ChemicalBook
Chinese English Japanese Germany Korea

디메틸디설파이드

디메틸디설파이드
디메틸디설파이드 구조식 이미지
카스 번호:
624-92-0
한글명:
디메틸디설파이드
동의어(한글):
디메틸디설파이드;이황화메틸;메틸 다이설파이드;다이메틸다이설파이드
상품명:
Dimethyl disulfide
동의어(영문):
mds;DMDS;143F;MDCR;143E;143B;YWHAZ;YWHAG;YWHAE;1433B
CBNumber:
CB8229876
분자식:
C2H6S2
포뮬러 무게:
94.2
MOL 파일:
624-92-0.mol

디메틸디설파이드 속성

녹는점
-85 °C
끓는 점
109 °C(lit.)
밀도
1.0625
증기 밀도
3.24 (vs air)
증기압
22 mm Hg ( 20 °C)
굴절률
n20/D 1.525(lit.)
FEMA
3536 | DIMETHYL DISULFIDE
인화점
76 °F
저장 조건
Flammables area
용해도
2.7g/l
물리적 상태
Liquid
Specific Gravity
1.0647 (20/4℃)
색상
Clear yellow
폭발한계
1.1-16.1%(V)
Odor Threshold
0.0022ppm
수용성
<0.1 g/100 mL at 20 ºC
JECFA Number
564
BRN
1730824
안정성
Stable. Incompatible with strong bases, strong oxidizing agents, strong reducing agents. Flammable.
InChIKey
WQOXQRCZOLPYPM-UHFFFAOYSA-N
CAS 데이터베이스
624-92-0(CAS DataBase Reference)
NIST
Disulfide, dimethyl(624-92-0)
EPA
Methyl disulfide (624-92-0)
안전
  • 위험 및 안전 성명
  • 위험 및 사전주의 사항 (GHS)
위험품 표기 F,Xn,N,T+
위험 카페고리 넘버 11-20/22-36-51/53-36/37/38-26-22-36/37
안전지침서 26-61-45-38-36/37/39-28A-16-60-57-39-29
유엔번호(UN No.) UN 2381 3/PG 2
WGK 독일 2
RTECS 번호 JO1927500
자연 발화 온도 304 °C
TSCA Yes
위험 등급 3
포장분류 II
HS 번호 29309070
유해 물질 데이터 624-92-0(Hazardous Substances Data)
독성 LD50 orally in Rabbit: 290 - 500 mg/kg
기존화학 물질 KE-11343
그림문자(GHS):
신호 어: Danger
유해·위험 문구:
암호 유해·위험 문구 위험 등급 범주 신호 어 그림 문자 P- 코드
H225 고인화성 액체 및 증기 인화성 액체 구분 2 위험 P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501
H302 삼키면 유해함 급성 독성 물질 - 경구 구분 4 경고 P264, P270, P301+P312, P330, P501
H317 알레르기성 피부 반응을 일으킬 수 있음 피부 과민성 물질 구분 1 경고 P261, P272, P280, P302+P352,P333+P313, P321, P363, P501
H319 눈에 심한 자극을 일으킴 심한 눈 손상 또는 자극성 물질 구분 2A 경고 P264, P280, P305+P351+P338,P337+P313P
H331 흡입하면 유독함 급성 독성 물질 흡입 구분 3 위험 P261, P271, P304+P340, P311, P321,P403+P233, P405, P501
H335 호흡 자극성을 일으킬 수 있음 특정 표적장기 독성 - 1회 노출;호흡기계 자극 구분 3 경고
H400 수생생물에 매우 유독함 수생 환경유해성 물질 - 급성 구분 1 경고 P273, P391, P501
H410 장기적 영향에 의해 수생생물에 매우 유독함 수생 환경유해성 물질 - 만성 구분 1 경고 P273, P391, P501
H411 장기적 영향에 의해 수생생물에 유독함 수생 환경유해성 물질 - 만성 구분 2
예방조치문구:
P210 열·스파크·화염·고열로부터 멀리하시오 - 금연 하시오.
P261 분진·흄·가스·미스트·증기·...·스프레이의 흡입을 피하시오.
P273 환경으로 배출하지 마시오.
P280 보호장갑/보호의/보안경/안면보호구를 착용하시오.
P311 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.
P405 밀봉하여 저장하시오.
P403+P233 용기는 환기가 잘 되는 곳에 단단히 밀폐하여 저장하시오.
NFPA 704
3
3 0

디메틸디설파이드 MSDS


DMDS

디메틸디설파이드 C화학적 특성, 용도, 생산

개요

Methyl disulfide has a diffuse intense onion odor. It is nonlachrymatory. May be prepared from magnesium methyl iodide and S2C12, or from Na2S2 and sodium methyl sulfate; also from methyl bromide and sodium thiosulfate, after which the resulting sodium methylthiosulfate is heated to yield dimethyl disulfide.

