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DAHNET-7688 hydrogen peroxide stabilizer Introduction (bleach accelerator)
DAHNET-7688 is a widely used in DIP / APMP / BCTMP / TMP pulping process and textile dyeing and finishing industry H2O2 protective agent.

Properties:
Appearance: light yellow liquid
Active ingredients: " 29%
Solubility: soluble in cold water
PH: 8.5-10.5

Compared with similar products
7688 pairs of systems containing a large amount of the effect of iron is more significant, generally hydrogen peroxide bleaching is carried out under alkaline conditions , pH of the bleaching solution is 10-11 , when the actual presence of iron ions to ferric hydroxide colloid .7688 colloidal form adsorption is unmatched by other products .

Mechanism
Since 7688 is a non-toxic organic acid compounds extracted from plant seeds , not only environmentally friendly, but also a strong chelating power under high-humidity conditions and a strong base to achieve the best stability , a high pH- buffering capacity .
In 7688 , while improving the degree of bleaching can significantly reduce the amount of hydrogen peroxide
H2O2 requires the use of certain basic conditions , the reaction is as follows :
H2O2 + OH-= HOO-+ H2O
Increased oxidative capacity , while also increasing the possibility of the following reversible reaction ,
OOH-+ H2O2 = OH-+ H2O + ? O2
Heavy metal ions by contacting the peroxide or a hydrogen peroxide decomposing enzyme ,
H2O2 = H2O + ? O2
Specialty
Instead of hydrogen peroxide stabilizer prior to use, and reduces the amount of sodium silicate, hydrogen peroxide plays a role in protecting and promoting bleaching.
Used in the textile dyeing and finishing industry, can adapt to changes in different materials, keeping the bleaching effect while protecting and enhancing the feel of the fiber.
Add a small amount more clean water systems can reduce COD.
When used, hydrogen peroxide can be stabilized to improve the bleaching efficiency

Application
Usage: When DAHNET-7688 in accordance with generally hydrogen peroxide can bleach, using the same method.
Dosage: Textile dyeing and finishing processes: the amount of hydrogen peroxide 0.2% -0.4% (100% hydrogen peroxide)
Deinking pulp :0.2-0 .8 kg / T dry pulp
Other pulping process :1-2 .5 kg / T dry pulp

Performance Test Case:
Test solution: H202 (35%) 10g / l
NaOH (100%) 1.5g / l
DAHENT-7688: 0, 0.5g / l, 1.5g / l, 3g / l
PH: 11
Temperature: room temperature (35 ℃), other (95 ℃)
Time :0-60 minutes
 
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