Description
Polyethylene glycol 8000 is a high-molecular-weight polymer offered as ROTIPURAN® Ph.Eur. grade for laboratory and formulation work. Identified by CAS number 25322-68-3, it covers a molar mass range of 7300-9000 g/mol and shows a density of 1,2 g/cm³. The flash point lies between 240 and 270 °C, supporting informed handling in heated processes. Eur.-aligned polyethylene glycol is specified. Its defined molecular-weight window promotes reproducible behaviour in aqueous and mixed solvent systems. The product is registered under EG number 500-038-2. Solid form and documented physical properties simplify weighing, dissolution, and incorporation into experimental protocols. Research, quality-control, and development laboratories select this grade for consistent performance in pharmaceutical-related and general chemical applications requiring a well-characterised polyethylene glycol 8000.
This article is part of Analytical grade solvents (p.a.), in Solvents.
Key features
- Appearance: solid, scaled
- Average molar mass: 7300-9000 g/mol
- Colour count (APHA, 25 % in H2O): ≤30
- Hydroxyl value: 12-16 mg KOH/g
- Solidifying point: 56-61 °C
- pH value (5 % in H2O): 5.0-7.5
- Water (KF): ≤1.0 %
- Viscosity (20 °C, 50 % in H2O): 290-450 mPa s
- Sulphated ash: ≤0.1 %
- Dioxane: ≤0.0001 %
- CAS number: 25322-68-3
- Pack sizes: 500 g, 1 kg, 5 kg
- EG nr.: 500-038-2
- Molar mass: 7300-9000 g/mol
- Density: 1,2 g/cm³
- Technical Information Sheet:
- Safety Data Sheet:
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Questions about Polyethylene glycol 8000, ROTIPURAN® Ph.Eur., 500 g, plastic
What is this article?
Polyethylene glycol 8000, ROTIPURAN® Ph.Eur., 500 g, plastic is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Analytical grade solvents (p.a.), inside Solvents, in Lab chemicals.
An analytical-grade solvent, often marked p.a., has impurity limits tight enough for classical analysis and for preparing reagents. It is not automatically low enough in UV absorbance for HPLC, and it is not dry enough for a water-sensitive reaction. The grade is the purchase.
A solvent dissolves. The grade says which impurities are low enough for the method. Analytical grade is the ordinary pure solvent. HPLC and LC-MS grades limit the absorbance and the ions that would become peaks or background. A dry solvent has had water removed. A deuterated solvent is for NMR, where the hydrogen signal would otherwise drown the sample. Technical grade is for cleaning and for synthesis that does not need a chromatogram. Identity is on PubChem. Names follow IUPAC. Hazards follow ECHA, the CLP Regulation and REACH.
Which category should I open next?
The category is Solvents. The sub-category is Analytical grade solvents (p.a.). The catalogue is Lab chemicals.
Shelves beside this one are HPLC & LC-MS grade solvents, Dry & deuterated solvents (NMR, synthesis), Technical & synthesis grade solvents and Green & alternative solvents.
What should I check before I order?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Delivery across Europe, two to five days when in stock. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.
