STH benzene for hromatogr. (3 ml)

STH benzene for hromatogr. (3 ml)

Pure substances for chromatography are intended for qualitative elution analysis, and also for graduation of chromatographs in case of lack of the corresponding GSO, or non - obligation of their use. In these purposes can be used as in pure form, and as a part of independently prepared calibration mixes. Samples are delivered in glass ampoules 3 ml.

Expiration date of copies — 1 year.

• Appearance — colorless transparent liquid
• Mass fraction of the main substance, % , not less — 99,8
• Index of refraction (20 °C, 589 nanometers) — 1,5009 - 1,5013
• Mass fraction of water, % , no more — 0,02