Sealable enclosures containing desiccants to preserve moisture-sensitive items
For dry boxes and cabinets, see dry box.
A vacuum desiccator (left - note the stopcock which allows a vacuum to be applied), and a desiccator (right). The blue silica gel in the space below the platform is used as the desiccant.
Desiccators are sealable enclosures containing desiccants used for preserving moisture-sensitive items such as cobalt chloride paper for another use. A common use for desiccators is to protect chemicals which are hygroscopic or which react with water from humidity.
The contents of desiccators are exposed to atmospheric moisture whenever the desiccators are opened. It also requires some time to achieve a low humidity. Hence they are not appropriate for storing chemicals which react quickly or violently with atmospheric moisture such as the alkali metals; a glovebox or Schlenk-type apparatus may be more suitable for these purposes.
Desiccators are sometimes used to remove traces of water from an almost-dry sample. Where a desiccator alone is unsatisfactory, the sample may be dried at elevated temperature using Abderhalden's drying pistol.
absorption into glycols, and absorption onto desiccants such as silica gel. A desiccator is a heavy glass or plastic container, now somewhat antiquated, used in...
suitable for these purposes. Desiccators are sometimes used to remove traces of water from an almost-dry sample. Where a desiccator alone is unsatisfactory...
Pre-harvest crop desiccation refers to the application of an agent to a crop just before harvest to kill the leaves and/or plants so that the crop dries...
Desiccation tolerance refers to the ability of an organism to withstand or endure extreme dryness, or drought-like conditions. Plants and animals living...
Desiccated thyroid, also known as thyroid extract, is thyroid gland that has been dried and powdered for medical use. It is used to treat hypothyroidism...
Degenerative disc disease (DDD) is a medical condition typically brought on by the normal aging process in which there are anatomic changes and possibly...
A dissected plateau is a plateau area that has been severely eroded such that the relief is sharp. Such an area may be referred to as mountainous, but...
Evaporated milk, known in some countries as "unsweetened condensed milk", is a shelf-stable canned cow’s milk product for which approximately 60% of the...
conditions, the new leaves do not open well, and older leaves may become desiccated; fruit also tends to be shed. The extent of cultivation in the tropics...
Potassium hydroxide is an inorganic compound with the formula KOH, and is commonly called caustic potash. Along with sodium hydroxide (NaOH), KOH is a...
process. The crucible with the sample and lid is allowed to cool in a desiccator. The crucible and lid with the sample inside are weighed very accurately...
sodium-benzophenone. Sieves offer the advantages of being safe in air and recyclable. Desiccator Humidity buffering Humidity indicator card Moisture sorption isotherm...
grain-grinding culture. Climate changes or overgrazing around 8000 BCE began to desiccate the pastoral lands of Egypt, forming the Sahara. Early tribal peoples...
Mudcracks (also known as mud cracks, desiccation cracks or cracked mud) are sedimentary structures formed as muddy sediment dries and contracts. Crack...
valleys, the same effect occurs over a rock base, leading to a barren and desiccated landscape. Antarctica is colder than the Arctic region, as much of Antarctica...
(or margarine), golden syrup, baking soda, boiling water and optionally desiccated coconut. Anzac biscuits have long been associated with the Australian...
period, the crucible containing the carbonaceous residue is cooled in a desiccator and weighed. The residue remaining is calculated as a percentage of the...
marshmallows and 15 glacé cherries, which are combined with condensed milk and desiccated coconut. The biscuits are crushed before being mixed in a bowl with chopped...
the skin became more capable of retaining body fluids and resisting desiccation. The fish's hyomandibula bone in the hyoid region behind the gills diminished...
nutrition obtained largely from airborne sources, and greater tolerance of desiccation than most other photosynthetic organisms in the same habitat. Many insects...
for Arid region safety. Arid Forest Research Institute Aridity index Desiccation tolerance Drought Humidity Vapor pressure United States Geological Survey...
Mediterranean was cut off from the Atlantic and was partly or completely desiccated over a period of some 600,000 years during the Messinian salinity crisis...
river valleys and oases, and formerly in the Aral Sea, which has largely desiccated in one of the world's worst environmental disasters. The rest is the vast...
Attrition or abrasion W (% w/w) Usage 3A A-3, K-A 3 0.60–0.68 19–20 0.3–0.6 Desiccation of petroleum cracking gas and alkenes, selective adsorption of H2O in...
extremophilic organisms in response to adverse environmental conditions such as desiccation, freezing, and oxygen deficiency. In the cryptobiotic state, all measurable...
land; their existing jointed exoskeletons provided protection against desiccation, support against gravity and a means of locomotion that was not dependent...
universities mostly had marginalized Freudian theory, dismissing it as a "desiccated and dead" historical artifact. Researchers such as António Damásio, Oliver...
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