Mannitol

From Crystal growing

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   Mannitol   
Names: mannit
D-mannitol
osmitrol
manna sugar

Formula: C6H14O6
SMILES: C(C(C(C(C(CO)O)O)O)O)O
Molar mass: 182.171 g/mol
Density: 1.489 g/cm3
Crystal system: orthorhombic (α)
a=8.94 Å, b=18.41 Å, c=4.92 Åα=90°, β=90°, γ=90°
orthorhombic (β)
a=8.672 Å, b=16.875 Å, c=5.56 Åα=90°, β=90°, γ=90°
orthorhombic (γ)
a=9.33 Å, b=17.36 Å, c=4.99 Åα=90°, β=90°, γ=90°
monoclinic (δ)
a=5.08941 Å, b=18.2504 Å, c=4.91702 Åα=90°, β=118.303°, γ=90°
orthorhombic (K)
a=8.942 Å, b=18.798 Å, c=4.893 Åα=90°, β=90°, γ=90°
triclinic (hemihydrate)
a=9.8963 Å, b=10.5424 Å, c=4.7860 Åα=102.589°, β=86.092°, γ=116.079°
Shapes:
https://en.crystalls.info/w/uploads/media/Irregular_pinacoidal_prism.json
https://en.crystalls.info/w/uploads/media/Tetragonal_prism.json
https://en.crystalls.info/w/uploads/media/Needle.json

Color: colorless
Melting point: 166.1 °C439.25 K <br />330.98 °F <br />790.65 °R <br />
Decomposition point: -5 °C268.15 K <br />23 °F <br />482.67 °R <br /> (hemihydrate)
Toxicity: slightly toxic
LD50=1700mg/kg

Description

Organic compound, hexabasic sugary alcohol. Doesn't form water hydrates.

Where to buy

In pharmacy (as "Mannitol' sweetener).

Influence of temperature

When grown from hot solution, usually large amount of small crystals formes.

Influence of impurities

Addition of boric acid or growth from organic solvents such as methanol leads to changing the shape of crystal.

Storage conditions

Store in its original form or under several layers of varnish at average humidity and room temperature. Do not store in matchboxes or cotton wool and do not heat.

Solubility

Temperatureгр/100,00 гр waterгр/100,00 гр ethanolгр/100,00 гр ethanol 40%гр/100,00 гр ethanol 60%гр/100,00 гр ethanol 80%гр/100,00 гр glycerolгр/100,00 гр pyridineгр/100,00 гр isobutanolгр/100,00 гр 1-butanolгр/100,00 гр 2-butanolгр/100,00 гр tert-butanolгр/100,00 гр allyl alcohol
0°C273.15 K <br />32 °F <br />491.67 °R <br />9.420.0031.810.790.16
10°C283.15 K <br />50 °F <br />509.67 °R <br />12.05~0.01~3.28~1.37~0.32
15°C288.15 K <br />59 °F <br />518.67 °R <br />14.10.01~4.01~1.66~0.40
20°C293.15 K <br />68 °F <br />527.67 °R <br />~15.9~0.02~4.75~1.96~0.487
25°C298.15 K <br />77 °F <br />536.67 °R <br />17.730.035.482.250.550.47
30°C303.15 K <br />86 °F <br />545.67 °R <br />~20.4~0.05~8.48~2.27~1.05
40°C313.15 K <br />104 °F <br />563.67 °R <br />25.710.075~14.5~2.30~2.060.05
50°C323.15 K <br />122 °F <br />581.67 °R <br />32.070.28~20.5~2.33~3.070.04
60°C333.15 K <br />140 °F <br />599.67 °R <br />38.330.8126.52.364.080.0270.0320.093
70°C343.15 K <br />158 °F <br />617.67 °R <br />~45.9
80°C353.15 K <br />176 °F <br />635.67 °R <br />53.49
90°C363.15 K <br />194 °F <br />653.67 °R <br />60.1
100°C373.15 K <br />212 °F <br />671.67 °R <br />66.33
Soluble in aniline. Insoluble in diethyl ether.

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