Product Description
Photosensitive reactions and reagents can degrade quickly under ordinary lab lighting. This RAY-SORB boiling flask blocks almost all ultraviolet light and most visible light, protecting contents while you heat, stir or store them. It works with standard 24/40 glassware. It is a simple swap for standard flasks in light-sensitive work.
This listing is for Kimble catalog number 25057-250: RAY-SORB Flat Bottom Short Neck Boiling Flask, 24/40, 250 mL. The flask is made from low-extractable, 33 expansion borosilicate glass meeting USP Type I and ASTM E438 Type I, Class A, then RAY-SORB processed. It transmits less than 1 percent of light below 400 nm and about 5 percent from 400 to 600 nm. Designed to ASTM E1403 Type I, Class IV, it has a flat bottom, a short neck and a 24/40 joint, in a 250 mL size. LIGHT LABS ships genuine DWK Life Sciences products with knowledgeable support from our Englewood, Colorado team.
Key Features
- Light protection – Under 1 percent transmission below 400 nm.
- Visible light filtering – About 5 percent transmission from 400 to 600 nm.
- Flat bottom – Stands without a support ring.
- 24/40 joint – Connects to standard taper apparatus.
- ASTM E1403 – Type I, Class IV design.
Specifications
| Catalog Number | 25057-250 |
| Brand | Kimble (DWK Life Sciences) |
| Description | RAY-SORB Flat Bottom Short Neck Boiling Flask, 24/40, 250 mL |
| Sold As | Each |
| Material | Borosilicate glass, 33 expansion, RAY-SORB processed |
| Glass type | USP Type I; ASTM E438 Type I, Class A |
| Standard | ASTM E1403, Type I, Class IV |
| Light transmission | Under 1% below 400 nm; about 5% from 400-600 nm |
| Joint | 24/40 standard taper |
| Bottom | Flat |
Applications
- Light-sensitive reactions
- Photosensitive reagent preparation
- Vitamin and pigment chemistry
- Protected storage
