PRODUCTS

DOWICIL QK-20

CAS Number: 1022-01-2
European Community (EC) Number: 233-539-7
IUPAC Name: 2,2-dibromo-2-cyanoacetamide

DOWICIL QK-20 is a broad spectrum biocide that offers protection against microbial growth in a variety of water-based products and applications, including adhesives, paints, pulp, paper, inks, latex, and textiles, as well as products for agriculture,and building and construction industries.
DOWICIL QK-20's unique ability to remain highly effective over a broad pH range (2 to 12.5) enables easy elimination of several process steps.
DOWICIL QK-20 is excellent in-can preservatives and in-process biocides and are highly effective at low concentrations and compatible with many formulations.

In finished products, DOWICIL QK-20 can be used effectively in combination with long-term preservatives to reduce the bio-burden on the long-term preservatives and minimize the likelihood of organism tolerance.
This can lower the changes for field failure, product recall, product rework, and downtime.

DOWICIL QK-20 also serves as a fast-acting, low cost preservative for aqueous formulations such as adhesives where short term protection ranging from several days to several weeks is needed.

The compound 2,2-dibromo-3-nitrilopropionamide (DBNPA) is the active ingredient in DOWICIL QK-20.

DOWICIL QK-20 is a fast-acting, formaldehyde-free biocide that is ideal for reducing microbiological contamination in raw materials or products such as adhesives and caulks.
DOWICIL QK-20 provides broad-spectrum control of bacteria, fungi, and yeast.
DOWICIL QK-20 can be used effectively in combination with long-term preservatives to reduce the bio-burden and minimize the likelihood of organism tolerance.
DOWICIL QK-20 lowers the chances for field failure, product recall, product rework, or downtime.
DOWICIL QK-20 offers good compatibility and prevents contamination problems without shutting down or delaying production and without undesirable effects on your finished product.
DOWICIL QK-20 exhibits a half-life of about 9 hours.

DOWICIL QK-20 is 2,2-dibromo-3- nitrilopropionamide based fast-acting, broad-spectrum biocide.
DOWICIL QK-20 provides broad-spectrum control of bacteria, fungi, and yeast.
DOWICIL QK-20 acts as an excellent biocide for rapid decontamination and preservation enhancement.
DOWICIL QK-20 is recommended for paints, coatings, latex, inks, colorants, mineral slurries and eletro-deposition.

DOWICIL QK-20 Applications:

-In-process “house-keeping” applications
-Incoming raw materials
-Process water/make-up recycle water
-Combination or supplemental short-term preservative for finished products
-Aqueous paints and coatings
-Caulk
-Waxes and polishes
-Detergents and cleaners
-Resin emulsions
-Latex, Sizing, Adhesives
-Slurries, Inks, Surfactants

Problems Solved:
-Process and equipment contamination
-Bacterial and fungal spoilage
-Contaminated raw materials and finished products
-Corrosion caused by bleach and chlorine cleaning

DOWICIL QK-20 is an industrial hygiene biocide that is based on 20% active 2,2-dibromo-3-nitrilopropionaminde (DBNPA).
DOWICIL QK-20 offers immediate action to kill bacteria, fungi, and algae for use in industrial hygiene disinfection, rapid decontamination, and clean-up raw materials and fouled solutions.

A fast-acting, broad-spectrum biocide for treating raw materials, processing water, and contaminated products

Physical and Chemical Properties:

Active ingredient:
The compound 2,2-dibromo-3-nitrilopropionamide (DBNPA) is the active ingredient in DOWICIL QK-20 Antimicrobial.

Chemical name:
2,2-dibromo-3-nitrilopropionamide

Active Ingredient: 2,2-dibromo-3-nitrilopropionamide
Percent Active Ingredient: 20%
Inert Ingredients: Polyethylene glycol/water
Color: Clear to amber
Appearance: Liquid
Odor: Low, mildly antiseptic
Freezing Point: About -50°C (per ASTM D97)
Pour Point: About -45°C (per ASTM D97)
Free Flowing: About -30°C (per ASTM D97)
Freeze-Thaw Stability: Passed 7 cycles at -15° to +20°C
Boiling Point: >120°C for solution, but active ingredient decomposes
Specific Gravity: 1.24-1.27 g/mL @ 23°C
Miscibility: Miscible with water in all proportions
Vapor Pressure (DBNPA): 2 x 10-5 mmHg @ 25°C
Flash Point: None detected (COC)
Partition Coefficient: P=0.1 for mineral oil/water
Storage Stability:
Analysis shows that 95% of the original concentration of the active ingredient in DOWICIL QK-20 is maintained when stored in appropriate containers after 9 months.

DOWICIL QK-20 Antimicrobial is a fast-acting, broad-spectrum biocide that is ideal for reducing microbiological contamination in raw materials or products such as aqueous paints and coatings, polymers, slurries, adhesives, latex and resin emulsions, sizing, caulk, process water and specialty industrial products including inks, polishes, waxes, detergents, and cleansers.
Many manufacturers who use biocides for in-can preservation of finished products use the same biocide to treat stored raw materials, wash water, recycle water, and contaminated finished product.
Although long-term preservatives may eventually get the job done, they may take too long to work—resulting in costly production delays.
In addition, the cost of long-term preservatives can be quite high.

