Microcrystalline Cellulose Tribenzoate

As early as 1969, Safanova and Klenkova had described the heterogeneous benzoylation of microcrys-talline cellulose. Rimbock et al. later described a method for preparing this material using an ultrasonic field to accelerate the reaction. Nowadays, a methanol-water solution containing about 40% of the pre-swollen material is commercially available.

Comparable with CTA, different solvents or solvent combinations also cause different degrees of swelling of this material. Dichloromethane or tet-rahydrofuran cannot be used as the eluent because tribenzoylcellulose is soluble in these solvents.

With microcrystalline cellulose tribenzoate, a stationary phase for chromatographic enantiomer separations has been introduced, which allows the resolving of different classes of organic compounds.

Cellulose tribenzoate, compared to some other types of chiral stationary phases, offers the advantage that, besides analytical separations, preparative work can also be performed without a great deal of effort.

Solar Panel Basics

Solar Panel Basics

Global warming is a huge problem which will significantly affect every country in the world. Many people all over the world are trying to do whatever they can to help combat the effects of global warming. One of the ways that people can fight global warming is to reduce their dependence on non-renewable energy sources like oil and petroleum based products.

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