황화디메틸
|
|
황화디메틸 속성
- 녹는점
- −98 °C(lit.)
- 끓는 점
- 38 °C(lit.)
- 밀도
- 0.846 g/mL at 25 °C(lit.)
- 증기 밀도
- 2.1 (vs air)
- 증기압
- 26.24 psi ( 55 °C)
- 굴절률
- n
20/D 1.435(lit.)
- 인화점
- −34 °F
- 저장 조건
- Store at +2°C to +8°C.
- 용해도
- 알코올, 에테르, 에스테르, 케톤, 지방족 및 방향족 탄화수소와 혼합 가능합니다.
- 물리적 상태
- 액체
- 색상
- 무색의
- Specific Gravity
- 0.849 (20/4℃)
- 냄새
- 불쾌하고 확산되는 냄새.
- 폭발한계
- 2.2-19.7%(V)
- Odor Threshold
- 0.003ppm
- ?? ??
- 유황의
- JECFA Number
- 452
- Merck
- 14,6123
- BRN
- 1696847
- Dielectric constant
- 6.3(20℃)
- 노출 한도
- ACGIH: TWA 10 ppm
- 안정성
- Stable. Incompatible with strong oxidizing agents. Highly flammable - note low boiling point, low flash point, and wide explosion limits. Mixtures with air are potentially explosive. Incompatible with strong oxidizing agents. Use in UK regulated by LPG Regulations 1978 in accordance with HSE guidance note CS17.
- InChIKey
- QMMFVYPAHWMCMS-UHFFFAOYSA-N
- LogP
- 0.89
- CAS 데이터베이스
- 75-18-3(CAS DataBase Reference)
안전
- 위험 및 안전 성명
- 위험 및 사전주의 사항 (GHS)
위험품 표기 | F,Xn,Xi | ||
---|---|---|---|
위험 카페고리 넘버 | 11-22-37/38-41-36 | ||
안전지침서 | 7-9-16-29-33-36/39-26 | ||
유엔번호(UN No.) | UN 1164 3/PG 2 | ||
WGK 독일 | 1 | ||
RTECS 번호 | PV5075000 | ||
F 고인화성물질 | 13 | ||
자연 발화 온도 | 402 °F | ||
TSCA | Yes | ||
HS 번호 | 2930 90 98 | ||
위험 등급 | 3 | ||
포장분류 | II | ||
유해 물질 데이터 | 75-18-3(Hazardous Substances Data) | ||
독성 | LD50 orally in Rabbit: 535 mg/kg LD50 dermal Rabbit > 5000 mg/kg | ||
기존화학 물질 | KE-33766 |
황화디메틸 C화학적 특성, 용도, 생산
개요
Dimethyl sulfide, a sulfur ether compound, shares structural and property similarities with dimethyl ether. It is a colorless, volatile liquid that exhibits a distinct seafood-like odor. This compound is naturally generated through protein decomposition and serves as one of the culprits responsible for the fishy scent often associated with seafood.화학적 성질
Methyl sulfide, also known as Dimethyl sulfide, is a clear colorless volatile liquid that has an intense, unpleasant odor, wild radish, cabbage-like. It can be tolerated as a green vegetable note only at very low levels (0.1 - 3.0 ppm). Dimethyl sulfide is soluble in ethanol and ether, but insoluble in water.출처
Reported found in American peppermint oil, the oil of Algerian geranium, mint fractions, butter, orange, orange juice and grapefruit juice, black currant, berries, asparagus, kohlrabi, cabbage, carrot, celery, onion, garlic, peas, potato, rutabaga, sauerkraut, tomato, Scotch spearmint oil, parsley, wheat bread, many cheeses, yogurt, milk, cream, buttermilk, raw and cooked egg, fish, chicken, cooked beef, mutton, pork liver, hop oil, beer, cognac rum, grape wines, sherry, tea, roasted filberts and peanuts, oats, soybean, olive, beans, mushroom, starfruit, trassi, Bantu beer, macadamia nut, mango, cauliflower, Brussels sprouts, rice, sake, buckwheat, sweet corn, malt, wort, dried bonito, krill, shrimp, oysters, truffle, okra, crab, clam and scallop용도
Dimethyl sulfide is used as a displaceable ligand in chloro(dimethyl sulfide)gold(I) and other coordination compounds, as a reducing agent in ozonolysis reactions as well as a food flavoring component. Further, it is utilized for the preparation of dimethyl sulfoxide, which is a common and important industrial solvent. It finds application in the petroleum industry.제조 방법
By reaction of potassium sulfide with methyl chloride in methanol solution; from potassium methyl sulfate and potassium sulfide정의
ChEBI: Dimethyl sulfide is a methyl sulfide in which the sulfur atom is substituted by two methyl groups. It is produced naturally by some marine algae. It has a role as a bacterial xenobiotic metabolite, a marine metabolite, an EC 3.5.1.4 (amidase) inhibitor, an algal metabolite and an Escherichia coli metabolite.일반 설명
A clear colorless to straw colored liquid with a disagreeable odor. Flash point less than 0°F. Less dense than water and slightly soluble in water. Vapors are heavier than air.공기와 물의 반응