화학적 성질

Methyl disulfide has a diffuse, intense onion odor. This compound is nonlacrimatory

화학적 성질

colourless to yellow liquid with a very unpleasant smell

출처

Reported found in sour cherry, guava, melon, peach, pineapple, strawberry, cabbage, kohlrabi, onion, garlic, shallot, leek, chive, peas, potato, rutabaga, tomato, parsley, breads, many cheeses, yogurt, milk, egg, fish, meats, hop oil, beer, Scotch whiskey, cognac, grape wines, cocoa, coffee, peanut, peanut butter, pecan, potato chips, oats, soybean, beans, mushrooms, trassi, macadamia nut, mango, cauliflower, broccoli, brussels sprouts, rice, radish, sukiyaki, sake, watercress, malt, wort, krill, southern pea, loquat, sapodilla, shrimp, oyster, crab, crayfish, clam, scallops and squid.

용도

Methyl disulfide is probably best known for its use as a component of flavoring materials. It has an intense onion odor by itself. Ironically, although many find its odor objectionable at high concentrations as noted above, when diluted, its aroma has also been described as pleasant. Methyl disulfide is often used in combination with other flavor compounds in food products, including baked goods, cheese, frozen dairy products, meat products, soups, savory flavors, fruit flavors, soft candy, gelatin, puddings, and both alcoholic and nonalcoholic beverages.
Industrially, methyl disulfide is also used as a sulfiding agent to catalyze reactions in oil refineries and other industries. It has a low flash point of 16 ℃ (61 °F) that presents fire hazards during refinery usage. Due to its strong odor and low flash point, methyl disulfide typically requires storage under nitrogen pressure in closed containers.
Other novel applications are being explored, including inclusion of methyl disulfide in insect trap baiting products to attract biting flies and mosquitos. It is also proposed as an insecticidal fumigant substitute for methyl bromide. Methyl disulfide formed during irradiation of foods also has potential to be used as irradiation detection marker for frozen-stored meats under oxygen-permeable packaging conditions. Among sulfur volatiles, only methyl disulfide was found in meat after 6 months of storage at -40 ℃ (40 °F). Methyl disulfide is also being studied as a signaling molecule in marine ecosystems to study effects of climate change.

제조 방법

From magnesium methyl iodide and S2Cl2, or from S2S2 and sodium methyl sulfate; also from methyl bromide and sodium thiosulfate, after which the resulting sodium methylthiosulfate is heated to yield dimethyl disulfide.

정의

ChEBI: An organic disulfide that is methane in which one of the hydrogens has been replaced by a methyldisulfanyl group.

Aroma threshold values

Detection: 0.16 to 1.2 ppb. Recognition: 90 ppb

일반 설명

A colorless oily liquid with a garlic-like odor. Denser than water and slightly soluble in water. Flash point 40°F. Vapors heavier than air. May irritate skin and eyes. Used to make other chemicals.

공기와 물의 반응

Highly flammable. Slightly soluble in water.

반응 프로필

DMDS is a reducing agent. A dangerous fire hazard when exposed to oxidizing materials. Emits toxic fumes of oxides of sulfur when heated to decomposition or on contact with acids [Sax, 9th ed., 1996, p. 1320].

건강위험

May cause toxic effects if inhaled or absorbed through skin. Inhalation or contact with material may irritate or burn skin and eyes. Fire will produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution.

화재위험

HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.

Safety Profile

Poison by inhalation. A very dangerous fire hazard when exposed to heat, flame, or oxidzers. Can react vigorously with oxiduing materials. See also SULFIDES.

