3-Hydroxybenzaldehyde (3-Hydroxybenzaldehyde)

Bargaining 09-26 18:07 Update

Inquiry

Whatsapp:
+86 19117288062

Contact person：李越

Phone： +86 19117288062

3-Hydroxybenzaldehyde

Warehouse

Services Merchant Delivery

Payment Method T/T ; L/C ;

Shipping Fee Place of delivery： Need to ask for quotation with the seller

Specification weight

Total Selected{{ form.amount }}Pieces {{ form.amount }} Total￥{{ form.price * form.amount }}

m-Aldehydophenol
3-Hydroxybenzaldehyde
MHB
3-monohydroxybenzaldehyde
3-hydroxy-benzaldehyde
meta-hydroxybenzaldehyde
m-hydroxybenzaldehyde
benzaldehyde-3 OH
Benzaldehyde, 3-hydroxy-
m-Hydroxybenzaldehyde
m-Formylphenol
m-hydroxy-benzaldehyd
3-FORMYLPHENOL
hydroxybenzaldehyde
3-hydroxy-benzaldehyd

+Expand -Stow

100-83-4

C7H6O2

122.121

29124900

Information View:

Chinese

English

Nature Description

Colorless or light yellow crystalline solid. Melting point 103-104 °c, boiling point 240 °c, 191 °c (6.7kPa). Slightly soluble in water, soluble in hot water, ethanol, acetone, ether and benzene. It can sublimate and cannot be distilled by steam.

191oC(50MMHG)

101-105oC

可溶

Product Applications

M-hydroxybenzaldehyde is used as the intermediate of fine chemicals such as medicine, dye, bactericide and photographic emulsifier.

Production method

Using M-nitrobenzaldehyde as raw material, there are two methods for preparing M-hydroxybenzaldehyde. 1. It is obtained by the addition, reduction, diazotization and hydrolysis of M-nitroformaldehyde. Dissolve sodium bisulfite in water, add M-nitrobenzaldehyde, and stir to dissolve at 50℃ to obtain adduct. The adduct is present in calcium carbonate and refluxed with ferrous sulfate for 3 hours to reduce to Amino. Cool the reducing liquid to below 15℃, add sodium nitrite solution Dropwise, and then hydrolyze at 100-110 ℃ to obtain m-hydroxybenzaldehyde. The finished product can be obtained by decolorizing activated carbon and recrystallizing with water. 2. It is obtained by reduction of M-nitrobenzaldehyde by stannous chloride, and then by diazotization and hydrolysis. Mix powdered stannous chloride dihydrate with hydrochloric acid into a solution, cool to 5℃, and add M-nitrobenzaldehyde. After slowly warming up to 25-30 ℃, the temperature rises rapidly. When it rises to 100 ℃, it is cooled and stirred vigorously to obtain an orange paste. Add concentrated hydrochloric acid to form a suspension, slowly add sodium nitrite aqueous solution under stirring, and control the temperature at 4-5℃. After addition, stir for 1H. Cool the crystallization, filter out diazonium compound, add it to boiling water for hydrolysis, and decolorize with activated carbon. Filter while hot, cool and crystallize to obtain the finished product.