2-Hydroxybenzaldehyde(CAS#90-02-8)

2-Hydroxybenzaldehyde(CAS#90-02-8),

natureColorless or light brown transparent oily liquid with a bitter almond flavor. Not easily volatile, slightly soluble in water (11 7g] lOOg water). Dissolve in ethanol, ether, and benzene. It turns orange when exposed to sulfuric acid.

Preparation methodMix phenol with excess sodium hydroxide to prepare a phenol sodium solution, heat to 60-65 ℃, slowly add chloroform, the reaction initially turns purple and gradually turns orange red. After the reaction is complete, the excess chloroform is distilled off with steam, and the resulting sodium salicylate is neutralized with acid before being distilled off with steam.purposeSalicylaldehyde: fungicideIndustrial circulating cooling water and oilfield reinjection water are used as fungicidesUsed as a preservative and fungicide in oil and spice productsCan kill 60% of iron bacteria and 85% of sulfate reducing bacteria (concentration 50mg/L)The general dosage for water treatment is 50-100mg/LThe concentration used should be within its water-soluble range and can be directly addedSterilization effect:Iron bacteria (60%)Sulfate reducing bacteria (85%)Usage:Industrial circulating cooling water and oilfield reinjection water are used as fungicidesUsed as a preservative and fungicide in oil and spice productsIt can be directly added, and the concentration should be within its water-soluble range