환경귀착

Naturally occurring methyl disulfide is present in small amounts throughout the natural environment. Accidental releases of larger quantities of methyl sulfide from industrial processes can also potentially enter the environment as liquid or vapor. It is immiscible with water, so it is unlikely to be found in high concentrations in water supplies, but it is miscible with most common organic solvents.
The Hazardous Substances Data Bank (HSDB) provides a good, detailed explanation of environmental fate. When released to air, a vapor pressure of 28.7mmHg at 25 ℃ indicates that methyl disulfide will exist as a vapor in the ambient atmosphere. Vapor-phase methyl disulfide is degraded in the atmosphere by reaction with photochemically produced hydroxyl radicals. The half-life for this reaction in air is estimated to be 4 h. Direct photolysis (half-life of 3.2–4.6 h at full sunlight) and reaction with nitrate radicals (half-life of 1.1 h during night-time hours) will also contribute to its atmospheric degradation.
If released to soil, methyl disulfide is expected to have moderate mobility based upon an estimated Koc of 220. In water, methyl disulfide is not expected to adsorb to suspended solids and sediment in water based on its Koc value. In both soil and water, volatilization to the atmosphere is expected to be the major transport process, based on a Henry’s law constant of 1.21× 10–3 atm-m3 mol–1. Estimated volatilization half-lives for a model river and model lake are 3 h and 4 days, respectively. Volatilization from dry soil surfaces is possible given the vapor pressure of this compound. Since methyl disulfide photolyzes readily in sunlight, photodegradation on soil or water surfaces exposed to sunlight could be an important transformation process. Other than photodegradation, because it is such a stable molecule, methyl disulfide is not readily biodegradable by microorganisms and therefore can be relatively persistent in the environment. Although limited biodegradation data suggest that methyl disulfide can biodegrade, insufficient data are available to predict its relative environmental importance in soil or water. An estimated bioconcentration factor (BCF) of 13 suggests the potential for bioconcentration in aquatic organisms is low.

Purification Methods

Pass it through neutral alumina before use. [Trost Chem Rev 78 363 1978, Beilstein 1 IV 1281.]

Toxicity evaluation

Very little information is available on mechanism of toxicity. Although the authors of one experimental animal study suggested that methyl disulfide toxicity resembles that of hydrogen sulfide, it is not at all clear that cytochrome oxidase inhibition can result from methyl disulfide exposure. Mechanistically hydrogen sulfide is classified as a chemical asphyxiant because of its known ability to disrupt electron transport and oxidative phosphorylation by interaction with the enzyme cytochrome oxidase. Other sources classify methyl disulfide a simple asphyxiant, which means that it is nonreactive with enzymes or other cell components and simply displaces oxygen in the air. Some information indicates that neurotoxicity to insects results when methyl disulfide disrupts calcium-activated potassium channels in insect pacemaker neurons.

디메틸디설파이드 준비 용품 및 원자재

원자재

준비 용품


디메틸디설파이드 공급 업체

글로벌( 358)공급 업체
공급자 전화 팩스 이메일 국가 제품 수 이점
Langfang Hawk Techology & Development Co, Ltd.
+86 (316) 222-4727
+86 (316) 222-4730 info@finechemicals-china.com CHINA 23 58
Shandong chuangyingchemical Co., Ltd.
18853181302
sale@chuangyingchem.com CHINA 5917 58
Capot Chemical Co.,Ltd.
+86(0)13336195806 +86-571-85586718
+86-571-85864795 sales@capotchem.com China 20012 60
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 22607 55
Hangzhou FandaChem Co.,Ltd.
008615858145714
+86-571-56059825 fandachem@gmail.com CHINA 8909 55
Hefei TNJ Chemical Industry Co.,Ltd.
+86-0551-65418679
86-0551-65418697 info@tnjchem.com China 3000 55
Tianjin Zhongxin Chemtech Co., Ltd.
022-66880623
022-66880086 sales@tjzxchem.com CHINA 537 58
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 29955 58
Hubei Jusheng Technology Co.,Ltd.
86-18871470254
027-59599243 linda@hubeijusheng.com CHINA 28229 58
Hebei Guanlang Biotechnology Co., Ltd.
+8619930503282
sales3@crovellbio.com China 5902 58

디메틸디설파이드 관련 검색:

Copyright 2019 © ChemicalBook. All rights reserved