.alpha.-octyl-.omega.-hydroxy-Poly(oxy-1,2-ethanediyl) - Names and Identifiers
.alpha.-octyl-.omega.-hydroxy-Poly(oxy-1,2-ethanediyl) - Physico-chemical Properties
Molecular Formula | (C2H4O)nC8H18O
|
Density | 0.964 |
Melting Point | 21°C |
Boling Point | 90-230 °C (0.3 mmHg) |
Flash Point | 176 °C |
Appearance | Liquid |
Color | Clear |
Storage Condition | -20°C |
Refractive Index | 1.4475-1.4495 |
.alpha.-octyl-.omega.-hydroxy-Poly(oxy-1,2-ethanediyl) - Risk and Safety
Hazard Symbols | Xi - Irritant
|
Risk Codes | R36/38 - Irritating to eyes and skin.
R19 - May form explosive peroxides
|
Safety Description | S37/39 - Wear suitable gloves and eye/face protection
S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
|
WGK Germany | 2 |
HS Code | 39072020 |
.alpha.-octyl-.omega.-hydroxy-Poly(oxy-1,2-ethanediyl) - Introduction
Polyethylene Glycol 200 Monooctylether is a chemical polymer, often abbreviated as PEG (polyethylene glycol). Its properties are as follows:
1. Physical properties: PEG is colorless, tasteless, non-toxic solid or liquid, with good solubility and biocompatibility.
2. Chemical properties: PEG has the characteristics of water solubility, can produce hydration reaction with many substances.
3. Molecular Weight: PEG has a wide range of molecular weight, ranging from 400 Da to 20,000 Da.
4. Thermal stability: PEG has high thermal stability and is not easy to decompose at high temperatures.
The main uses of PEG are:
1. Cosmetics and personal care products: PEG is commonly used as emulsifier, thinner or thickener.
2. Pharmaceutical field: PEG is commonly used in the preparation of drug delivery systems, such as drug nanoparticles and capsules.
3. Chemical synthesis: PEG can be used as a solvent, Catalyst or protecting group.
There are two main methods for the preparation of PEG:
1. Etherification method: obtained by reacting octanol with ethylene oxide or ethylene oxide.
2. Carboxylation method: obtained by reacting octanol with 3-oxoglutaryl chloride.
PEG safety information:
1. PEG is a relatively safe compound and generally does not cause acute poisoning.
2. Long-term contact may cause skin irritation or irritation, should avoid unprotected prolonged contact.
3. In application, it is necessary to pay attention to the molecular weight and concentration of PEG to avoid allergic reactions and other adverse reactions.
4. When using PEG, pay attention to follow the safe operation procedures to avoid adverse reactions that may occur when used with other chemical substances.
Last Update:2024-04-09 21:21:28