8.21881

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10000, 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

特性

• 蒸気圧: <0.01 hPa ( 20 °C)
• 品質水準: 200
• 形状: liquid
• 自己発火温度: 340 °C
• 有効性: 28000 mg/kg LD₅₀, oral (Rat); >20000 mg/kg LD₅₀, skin (Rabbit)
• pH: 5-7 (20 °C, 100 g/L in H₂O)
• kinematic viscosity: 500-900 cSt(20 °C)
• mp: 58-63 °C
• 転移温度: flash point 265 °C
• 密度: 1.2 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

詳細

Polyethylene glycol (PEG) is a synthetic, hydrophilic, biocompatible polymer that has a wide range of uses in PEGylation, surface conjugation, nanoparticle coating, and crosslinking for hydrogels. PEGs are made by polymerizing ethylene oxide via a ring-opening reaction to produce a wide range of molecular weights and molecular weight distributions (polydispersity).

アプリケーション

Polyethylene glycol 10000 can be used as a surfactant in the synthesis of Ni₁₂P₅ hollow microspheres via the hydrothermal method in the presence of hexamethylenetetramine (HMT). PEG 10000 significantly improves the formation of high-quality hollow microspheres, without this surfactant morphology is near-spherical particles.
It can also be used as:

• A reactant to synthesize N-PEGylated-thiazolium salt, which is used as an organocatalyst for the benzoin condensation.
• A nonionic dispersive agent in the preparation Nd₂Si₂O₇ ceramic pigment by a co-precipitation method.

アナリシスノート

Melting range (lower value): ≥ 59 °C
Melting range (upper value): ≤ 64 °C
Hydroxyl value: 9 - 12
Average molecular mass: 9000 - 12500
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