The N[O.sub.3.sup.-], AC, and tobacco were added separately in the vacuum desiccators
stored at 45[degrees]C for 24 h.
The porcelain bowl had been dried first at a temperature of 550[degrees]C for about 1 hour, then desiccate in desiccators
for 30 minutes and scale up to constant weight (A).
After cooling the crucibles in desiccator
, crucibles were weighed containing the fiber residue and the celite nearest to 0.1mg (celite bed had been formed in previously tarred crucibles using 15ml of 78%ethanol).
Finally, the dried materials as deoiled asphalt were mechanically crushed into fine powder, labeled deoiled asphalt, and kept under dry condition in desiccators
. All chemicals used in the study were in AR grade.
Standard product lines include modular clean rooms, pass-through chambers, desiccators
, glove boxes, laminar flow benches, exhaust fume hoods, and clean room and gowning room furnishings.
AIOU has a well established laboratory with all necessary laboratory equipments including Weighing Balances, Dissolved Oxygen, Conductivity and pH Meters, Incubator, Spectrophotometer, Furnace, Hot Air Oven, Vacuum Desiccators
etc in addition to the common facilities for field oriented practical work.
The tubes were kept in desiccators
containing 10% KOH to maintain 85-90% humidity.
Veneer moisture conditioning chambers consisted of plastic desiccators
(height 311 mm, flange diameter 225 mm, Fischer Scientific Company, Pittsburgh, Pennsylvania) with a 12.5-mm square cooling fan (RadioShack, Fort Worth, Texas) suspended on the desiccators
' perforated plastic platform (divider) on four stainless legs.
The scientists placed the puree powder into vacuum desiccators
containing phosphorus to create a totally dried atmosphere.
Terra manufactures high-value modular clean rooms, desiccators
, glove boxes, laminar flow and exhaust fume hoods, clean room work benches and furnishings, wet processing stations, and related equipment.
To aid the drying process, some desiccators
are designed to hold a vacuum.
Sillifant hoped to improve on the other chemical-free desiccators
the direct-burn gas type - which he regards as inefficient and expensive.