Nightstands are by nature fairly small, though the height can vary substantially. A too short or too tall nightstand is both uncomfortable to use and awkward looking when placed next to a taller (or shorter) bed. Look for a bedside table thatâs within a few inches of the top of your mattress.ightstands are by nature fairly small, though the height can vary substantially. A too short or too tall nightstand is both uncomfortable to use and awkward looking when placed next to a taller (or shorter) bed. Look for a bedside table thatâs within a few inches of the top of your mattress.
Toluidine blue solution is used in testing for lignin, a complex organic molecule that bonds to cellulose fibres and strengthens and hardens the cell walls in plants.A positive toluidine blue test causes the solution to turn from blue to pink.oluidine blue solution is used in testing for lignin, a complex organic molecule that bonds to cellulose fibres and strengthens and hardens the cell walls in plants.
Substitute the hazard with a lesser risk. Substituting the hazard may not remove all of the hazards associated with the process or activity and may introduce different hazards but the overall harm or health effects will be lessened. In laboratory research, toluene is now often used as a substitute for benzene.