Litmus essence (also known as vanillin) is an organic compound, chemical name is benzaldehyde. It is a colorless to slightly yellow liquid with a strong aromatic odor, almost insoluble in water, soluble in alcohols and ether solvents.
Litmus essence is mainly used for a wide range of purposes. It can be used as a flavor and fragrance, with a taste similar to vanilla, and can also be used to prepare products such as medicine and cosmetics, as well as dyes and pesticides. Litmus has a certain antiseptic effect, so it is also commonly used in the food and beverage industry.
preparation of litmus essence method mainly has two kinds of synthesis and extraction. The synthesis method is mainly by diazotization of benzaldehyde, and then reduction, and finally get pure litmus essence. The extraction method is extracted from natural plants, common plants include vanilla and cinnamon.
As far as safety information is concerned, litmus is a relatively safe chemical. However, it has certain irritating and sensitizing properties and may cause skin and eye irritation. Therefore, it is necessary to pay attention to personal protective measures when using it to avoid direct contact with skin and eyes. In addition, litmus essence should also avoid prolonged inhalation or intake, so as to avoid adverse effects. It is best to test before use to ensure that there is no allergic reaction.