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Merck
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重要文件

460176

Sigma-Aldrich

聚乙二醇单油酸酯

average Mn ~860

同義詞:

Polyethylene glycol

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About This Item

CAS號碼:
MDL號碼:
分類程式碼代碼:
12162002
PubChem物質ID:
NACRES:
NA.23
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形狀

solid

分子量

average Mn ~860

折射率

n20/D 1.468

bp

>260 °C (lit.)

酸值

4 KOH/g

羥值

62 mg KOH/g

碘值

28

溶解度

propylene glycol: insoluble
toluene, ethanol, acetone and water: soluble

密度

1.034 g/mL at 25 °C

SMILES 字串

OCCO.[H]\C(CCCCCCCC)=C(/[H])CCCCCCCC(O)=O

InChI

1S/C20H38O3/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-20(22)23-19-18-21/h9-10,21H,2-8,11-19H2,1H3/b10-9-

InChI 密鑰

MUHFRORXWCGZGE-KTKRTIGZSA-N

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應用

增塑剂,表面活性剂。

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 1

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

Eyeshields, Gloves, type N95 (US)


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分析證明 (COA)

Lot/Batch Number

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Questions

1–2 of 2 Questions  
  1. Can this product be used as a lubricant for centrifuge buckets/load bearing bolts in a GMP setting?

    1 answer
    1. This product is of low M-Clarity Quality Level and may not be suitable for use in a Good Manufacturing Practice setting, as most Good Manufacturing Practice regulated products are of high M-Clarity Quality Levels 500 - 600.

      Helpful?

  2. What does it mean by average Mn ~860 in the description?

    1 answer
    1. This product demonstrates an average Mn of approximately 860 daltons. The ‘average Mn' is the Number Average Molecular Weight of all the polymer chains present in a given sample. The number average molecular weight (Mn) is calculated using the following equation:
      Mn = ∑iNiMi / ∑iNi
      where Mi is the molecular weight of a chain
      where Ni is the number of chains of that molecular weight
      where i is the number of polymer molecules
      Please see the link below to review additional information that may be of interest:
      https://www.sciencedirect.com/topics/engineering/number-average-molecular-weight

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