hemihydrate


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hemihydrate

[‚hem·ē′hī‚drate]
(organic chemistry)
A hydrate with a 2:1 molecular ratio of anhydrous compound to water, plaster of paris is the hemihydrate of calcium sulfate, composition CaSO4·½H2O.

hemihydrate

A hydrate which contains one-half molecule of water to one molecule of the compound; the most common such material is partially dehydrated gypsum (plaster of paris).
References in periodicals archive ?
The complete dissolution of hemihydrate into dehydrate as the plaster were set form series of interlocking of dehydrate crystal matrix (capillaries) giving the plaster the ability to absorb water after it's dry.
Our findings suggest that ammonia hemihydrate could be an important component of the mantle in ice giants, and will help improve our understanding of these frozen worlds.
Chlorogenic acid hemihydrate (CGA), (purity 97%, B21962, lot 10142590) was obtained from Alfa Aesar, A Johnson Matthey Company (Germany).
Notably, the commercially available powder form of CS is CS hemihydrate (CaSO[sub]4*1/2H[sub]2O).
01 mcm) of priori calcium-hydrosilicates, hydroaluminates and calcium sulfate dihydrate as a result of hardening of portland-cement and hemihydrate gypsum.
Canagliflozin, the active ingredient of INVBKANA, is chemically known as (1S)-1,5-anhydro-1-[3-[[5-(4-fluorophenyl)-2-thienyl]methyl]-4-methylphenyll-D-glucitol hemihydrate and its molecular formula and weight are [C.
Eco-balance features and significance of hemihydrate phosphogypsum reprocessing into gypsum binding materials, Journal of Civil Engineering and Management 15(2): 205-213.
2 Case II: Questionable 2nd Polymorphic Form Due to Lattice/Formula Match With Existing Compound--Triphenylphosphine oxide hemihydrate (TPPO * 0.
What modelling material is the powdered hemihydrate of calcium sulphate better known as?
However, it is pointed out by Sattler & Bruckner (2001) that in addition to the hemihydrate other "sub-hydrates" with crystal water contents between 1/2 and 4/5 have recently been produced and investigated crystallographically.
concurring) (applying a [section] 101 analysis to preclude the patenting of a hemihydrate even though it was man made).
Calcium sulfate hemihydrate (CSH, CaSO4 x 1/2 H2O) powders are currently being produced as a bone substitute, and many corporations such as Smith & Nephew and Wright Medical Technology are marketing self-setting, orthopedic cements based on pure CSH.