Product Description
Protect light-sensitive reagents and samples from degradation during mixing and short-term storage. This amber-processed conical flask blocks nearly all ultraviolet light below 400 nm and transmits only about 5 percent between 400 and 600 nm, helping photosensitive compounds stay stable.
This listing is for Kimble catalog number 26610-250: RAY-SORB Erlenmeyer Flask, Red, 250 mL. The flask starts as low extractable 33 expansion borosilicate glass and is then RAY-SORB processed for light protection. It has no capacity scale and is supplied with a standard taper PTFE stopper, color coded by size: green 50 mL, yellow 125 mL, red 250 mL and grey 500 mL. Joint sizes are matched to each capacity. LIGHT LABS ships genuine DWK Life Sciences products with knowledgeable support from our Englewood, Colorado team.
Key Features
- Light-blocking glass – Less than 1 percent transmission below 400 nm shields photosensitive contents.
- PTFE stopper included – Inert standard taper stopper seals without sticking or contamination.
- Color-coded stoppers – Stopper colors make flask sizes easy to identify.
- Type I borosilicate base – Low extractable glass is processed for light protection.
- Clean exterior – No printed scale on the light-protective surface.
Specifications
| Catalog Number | 26610-250 |
| Brand | Kimble (DWK Life Sciences) |
| Description | RAY-SORB Erlenmeyer Flask, Red, 250 mL |
| Sold As | Each |
| Glass | Borosilicate glass 3.3 (33 expansion), low extractable |
| Standards | USP Type I; ASTM E438, Type I, Class A |
| Design specification | ASTM E1404, Type II, Class II |
| Light protection | Less than 1% transmission below 400 nm; approx. 5% from 400 to 600 nm |
| Stopper material | PTFE, standard taper |
| Graduations | None |
Available Options
- 26610-125 – RAY-SORB Erlenmeyer Flask, Yellow, 125 mL
- 26610-50 – RAY-SORB Erlenmeyer Flask, Green, 50 mL
- 26610-500 – RAY-SORB Erlenmeyer Flask, Grey, 500 mL
Applications
- Vitamin and pharmaceutical analysis
- Handling photosensitive reagents
- Storing light-sensitive standards
- Photochemistry sample preparation
