8.18897
聚乙二醇
20000 (stabilised) for synthesis
别名:
聚（乙二醇）, PEG
蒸汽压
<0.01 hPa ( 20 °C)
质量水平
表单
flakes
自燃温度
>320 °C
效能
28000 mg/kg LD50, oral (Rat)
>20000 mg/kg LD50, skin (Rabbit)
环保替代产品特性
Safer Solvents and Auxiliaries
Learn more about the Principles of Green Chemistry.
sustainability
Greener Alternative Product
pH值（酸碱度）
5-7 (20 °C, 100 g/L in H2O)
mp
58-63 °C
转变温度
flash point 240 °C
溶解性
500 g/L
密度
1.2 g/cm3 at 20 °C
堆积密度
400‑500 kg/m3
环保替代产品分类
储存温度
2-30°C
SMILES字符串
C(CO)O
InChI
1S/C2H6O2/c3-1-2-4/h3-4H,1-2H2
InChI key
LYCAIKOWRPUZTN-UHFFFAOYSA-N
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相关类别
一般描述
We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Green Chemistry. Polyethylene glycol (PEG) is an eco-friendly, biodegradable polymer widely used in pharmaceuticals and cosmetics. Its non-toxic nature and versatility make it a sustainable choice, derived from renewable resources, contributing to greener product formulations. Click here for more information.
应用
聚乙二醇20000(PEG-20000)可作为扩孔剂，用于通过水热法制备介孔La2O3催化剂。PEG 20000可改善La2O3催化剂颗粒的碱度、结晶度、比表面积和分散性。改性后的催化剂对于碳酸二甲酯和甘油的酯交换反应的催化性能更强。
还可用作：
还可用作：
- 表面活性剂，用于各种方法合成纳米材料，控制纳米结构的大小和形态。
- 载体，用于制备零价铁-PEG纳米复合材料(Fe/PEG)，用于去除水性溶液中的Pb(II)。
分析说明
熔程（下限值）： ≥ 62 °C
熔程（上限值）： ≤ 66 °C
羟值：4 - 7
平均分子量：16000 - 28000
熔程（上限值）： ≤ 66 °C
羟值：4 - 7
平均分子量：16000 - 28000
储存分类代码
10 - Combustible liquids
WGK
WGK 1
闪点(°F)
281.5 °F - closed cup
闪点(°C)
138.6 °C - closed cup
Polyethylene Glycol 20000-Supported Zero-Valent Iron Nanoparticle for Removal of Pb (II) from Aqueous Solutions: Characteristics, Kinetic and Thermodynamic Studies
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Science of Advanced Materials, 8(10), 1878-1886 (2016)
Monodisperse mesoporous La2O3 flakes for the synthesis of glycerol carbonate by efficiently catalyzing the transesterification of dimethyl carbonate with glycerol
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Reaction Kinetics, Mechanisms and Catalysis, 128(2), 763-778 (2019)
Hydrothermal synthesis of hexagonal magnesium hydroxide nanoflakes
Wang Qiang, et al.
Materials Research Bulletin, 51, 35-39 (2014)
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Crystal Growth & Design, 17(4), 1654-1660 (2017)
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