DB 20
Quick Detail
- Place of Origin:China (Mainland)
- Minimum order:1
- KG:10
Specifications
DB20 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. DB 20 issimilarwith famous brand AQUCAR RO-20 and Aqucar DB 20 etc.
1.Active matter
DBNPA(2,2-dibromo-3-nitrilopropionamide)
2.Specifications
2.1Appearance(20°C):colorless to yellowish transparent liquid
2.2pH:2.0–5.0
2.3Assay (Loss on drying):19–21%
2.4Density kg/m3 1.150-1.250
3.Properties
3.1Odor:Low, mildly antiseptic
3.2Boiling Point:>120℃ for solution, but active ingredient
decomposesprior to boiling
3.3Vapor Pressure(DBNPA):2*10-5mmHg@25℃
3.4Solubility:soluble in waterin use of concentration
4. Key Benefits
4.1 DB 20 water treatment microbiocide is a fast-acting biocide.
4.2 DB 20 rapidly decomposes in aquatic environments with only carbon dioxide,ammonia,and bromide ions remaining as end products.
4.3 DB 20 is compatible with chlorine
4.4 DB 20 is completely miscible with water and easily dispersed upon introduction into a water system.
4.5 DB 20 is a broad spectrum antimicrobial,effectively controlling fungi,yeast,bacteria and algae.
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 | Initialadose | 10 to 80 |
| Subsequent dose | 10 to 80 | |
| Continuous feed method | Initialbdose | 10 to 80 |
| Subsequentcdose | 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 DB 20
6.Storage
25kg/200kg PE drum. A shelf life of 1 year is expected if material is stored in sealed original packaging.
