Vanillin

From Crystal growing

Vanillin
Names:	vanillin methylvanillin 4-hydroxy-3-methoxybenzaldehyde
Formula:	C₈H₈O₃
Molar mass:	152.149 g/mol
Density:	1.056 g/cm³
Crystal system:	monoclinic a=14.049 Å, b=7.874 Å, c=15.017 Åα=90°, β=115.45°, γ=90°
Shapes:	Needle
Color:	colorless white
Melting point:	81 °C354.15 K <br />177.8 °F <br />637.47 °R <br />
Boiling point:	285 °C558.15 K <br />545 °F <br />1,004.67 °R <br />
Refractive index:	1.551
Stability:	stable
Hardness:	fragile
Toxicity:	slightly toxic LD₅₀=2000mg/kg

Description

Organic compound, aldehyde of aromatic vanillic acid. Doesn't form water hydrates.

Where to buy

Can be bought in grocery store (as "vanilla extract" - alcohol solution of vanillin).

Notes

High solubility in organic compounds leads to growing mostly polycrystals.

Solubility

TableGraph

Temperature	g/`100,00` g water	g/`100,00` g ethanol	g/`100,00` g methanol	g/`100,00` g glycerol 25%	g/`100,00` g glycerol 50%	g/`100,00` g pyridine	g/`100,00` g ethyl acetate	g/`100,00` g ethylene glycol	g/`100,00` g propylene glycol	g/`100,00` g quinoline	g/`100,00` g chloroform	g/`100,00` g transcutol	g/`100,00` g 1-butanol	g/`100,00` g 2-butanol
0°C273.15 K <br />32 °F <br />491.67 °R <br />	`~0.5`
20°C293.15 K <br />68 °F <br />527.67 °R <br />				`2.36`	`3.98`	`316`				`5.51`
25°C298.15 K <br />77 °F <br />536.67 °R <br />	`≈1.04`						`≈24.22`	`≈19.99`	`≈15.40`			`≈35.42`	`≈14.20`	`≈19.78`
29°C302.15 K <br />84.2 °F <br />543.87 °R <br />		`67.22`
30°C303.15 K <br />86 °F <br />545.67 °R <br />	`≈1.30`						`≈25.12`	`≈21.11`	`≈16.10`			`≈37.00`	`≈15.00`	`≈20.80`
35°C308.15 K <br />95 °F <br />554.67 °R <br />	`≈1.58`		`~40`				`≈26.03`	`≈22.30`	`≈16.80`		`~20`	`≈38.61`	`≈15.81`	`≈21.90`
40°C313.15 K <br />104 °F <br />563.67 °R <br />	`≈1.85`						`≈27.18`	`≈23.39`	`≈17.60`			`≈40.05`	`≈16.69`	`≈22.81`
45°C318.15 K <br />113 °F <br />572.67 °R <br />	`≈2.17`						`≈28.11`	`≈24.51`	`≈18.70`			`≈41.52`	`≈17.51`	`≈23.83`
52°C325.15 K <br />125.6 °F <br />585.27 °R <br />											`~40`
55°C328.15 K <br />131 °F <br />590.67 °R <br />			`~52`
60°C333.15 K <br />140 °F <br />599.67 °R <br />											`~60`
70°C343.15 K <br />158 °F <br />617.67 °R <br />			`~70`
75°C348.15 K <br />167 °F <br />626.67 °R <br />			`~90`
80°C353.15 K <br />176 °F <br />635.67 °R <br />	`5`

Highly soluble in acetone and diethyl ether. Soluble in benzene, carbon disulfide, petroleum ether, propylene glycol, sulfuric acid, acetic acid and naphtha.

Gallery

VanillinMircenall, reddit.comMircenallReddit.com
Growth from water solutionVanillin, Artyom Osyotr, VKontakteArtyom OsyotrVKontakte
Growth from 96% ethanolVanillin, Artem Michuda, VKontakteArtem MichudaVKontakte
Growth from 96% ethanolVanillin, Artem Michuda, VKontakteArtem MichudaVKontakte
Natural vanillin crystals of surface of vanilla sticksVanillin, Wei Zhenglin, vanillataiwan.comWei Zhenglinvanillataiwan.com
Natural vanillin crystals of surface of vanilla sticksVanillin, Wei Zhenglin, vanillataiwan.comWei Zhenglinvanillataiwan.com
Growth from water solutionVanillin, Artyom Osyotr, VKontakteArtyom OsyotrVKontakte
Growth from water solutionVanillin, Artyom Osyotr, VKontakteArtyom OsyotrVKontakte
Growth from water solutionVanillin, Artyom Osyotr, VKontakteArtyom OsyotrVKontakte
Growth from water solutionVanillin, Artyom Osyotr, VKontakteArtyom OsyotrVKontakte
Morphology of vanillin crystalsVanillin, Reddit.comReddit.com

Video

Sources

Aldehydes
Ethylvanillin (C₉H₁₀O₃) • Trioxane (C₃H₆O₃) • Vanillin (C₈H₈O₃)

Ethers
Acetylsalicylic acid (C₉H₈O₄) • Dimethyl oxalate ((CH₃)₂C₂O₄) • Ethylvanillin (C₉H₁₀O₃) • Vanillin (C₈H₈O₃) • Vanillic acid (C₈H₈O₄)

Phenols
Ethylvanillin (C₉H₁₀O₃) • Hydroquinone (C₆H₄(OH)₂) • Paracetamol (C₈H₉NO₂) • Vanillin (C₈H₈O₃) • Phenol (C₆H₅OH)

Retrieved from "https://en.crystalls.info/w/index.php?title=Vanillin&oldid=15537"