clathrate


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to clathrate: Clathrate hydrate, Methane clathrate

clathrate

 [klath´rāt]
1. having the shape or appearance of a lattice.
2. a clathrate compound.

clath·rate

(klath'rāt),
A type of inclusion compound in which small molecules are trapped in the cagelike lattice of macromolecules.
[L. clathrare, pp. -atus, to furnish with a lattice]

clathrate

(klăth′rāt′)
adj.
1. Biology Having a latticelike structure or appearance: clathrate scales.
2. Chemistry Of or relating to inclusion complexes in which molecules of one substance are completely enclosed within the crystal structure of another.
n. Chemistry
A clathrate compound, such as methane hydrate.

clath·rate

(klath'rāt)
A type of inclusion compound in which small molecules are trapped in the cagelike lattice of macromolecules.
[L.clathrare, pp. -atus, to furnish with a lattice]
References in periodicals archive ?
Hendy, "Methane hydrates and climate change: the clathrate gun hypothesis," AAPG Bulletin, vol.
Clathrates have also captured the attention of climate scientists because they may contain ancient samples of oxygen and other gases, says glaciologist Todd A.
Again, this would be a dry process, not requiring near-surface liquid water; it could help to expose and heat clathrates, or could operate without any clathrates being present.
But this finding suggests that the clathrate source is less susceptible than recently feared," Dr Smith said.
Handa, "Compositions, enthalpies of dissociation, and heat capacities in the range 85 to 270 K for clathrate hydrates of methane, ethane, and propane, and enthalpy of dissociation of isobutane hydrate, as determined by a heat-flow calorimeter," The Journal of Chemical Thermodynamics, vol.
However, a control experi- ment using neon gas, which does not form a clathrate, ruled out those pos- sibilities.
Clathrate melting temperatures ([T.sub.m-cla]) show a range from 5.6 to 8.9[degrees]C, with corresponding salinities from 2.2 to 8.2wt.% NaCl equivalent (Figure 8(b)).
The C[O.sub.2] clathrate was melted at the temperatures of 7.1 to 7.9[degrees]C, corresponding to salinities of 4.3 to 5.6 wt.% NaCl equivalent.
For thousands of years--and, in some cases, about 1,000,000 years--huge caches of methane have lain frozen and isolated from the atmosphere, both in the northern latitude permafrost and in the frozen seafloor methane clathrate deposits, in which gas is trapped in a crystal lattice cage of frozen water.
Because water is also observed in this region, perhaps the material making up the bladed terrain is a methane clathrate. A clathrate is a structure in which a primary molecular species (say water, or H2O) forms a crystalline 'cage' to contain a guest molecule (methane or CH4, for example.).
D., "Large thermoelectric figure of merit at high temperature in Czochralski-grown clathrate," Appl.
The sample was vortexed for 60 sec, stored for 1 hour at -4.0[degrees]C, and lyophilized for 24 h to obtain the clathrate ERT/HP-betaCD.