8.21037

ポリエチレングリコール

2000, for synthesis

• 別名: PEG
• 化学式: H(OCH₂CH₂)_nOH
• CAS番号: 25322-68-3
• MDL番号: MFCD00081839
• UNSPSCコード: 13111021
• EC Index Number: 500-038-2
• NACRES: NA.22

特性

• 蒸気圧: <0.1 hPa
• 品質水準: 200
• 形状: flakes
• 自己発火温度: 420 °C
• 有効性: 28000 mg/kg LD₅₀, oral (Rat); >20000 mg/kg LD₅₀, skin (Rabbit)
• pH: 4-7 (20 °C, 100 g/L in H₂O)
• kinematic viscosity: 46-55 cSt(20 °C) (50% solution)
• mp: 49-52 °C
• 転移温度: flash point 250 °C
• 溶解性: 600 g/L
• 密度: 1.21 g/cm³ at 20 °C
• かさ密度: 400‑500 kg/m³
• 保管温度: no temp limit
• SMILES記法: C(CO)O
• InChI: 1S/C2H6O2/c3-1-2-4/h3-4H,1-2H2
• InChI Key: LYCAIKOWRPUZTN-UHFFFAOYSA-N

詳細

アプリケーション

Polyethylene glycol 2000 is a hydrophilic linear polymer that can be used as:

• An organic additive in the synthesis of metal nanoparticles to control the size and morphology of nanostructure.
• A carbon source to prepare acidophilic highly fluorescent carbon dots (CDs) via the one-pot hydrothermal method.
• A dispersion stabilizer to synthesize amorphous Fe₂O₃ nanoparticles by microwave irradiation method. During the synthesis, PEG-2000 inhibits nonhomogeneous precipitation to obtain homogeneous precipitation of the metal nanoparticles.

アナリシスノート

Hydroxyl value: 51 - 63
Melting range (lower value): ≥ 50 °C
Melting range (upper value): ≤ 55 °C
Average molecular mass: 1900 - 2200
Identity (IR): passes test

安全性情報

• 保管分類コード: 10 - Combustible liquids
• WGK: WGK 1
• 引火点(°F): 281.5 °F - closed cup
• 引火点(℃): 138.6 °C - closed cup