SPECTRUM TUBES SULPHUR , Each

Details

• This high-quality spectrum tube features a large 10cm capillary in the center, providing a greater viewing area for effectively demonstrating the spectral lines of pure substances. Designed for use with power supplies holding 26cm tubes, it is intended for intermittent operation intervals of 30 seconds on / 30 seconds off. The tube requires a separate spectrum tube power supply (not included). Note that the expected life of the spectrum tube will vary depending on the gas it contains; however, if used as recommended and not allowed to overheat, its useful life is very long.