Highly flammable. Slightly soluble in water.반응 프로필
Organosulfides, such as Dimethyl sulfide, are incompatible with acids, diazo and azo compounds, halocarbons, isocyanates, aldehydes, alkali metals, nitrides, hydrides, and other strong reducing agents. Reactions with these materials generate heat and in many cases hydrogen gas. Many of these compounds may liberate hydrogen sulfide upon decomposition or reaction with an acid. Dimethyl sulfide rapidly decomposes dibenzoyl peroxide explosively in the absence of solvent, [J. Org. Chem., 1972, 37, 2885]. The sulfide also decomposes xenon difluoride explosively at ambient temps, [J, Chem Soc., 1984, 2827]. Interaction of Dimethyl sulfide and oxygen is explosive at 210°C and above, [Atmos. Environ., 1967, 1, 491-497]. A delayed explosion occurred in a system containing nitric acid, Dimethyl sulfide, and 1, 4-dioxane, even with cooling with liquid nitrogen, [Chem. Abs., 1972, 76, 13515].건강위험
Inhalation causes moderate irritation of upper respiratory system. Contact of liquid with eyes causes moderate irritation. Repeated contact with skin may extract oils and result in irritation. Ingestion causes nausea and irritation of mouth and stomach.Safety Profile
Poison by inhalation. Moderately toxic by ingestion. A skin and severe eye irritant. A very dangerous fire hazard when exposed to heat or flame. Explosive in the form of vapor when exposed to heat or flame. Can react vigorously with oxidizing materials. To fight fire, use CO2, dry chemical. When heated to decomposition it emits highly toxic fumes of SOx and may explode. See also SULFIDES.Purification Methods
Purify dimethyl sulfide via the Hg(II) chloride complex by dissolving 1 mole of Hg(II)Cl2 in 1250mL of EtOH and slowly adding the boiling alcoholic solution of Me2S to give the right ratio for 2(CH3)2S.3HgCl2. After recrystallisation of the complex to constant melting point, 500g of complex is heated with 250mL conc HCl in 750mL of water. The sulfide is separated, washed with water, and dried with CaCl2 and CaSO4. Finally, it is distilled under reduced pressure from sodium. Precautions should be taken (efficient fume hood) because of its very UNPLEASANT ODOUR.[Beilstein 1 IV 1275.]황화디메틸 준비 용품 및 원자재
원자재
준비 용품
Ethyl 5-[3-(4,6-dimethoxy pyrimidyl-2-yl)ureido]methylpyrazolyl-4-carboxylic ester
디메틸티오린산클로라이드
디메토에이트
Procarbazone sodium
Fluorescent Brightener 185
Fluticasone propionate
Pazufloxacin
Ethyl 3-furancarboxylate
카보페노티온
메틸 파라싸이온(메틸 파라티온)
메티다티온
4-AMINO-2-(METHYLTHIO)-6-PYRIMIDINOL
아세페이트
페니트로티온
라니티딘
Azamethiphos
페노티오캅
오메토산
Mifepristone
Ketorolac
이소펜포스
포스멧
4-Methylthio-4-methyl-2-pentanone
5-CARBOXYCYTOSINE
Methyl [(dimethoxyphosphinothioyl)thio]acetate
CYANOPHOS
피프로닐
4-AMINO-2-(METHYLTHIO)PYRIMIDINE-5-CARBOXYLIC ACID
다이메틸 설폭사이드
Ammonium O,O-dimethyl dithiophosphate
3-푸란메탄올
ETHYL 4-AMINO-2-(METHYLTHIO)PYRIMIDINE-5-CARBOXYLATE
멜라티온
WL 108477
FLOSEQUINAN
클로로메틸메틸술파이드
디알킬디티오인산
5-HYDROXYMETHYLCYTOSINE
Aminoguanidinium sulphate
황화디메틸 공급 업체
글로벌( 441)공급 업체
공급자 | 전화 | 이메일 | 국가 | 제품 수 | 이점 |
---|---|---|---|---|---|
Hebei Mojin Biotechnology Co., Ltd | +8613288715578 |
sales@hbmojin.com | China | 12450 | 58 |
Hebei Guanlang Biotechnology Co,.LTD | +8619930503252 |
daisy@crovellbio.com | China | 5828 | 58 |
Capot Chemical Co.,Ltd. | 571-85586718 +8613336195806 |
sales@capotchem.com | China | 29798 | 60 |
Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 |
info@tianfuchem.com | China | 21668 | 55 |
Hangzhou FandaChem Co.,Ltd. | 008657128800458; +8615858145714 |
fandachem@gmail.com | China | 9332 | 55 |
career henan chemical co | +86-0371-86658258 +8613203830695 |
sales@coreychem.com | China | 29894 | 58 |
Hubei Jusheng Technology Co.,Ltd. | 18871490254 |
linda@hubeijusheng.com | CHINA | 28180 | 58 |
Hebei Guanlang Biotechnology Co., Ltd. | +86-19930503282 |
alice@crovellbio.com | China | 8822 | 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 |