Anisic aldehyde

Catalog Number	ACM123115-6
CAS Number	123-11-5
Structure
Synonyms	p-Anisaldehyde
IUPAC Name	4-Methoxybenzaldehyde
Molecular Weight	136.15
Molecular Formula	C8H8O2
Canonical SMILES	COC1=CC=C(C=C1)C=O
InChI	InChI=1S/C8H8O2/c1-10-8-4-2-7(6-9)3-5-8/h2-6H,1H3
InChI Key	ZRSNZINYAWTAHE-UHFFFAOYSA-N
Boiling Point	248 °C (lit.)
Melting Point	-1 °C
Flash Point	116°C
Purity	98%
Density	1.121 g/ml
Appearance	Colorless to light yellow liquid
Storage	Store below +30 °C
Assay	0.99
Exact Mass	136.052429494
Hydrogen-Bond Acceptor Count	2
Hydrogen-Bond Donor Count	0
Monoisotopic Mass	136.052429494
Packaging	1 kg
pH	7
Refractive Index	1.571-1.574
Rotatable-Bond Count	2
Topological Polar Surface Area	26.3 Ų

Case Study

Effect of p-anisaldehyde on Tin-Silver Alloy Electrodeposition

Kondo, T., Obata, K., Takeuchi, T., & Masaki, S. (1998). Plating and surface finishing, 85(2), 51-54.

It was found that adding certain aminaldehyde reaction products to a tin-silver alloy electroplating bath containing pyrophosphate and iodides as chelating agents resulted in a mirror-like, bright coating. Primary or secondary fatty amines or their salts, such as 2-diethylaminohydroxymethyl-1,3-propanediol, ethylamine, hydroxylamine, monoethanolamine, diethanolamine, N-methyl ethanolamine, and 2-chloroethylamine, were effective amines. Aromatic aldehydes, such as salicylaldehyde, o-vanilline, m-nitrobenzaldehyde, p-anisaldehyde, and p-hydroxybenzaldehyde, were the effective aldehydes.
The figure shows the effect of the brightener on the appearance of the coating surface. The brightener not only made the coating surface finer in texture but also completely suppressed the formation of dendritic deposits. The best effect of the brightener was achieved with a concentration of 0.01-0.02 mol/L (calculated as aldehyde).

Effect of Vanillin and Anisaldehyde Additives on ZnCo Electrodeposition

Ortiz-Aparicio, José Luis, et al. Journal of Applied Electrochemistry 41.6 (2011): 669-679.

The effects of vanillin and anisaldehyde on the electrodeposition of zinc-cobalt alloy on AISI 1018 carbon steel were studied in an alkaline gluconate-zincate electrolyte.
When 5 mM vanillin was added to the bath, a reduction peak, Ic, was observed. The peak current density was similar to that obtained without organic additives, indicating that vanillin had minimal influence on the electrodeposition process. In the voltammogram (line b), a small signal, IIc, appeared before peak Ic, corresponding to the deposition of cobalt or a cobalt-rich alloy. A prominent reduction peak, Ic, appeared at Ep(Ic) = -1.602 V. At more negative potentials, around -1.75 V vs SCE, a crossover was observed during the reverse scan, suggesting the presence of a catalytic step. This may be due to intermediates formed by vanillin during the electrochemical reduction process, which can promote the hydrogen evolution reaction (HER). Upon scanning toward positive potentials, an oxidation peak appeared, with peak IVa still observable.
On the other hand, with the addition of anisaldehyde to the bath (line c), the reduction behavior changed significantly. The additive reduced the intensity of the small peak IIc, partially suppressing Co(II) reduction. A very small peak, Ic, was observed, while a second reduction peak, IIIc, appeared at more cathodic potentials. This suppression is characteristic of many organic additives, suggesting that adsorbed molecules covered part of the active surface, requiring larger potentials to discharge the metal at peak IIIc. Based on these results, anisaldehyde increased the overpotential for ZnCo deposition more effectively than vanillin.

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