8.18897
ポリエチレングリコール
20000 (stabilised) for synthesis
より環境に優しい選択肢
別名:
PEG
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この商品について
化学式:
H(OCH2CH2)nOH
CAS番号:
NACRES:
NA.22
EC Index Number:
500-038-2
UNSPSC Code:
13111021
MDL number:
vapor pressure
<0.01 hPa ( 20 °C)
Quality Segment
form
flakes
autoignition temp.
>320 °C
potency
28000 mg/kg LD50, oral (Rat), >20000 mg/kg LD50, skin (Rabbit)
greener alternative product characteristics
Safer Solvents and Auxiliaries
Learn more about the Principles of Green Chemistry.
sustainability
Greener Alternative Product
pH
5-7 (20 °C, 100 g/L in H2O)
mp
58-63 °C
transition temp
flash point 240 °C
solubility
500 g/L
density
1.2 g/cm3 at 20 °C
bulk density
400‑500 kg/m3
greener alternative category
storage temp.
2-30°C
SMILES string
C(CO)O
InChI
1S/C2H6O2/c3-1-2-4/h3-4H,1-2H2
InChI key
LYCAIKOWRPUZTN-UHFFFAOYSA-N
General description
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.
Application
Polyethylene glycol 20000 (PEG-20000) can be used as a pore-expanding agent to prepare mesoporous La2O3 catalyst via hydrothermal process. The effect of PEG 20000 on La2O3 catalyst particles, results in increased alkalinity, crystallinity, specific surface area, and dispersion. These modifications of the catalyst improve the catalytic performance in the transesterification of dimethyl carbonate with glycerol.
It can also be used as:
It can also be used as:
- A surfactant in the synthesis of nanomaterials by various methods to control the size and morphology of nanostructure.
- A support to prepare zero-valent iron-PEG nanocomposite material (Fe/PEG) applicable in the removal of Pb(II) from aqueous solutions.
Analysis Note
Melting range (lower value): ≥ 62 °C
Melting range (upper value): ≤ 66 °C
Hydroxyl value: 4 - 7
Average molecular mass: 16000 - 28000
Melting range (upper value): ≤ 66 °C
Hydroxyl value: 4 - 7
Average molecular mass: 16000 - 28000
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保管分類
10 - Combustible liquids
wgk
WGK 1
flash_point_f
281.5 °F - closed cup
flash_point_c
138.6 °C - closed cup
適用法令
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8188970000: + 8188975000: + 8188971000: + 8188979999:
jan