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471569

Sigma-Aldrich

二甲基二硫化物

≥99.0%

别名:

DMDS, 甲基二硫醚

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About This Item

线性分子式:
CH3SSCH3
CAS号:
624-92-0
分子量:
94.20
Beilstein:
1730824
EC 号:
210-871-0
MDL编号:
MFCD00008561
UNSPSC代码:
12352100
PubChem化学物质编号:
24870743
NACRES:
NA.22

蒸汽密度

3.24 (vs air)

质量水平

100

蒸汽压

22 mmHg ( 20 °C)

方案

≥99.0%

自燃温度

>572 °F

expl. lim.

16 %

折射率

n20/D 1.525 (lit.)

沸点

109 °C (lit.)

mp

−85 °C (lit.)

密度

1.046 g/mL at 25 °C (lit.)

官能团

disulfide

SMILES字符串

CSSC

InChI

1S/C2H6S2/c1-3-4-2/h1-2H3

InChI key

WQOXQRCZOLPYPM-UHFFFAOYSA-N

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相关类别

一般描述

二甲基二硫 (DMDS) 是一种有机二烷基二硫化物。是我国典型城市生活垃圾填埋场工作面发现的有臭味化合物之一。DMDS 与单不饱和醋酸盐通过碳-碳双键加成形成加合物。这些加合物有助于确定长链单不饱和醋酸酯中双键的位置。用密度泛函理论 (DFT) 和高分辨电子能量损失谱 (HREELS) 研究了 DMDS 在 Au (111) 表面的吸附。

应用

二甲基二硫 (DMDS) 可用于烯烃的衍生化，以 MS 法测定双键的位置。也可用于结合 GC-MS 分析确定 嗜冷弯曲杆菌 中单不饱和脂肪酸的双键位置。

法律信息

Arkema Inc. 产品

警示用语：

Danger

危险分类

Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Irrit. 2 - Flam. Liq. 2 - Skin Sens. 1 - STOT SE 1 Inhalation - STOT SE 3

靶器官

Central nervous system, Upper respiratory tract

储存分类代码

3 - Flammable liquids

WGK

WGK 3

闪点(°F)

59.0 °F - closed cup

闪点(°C)

15 °C - closed cup

个人防护装备

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
SHBS4274
STBL3633
STBL1784
STBL0903
STBK7594

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Adsorption state of dimethyl disulfide on Au?111?: Evidence for adsorption
as thiolate at the bridge site
Hayashi T, et al.
J. Chem. Phys. , 114(17), 7615-7621 (2001)
C W Moss et al.
Journal of clinical microbiology, 27(7), 1467-1470 (1989-07-01)
Location of the double-bond position of monounsaturated fatty acids in Campylobacter cryaerophila was accomplished with combined gas chromatography-mass spectrometry analysis of dimethyl disulfide (DMDS) derivatives. The monoenoic fatty acids from whole bacterial cells were converted to methyl esters and then
Determination of double bond position in mono-unsaturated acetates by mass spectrometry of dimethyl disulfide adducts.
Buser HR, et al.
Analytical Chemistry, 55(6), 818-822 (1983)
Lu Wenjing et al.
Waste management (New York, N.Y.), 42, 74-81 (2015-05-23)
Temporal variation (seasonal and daily) of odor emission on the working face of a large sanitary landfill in China was characterized through a 2 yearlong case study. Odor pollution was most serious in spring and autumn, while lower odor concentrations
L Arellano-García et al.
Water science and technology : a journal of the International Association on Water Pollution Research, 66(8), 1641-1646 (2012-08-22)
The aim of this paper was to evaluate the performance of biotrickling filters (BTFs) for treating low concentrations of dimethyl disulfide (DMDS), using different bacterial consortia adapted to consume reduced sulfur compounds under alkaline (pH ≈ 10) or neutral (pH
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实验方案

GC Analysis of Pyrazines in Peanut Butter

Separation of various pyrazines and sulfur compounds including carbon disulfide and dimethyl disulfide.

GC Analysis of Pyrazines in Peanut Butter

Separation of various pyrazines and sulfur compounds including carbon disulfide and dimethyl disulfide.

GC Analysis of Pyrazines in Peanut Butter

Separation of various pyrazines and sulfur compounds including carbon disulfide and dimethyl disulfide.

GC Analysis of Pyrazines in Peanut Butter

Separation of various pyrazines and sulfur compounds including carbon disulfide and dimethyl disulfide.

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