p-Hydroxyanisole MEHQ

Item

Parameter

Item

Parameter

Molecular Formula

C7H8O2

CAS No.

150-76-5

Molecular Weight

124.14

Content

≥99.5 %

Boiling Point

243℃

Melting Point

54.0～56.5℃

Color (APHA)

≤ 10

Relative Density

1.55 (20/20℃)

Hydroquinone

≤0.05 %

Heavy Metals (Pb)

≤ 0.001%

Residue on Ignition

≤0.01 %

Loss on Drying

≤ 0.3 %

p-Dimethoxybenzene

Not Detected

Quality Standard

Complies with Q/3 2 0 2 1 1NCM02-2002

Properties

White flake or waxy crystals. Soluble in ethanol, ether, acetone, benzene, and ethyl acetate; slightly soluble in water.

***** Applications *****

1. Mainly used as a polymerization inhibitor for vinyl monomers such as acrylonitrile, acrylic acid and its esters, methacrylic acid and its esters, etc. Its advantage is that it does not need to be removed before use and can directly participate in polymerization. It is also used in the synthesis of antioxidants, plasticizers, and food additives (BHA).

2. An important intermediate in the fine chemical industry for pharmaceuticals, fragrances, pesticides, etc.

3. Can be used as a polymerization inhibitor for vinyl plastic monomers, UV inhibitor, dye intermediate, antioxidant, plasticizer, etc.

4. Used in the synthesis of antioxidants for edible oils and cosmetics, such as BHA (3-tert-butyl-4-hydroxyanisole).