BRAND NAME：  WANOX 323

ANTIOXIDANT-323 is a highly-efficient and multi-functional auxiliary agent for rosin and rosin resin. The  performance is identical with similar foreign products, such as ETHANOX 323 and Tackirol AP. It can replace similar imported products.
 

1. Chemical Components and Molecular Formula
Its main chemical component is Nonylphenol disulfide oligomer. The structural formula is as follows:

R= C9 alkyl, n＝1～3, x＝1～3
 

2. Physical Properties of the Product

3. Performance and Purpose
ANTIOXIDANT-323, which is excellent in anti-oxidation, subtractive color (bleaching), disproportionation and anti-crystallization, is used in the manufacturing of light-colored rosin, disproportionated rosin, rosin resin and deep processing.
1. The effects of anti-oxidation and color-fade of rosin and rosin resins (such as Glycerol ester of rosin, rosin pentaerythritol ester and malic acid resins) can be improved by adding ANTIOXIDANT-323 with the amount of 0.2% to 0.3%, causing the color to improve with the subtractive effect achieving 2 to 3 units in the Gardner color scale.
2. Disproportionation of rosin: ANTIOXIDANT-323 is an efficient catalyst for the disproportionation of rosin. It converts instable conjugated double bond in the rosin molecule into stable conjugated double bond with an aromatic ring structure, which means to convert the abietic acid into dehydroabietic acid.
The dosage of ANTIOXIDANT-323 in the process is 0.1% to 0.3%, and optimum amount is 0.2%. Precious metals (such as platinum, palladium) used as disproportionation catalysts could be expensive. ANTIOXIDANT-323 is an ideal substitute with good quality and low costs.
3. Anti-crystallization of rosin: Rosin is a non-crystalline transparent solid, but it tends to crystallize. Crystallization of rosin causes a reduction in rosin’s transparency and solubility, affecting its usage. Adding 0.2% ANTIOXIDANT-323 to the rosin can improve its anti- crystallization performance.
4. Usage Method
Antioxidant subtractive color agent ANTIOXIDANT-323 is a viscous liquid at room temperature. In industrial applications, it is recommended to preheat the packing drum to 70 to 80℃ to facilitate operations.
5. Packaging and Transportation
The product is packaged in 200-liter sealed iron drum. Inversion is forbidden during transportation. Handle with care. 。
WANOX 323 belongs to Zibo Wanke Chemical Co,, Ltd. all，It is equivalent to the following antioxidant:  “ ETHANOX 323”  “TACKIROL AP”