Propidium iodide
Trifluoromethyl iodide
Dimethiodal sodium
DIIODOMETHANE-D2,DIIODOMETHANE-D2, 99 ATOM % D
Methylene Chloride
TETRAIODOETHYLENE
TRIIODOACETIC ACID
Diiododifluoromethane
1,1-DIIODO-2,2-DIMETHYLPROPANE
DIIODOMETHANE-13C, 99 ATOM % 13C,DIIODOMETHANE (13C)
1,1-diiodoethane