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/418/501/product-dating-information-06-25-mk.pdf
8.07485
聚乙二醇
400, for synthesis
别名:
聚（乙二醇）, PEG
蒸汽壓力
<0.1 hPa ( 20 °C)
品質等級
形狀
liquid
自燃溫度
360 °C (DIN 51794)
效力
28000 mg/kg LD50, oral (Rat)
>20000 mg/kg LD50, skin (Rabbit)
環保替代產品特色
Safer Solvents and Auxiliaries
Learn more about the Principles of Green Chemistry.
sustainability
Greener Alternative Product
pH值
5-7 (20 °C, 100 g/L in H2O)
運動黏度
97-110 cSt(20 °C)
mp
5 °C
轉變溫度
flash point >200 °C
密度
1.13 g/cm3 at 20 °C
環保替代類別
儲存溫度
2-30°C
SMILES 字串
C(CO)O
InChI
1S/C2H6O2/c3-1-2-4/h3-4H,1-2H2
InChI 密鑰
LYCAIKOWRPUZTN-UHFFFAOYSA-N
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相关类别
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此商品 | 8.07490 | 8.19015 | 8.07488 |
|---|---|---|---|
| form liquid | form solid | form liquid | form liquid |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| storage temp. 2-30°C | storage temp. 2-30°C | storage temp. 2-30°C | storage temp. 2-30°C |
| density 1.13 g/cm3 at 20 °C | density 1.2 g/cm3 at 20 °C | density 1.21 g/cm3 at 20 °C | density 1.2 g/cm3 at 20 °C |
| mp 5 °C | mp 53-58 °C | mp 55-58 °C | mp 33-40 °C |
| vapor pressure <0.1 hPa ( 20 °C) | vapor pressure <0.01 hPa ( 20 °C) | vapor pressure <0.1 hPa ( 20 °C) | vapor pressure <0.1 hPa ( 20 °C) |
一般說明
應用
分析報告
羟值：267 - 295
平均分子量：380 - 420
同一性（IR）：通过测试
由于其特定的熔程，产物可以是固体、液体、固化熔体或过冷熔体。
儲存類別代碼
10 - Combustible liquids
水污染物質分類（WGK）
WGK 1
閃點（°F）
281.5 °F - closed cup
閃點（°C）
138.6 °C - closed cup
相关内容
Polyethylene glycol (PEG), also sometimes referred to as polyethylene oxide (PEO), is a condensation polymer of ethylene oxide and water that has several chemical properties that make it useful for biological, chemical and pharmaceutical applications.
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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