| Message: | DBNPA 20% water treatment microbiocide is an aqueous formulation containing a 20% w/w concentration of DBNPA(2,2-dibromo-3-nitrilopropionamide) which is a broad spectrum, fast acting control of bacteria,fungi,yeast and algae, also known as DBNPA – a non-Oxidizing and highly effective biocide with proven performance in the past 5 decades. DBNPA 20% is similar with famous brand AQUCAR RO-20 and Aqucar DBNPA 20% etc.
1. Active matter
DBNPA(2,2-dibromo-3-nitrilopropionamide)
1.1 CAS NO.: 10222-01-2
2. Specifications
2.1 Appearance (20°C): colorless to yellowish transparent liquid
2.2 pH: 2.0 – 5.0
2.3 Assay (Loss on drying): 19 – 21%
2.4 Density kg/m3 1.150-1.250
Active Assay :20%
5. Applications and Use
5.1 – Recirculating water cooling towers
Intial Dose: 0.05%-0.10%
Subsequent slug doses: 0.01-0.03%
5.2 – Pulp,paper and paperboard mills
Item Dose ML per ton of paper dry basis
Heavily fouled systems Dose after boiling out 53.0-128.7
Moderately fouled system Initial dose 128.7-189.3
Subsequent dose 53.0-128.7
Slightly fouled systems Initial dose 53.0 to 128.7
Subsequent dose 53.0 to 128.7
Heavily fouled systems should be cleaned before treatment is begun.
5.3 – Enhanced oil recovery systems
Item Dose ppm base on system volume
Intermittent of Slug method Initiala dose 10 to 80
Subsequent dose 10 to 80
Continuous feed method Initialb dose 10 to 80
Subsequentc dose 1 to 15
a: Add intermittently for 4 to 8 hours per day, and from 1 to 4 times per week,or as needed depending on the severity of contamination.
b: Add continuously until the desired degree of control is achieved.
c: Add continuously or as needed to maintain control
5.4 Use with Biopolymers
Add 15-80 ppm of DBNPA 20%
6. Storage
25kg/200kg PE drum. A shelf life of 1 year is expected if material is stored in sealed original packaging. |
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