Names: alpha cyclodextrin, ring six sugar, ring malt six sugar
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Number of glucose units
|
6
|
|
Molecular
|
972
|
|
Solubility in water g/100ml at ambient temp.
|
14.5
|
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[α]D25
|
150±0.5
|
|
Cavity diameter Å
|
4.7-5.3
|
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Height of torus
|
7.9±0.1
|
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Dia. of periphery
|
14.6±0.4
|
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Vol. of cavity(approx.)Å
|
174
|
|
Cavity vol (approx.):
per mol CD. mls
per lg CD mls
|
104
0.1
|
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Crystal forms（from water）
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Hexagonal plates
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Crystallographic params.
C1-C4-C4 angle
|
119.0
|
|
φ/φº
|
166/-169
|
|
O4---O4 distance Å
|
4.23
|
|
O2---O3 distance Å
|
3.00
|
|
Crystal water wt%
|
10.2
|
|
Diffusion const.40ºC
|
3443
|
|
Hydrolysis by A. oryzae α-amylase
|
Negligible
|
|
Vmaxvalue min-1
|
5.8
|
|
Relative permittivity
|
47.5
|
|
Pk (by potentionmetry) 25ºC
|
12.3312
|
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Partial molar volumes in solution ml/mol
|
611.4
|
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Adiabatic compressidbility
|
|
|
In aqueous soln.ml.mol-1.bar-1.104
|
7.2
|
Features and application:
Has the same with b - cyclodextrins application ability, at the same time because pure alpha cyclodextrins has better water-soluble, when ℃ at 25 alpha cyclodextrins solubility for 1.27 g / 100ml canister water and and b - cyclodextrins solubility only 1.88 g / 100ml canister water. Therefore it has the larger application scope.
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Product name
|
specifications
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Packing specification
|
|
Alpha cyclodextrins
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Pharmaceutical grade, food grade and industrial grade
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500g/bag, 2kg/bag, 10kg/carton, 20kg/carton
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>>Alphabetical order
