Products
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Sodium o-Sulfonate Benzaldehyde
For the synthesis of fluorescent whitening agent CBS, triphenylmethane dye and mothproofing agent N
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O-toluenenitrile
Used as the main raw material for the production of fluorescent whitening agents, and can also be used in the dye, medicine, rubber and pesticide industries.
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Ophthalic Acid
The preparation method is that the o-xylene is continuously oxidized with air in the presence of a cobalt naphthenate catalyst at a reaction temperature of 120-125°C and a pressure of 196-392 kPa in an oxidation tower to obtain a finished product.
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O-methoxybenzaldehyde
From salicylaldehyde by methylation reaction with dimethyl sulfate. Mix 3kg of sodium hydroxide into a 30% aqueous solution, add 12.2kg of salicylaldehyde and 80L of water under stirring, and heat to boiling. Slowly add 12.9kg of dimethyl sulfate, keep the reaction solution refluxed for about 3h after adding, continue to reflux for 2-3h following Chemicalbook…
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O-Nitro-p-cresol
This product is an organic intermediate. Used in the production of dyes, fluorescent whitening agent DT, herbicides, etc.
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O-Nitro-p-tert-butylphenol
After reduction, it can be used to make a series of high-grade optical brightener agent, such as optical brightener agent OB.
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Optical Brightener BA
It is mainly used for the whitening of paper pulp, surface sizing, coating and other processes. It can also be used for the whitening of cotton, linen and cellulose fiber fabrics, and the brightening of light-colored fiber fabrics.
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Fluorescent Brightener BAC-L
Acrylic fiber chlorinated bleaching processing technology Dosage: fluorescent whitening agent BAC-L 0.2-2.0% owf sodium nitrate: 1-3g/L formic acid or oxalic acid to adjust pH-3.0-4.0 sodium imidate: 1-2g/L process: 95-98 degrees x 30- 45 minutes bath ratio: 1:10-40
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Optical Brightener BBU
Good water solubility, soluble in 3-5 times the volume of boiling water, about 300g per liter of boiling water and 150g in cold water. Not sensitive to hard water, Ca2+ and Mg2+ do not affect its whitening effect.
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Fluorescent Brightener CL
Good storage stability. If it is below -2℃, it may freeze, but it will dissolve after heating and will not affect the use effect; Compared with similar products, it has the same light fastness and acid fastness;
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Optical Brightener MST
Low-temperature stability: long-term storage at -7°C will not cause frozen bodies, if frozen bodies appear below -9°C, the effectiveness will not decrease after a little warming and thawing.
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Optical Brightener NFW/-L
For reducing agents, hard water has good stability and is resistant to sodium hypochlorite bleaching; This product has average washing fastness and low affinity, which is suitable for pad dyeing process.
