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重要文件

1.02950

Supelco

二甲基亚砜

for spectroscopy Uvasol®

同義詞:

甲亚磺酰甲烷,甲基亚砜,二甲基(氧化)硫,DMSO, DMSO, 甲基亚砜

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About This Item

線性公式:
(CH3)2SO
CAS號碼:
分子量::
78.13
Beilstein:
506008
MDL號碼:
分類程式碼代碼:
12191502
酶委員會索引編號:
200-664-3
NACRES:
NA.03
bp:
189 °C (lit.)
暫時無法取得訂價和供貨情況

蒸汽密度

2.7 (vs air)

品質等級

蒸汽壓力

0.42 mmHg ( 20 °C)

化驗

≥99.8% (GC)

形狀

liquid

自燃溫度

573 °F

效力

28300 mg/kg LD50, oral (Rat)
40000 mg/kg LD50, skin (Rat)

expl. lim.

42 %, 63 °F

技術

UV/Vis spectroscopy: suitable

雜質

≤0.0002 meq/g Acidity
≤0.0002 meq/g Alkalinity
≤0.05% Water

蒸發殘留物

≤0.0004%

顏色

APHA: ≤10

透射率

270 nm, ≥35%
280 nm, ≥50%
310 nm, ≥80%
330 nm, ≥90%
350 nm, ≥97%

折射率

n20/D 1.479 (lit.)

運動黏度

2.14 cSt

bp

189 °C (lit.)

mp

16-19 °C (lit.)

轉變溫度

flash point 87 °C

密度

1.10 g/mL (lit.)

紫外吸收

λ: 270 nm Amax: ≤0.46
λ: 280 nm Amax: ≤0.30
λ: 310 nm Amax: ≤0.10
λ: 330 nm Amax: ≤0.05
λ: 350 nm Amax: ≤0.013

儲存溫度

2-30°C

SMILES 字串

CS(C)=O

InChI

1S/C2H6OS/c1-4(2)3/h1-2H3

InChI 密鑰

IAZDPXIOMUYVGZ-UHFFFAOYSA-N

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一般說明

UV/VIS 和红外光谱中分析结果的准确性取决于是否使用非常纯的溶剂进行样品制备。Uvasol<TMSYMBOL></TMSYMBOL> 系列是特别被计为用于光谱学和其它需要最高光学纯度化学物质的应用领域。精制过程使得应用更加安全并避免由痕量 UV(紫外线)、IR(红外线)和荧光污染引起对分析结果的错误判断。Uvasol<TMSYMBOL></TMSYMBOL> 溶剂可提供最佳的紫外线透射率。在所有质量标准中,均确定了5种典型波长的最小透射率。

注意

在室温下容易过冷并缓慢重融。 固化产品可以通过加热至室温来重新液化,而不会损害产品。

規格

空气中的饱和浓度:8.0 g/m3(20 °C)

分析報告

纯度(GC): ≥ 99.8 %
蒸发残留物: ≤ 0.0004 %
水: ≤ 0.05 %
颜色: ≤ 10 色度
酸度: ≤ 0.0002 meq/g
碱度: ≤ 0.0002 meq/g
透射率(270 nm): ≥ 35 %
透射率(280 nm): ≥ 50 %
透射率(310 nm): ≥ 80 %
透射率(330 nm): ≥ 90 %
透射率(从350起 nm开始): ≥ 97 %
吸光度(270 nm): ≤ 0.46
吸光度(280 nm): ≤ 0.30
吸光度(310 nm): ≤ 0.10
吸光度(330 nm): ≤ 0.05
吸光度(350 nm): ≤ 0.013

其他說明

欢迎探索各式各样的实验室安全配件和设备,以安全操作溶剂,在首次使用时就能获得较高的安全水平。

法律資訊

UVASOL is a registered trademark of Merck KGaA, Darmstadt, Germany

儲存類別代碼

10 - Combustible liquids

水污染物質分類(WGK)

WGK 1

閃點(°F)

188.6 °F - closed cup

閃點(°C)

87 °C - closed cup


分析證明 (COA)

輸入產品批次/批號來搜索 分析證明 (COA)。在產品’s標籤上找到批次和批號,寫有 ‘Lot’或‘Batch’.。

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Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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