Polyethylene glycol (PEG-400)

Description

What is Polyethylene Glycol (PEG-400)?

PEG-400, also known as polyethylene glycol, is a hydrophilic polymer composed of ethylene glycol units. It is a colorless, odorless, and viscous liquid with an average molecular mass of 400. Due to its relatively low molecular mass and hydrophilic properties, PEG-400 is highly soluble in water and many organic solvents. Polyethylene glycol is known as a chemically unreactive and water-attracting substance.

Properties and uses of Polyethylene glycol (PEG-400)?

In general, polyethylene glycols are highly soluble in water. The solubility is influenced by the length of the molecular chain and the molecular mass. These properties also determine the physical state: at a molecular mass below 600 g/mol, PEG is colorless, while higher masses take on solid forms.

Laboratory and industrial applications
Laboratory Solution & Reagent – Excellent solvent for chemical syntheses and biomedical experiments.
Cryopreservation – Protects cells and enzymes from damage during freezing.
Filtration & separation – Applied in biotechnological and chemical analyses.
Industrial solvent – Compatible with a wide range of compounds, suitable for technical processes.

FREQUENTLY ASKED QUESTIONS – FAQ

Is PEG‑400 safe to use?
In general, PEG-400 is low-reactivity and safe to use as long as standard safety precautions are followed and contact with eyes and skin is limited.

How do I store this product?
Stored in a well-closed container, cool and dry.

Can I dissolve PEG‑400 in water?
Yes, PEG‑400 is highly soluble in water and also mixes well with many organic solvents.

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