DOWICIL QK-20 Antimicrobial quickly and economically cleans up these potential sources of contamination without requiring you to shut down or delay production.
In finished products, DOWICIL QK-20 can be used effectively in combination with long-term preservatives to reduce the bio-burden on the long-term preservative and minimize the likelihood of organism tolerance.
This can lower the chances for field failure, product recall, product rework, and downtime.
In some cases overall preservative costs may also be reduced.
DOWICIL QK-20 also serves as a fast-acting, low cost preservative for aqueous formulations such as adhesives where short-term protection ranging from several days to several weeks is desired.
When liquid raw materials such as latex and slurries are stored in bulk tanks, sometimes a heel of material can remain in the tank and become a source of contamination.
DOWICIL QK-20 offers a fast, economical way to clean up these stored materials and provide short-term protection.

Fast, broad-spectrum antimicrobial action:
DOWICIL QK-20 Antimicrobial is a formulation containing 20% of the active ingredient 2,2-dibromo-3- nitrilopropionamide, commonly referred to as DBNPA.
Effective at low concentrations, DOWICIL QK-20 provides broad-spectrum control of bacteria, fungi, and yeast.
DOWICIL QK-20 is completely miscible with water and easily dispersed upon introduction into your system.
Effective control is often achieved within minutes.

Decomposition:
In aqueous environments, DOWICIL QK-20 decomposes quickly.
Ultimately, only carbon dioxide, ammonia, and bromide ion remain as end products.
The entire process may take place with a half-life of less than one-half hour, depending on system conditions.
The instantaneous antimicrobial activity of DOWICIL QK-20, combined with rapid chemical breakdown, presents one of the most cost-effective ways of eliminating microbiological contamination with diminished environmental concern and effect on the final product.
DOWICIL QK-20 typically yields a 99.999 percent kill before it degrades sufficiently to lose effectiveness.

Excellent compatibility with formulation components and other preservatives:
DOWICIL QK-20 Antimicrobial is compatible with formulation components and both oxidizing and nonoxidizing preservatives except for tetrahydro-3,5, dimethyl-2H-1,3,5-thiadiazine-2-thione.
Excellent formulation compatibility means that you can solve or prevent contamination problems without shutting down or delaying production and without undesirable effects on your finished product.
DOWICIL QK-20 is also formaldehyde-free.

Please note that the active ingredient in DOWICIL QK20 Antimicrobial will react with and may be inactivated by strong reducing agents and/or nucleophilic reagents.

Conveniently packaged and easy to use:
DOWICIL QK-20 Antimicrobial is available in 5-gallon pails, 55 gallon drums, and <275-gallon one-way tote bins.
The 5-gallon pails and 55-gallon drums are all polyethylene, providing the advantages of low weight, durability, and easy disposal.
They are also equipped with vented bungs, which vent the small amount of carbon dioxide formed during storage and make pouring more convenient by allowing incoming air to displace outgoing liquid.
DOWICIL QK-20 Antimicrobial is completely miscible with water and easily dispersed upon introduction into your system.
DOWICIL QK-20 is a skin irritant and workers should always use safe handling procedures and appropriate protective equipment.

SYNONYMS:
2,2-DIBROMO-2-CYANOACETAMIDE
10222-01-2
Dibromocyanoacetamide
2,2-Dibromo-3-nitrilopropionamide
Dbnpa
Acetamide, 2,2-dibromo-2-cyano-
2-Cyano-2,2-dibromoacetamide
XD-7287l Antimicrobial
2,2-Dibromo-2-carbamoylacetonitrile
Dibromocyano acetic acid amide
Dibromonitrilopropionamide
XD-1603
7N51QGL6MJ
NSC-98283
Caswell No. 287AA
NSC 98283
Dowicil QK 20
HSDB 6982
XD 7287L
EINECS 233-539-7
UNII-7N51QGL6MJ
EPA Pesticide Chemical Code 101801
BRN 1761192
2,2-dibromo-2-cyano-acetamide
2,2-Dibromo-3-nitrilopropanamide
Acetamide, 2-cyano-2,2-dibromo-
Cyanodibromoacetamide
2,2-dibromo-3-nitrilopropion amide
DBNP
DSSTox_CID_12361
DSSTox_RID_78926
NCIOpen2_006184
DSSTox_GSID_32361
SCHEMBL23129
3-02-00-01641 (Beilstein Handbook Reference)
Acetamide,2-dibromo-2-cyano-
2-Cyano-2,2-dibromo-Acetamide
CHEMBL1878278
DOW ANTIMICROBIAL 7287
DTXSID5032361
DIBROMOCYANOACETAMIDE [INCI]
NSC98283
ZINC1638458
2,2, Dibromo 3-Nitrilopropionamide
Tox21_300089
MFCD00129791
2,2-Dibromo-2-cyanoacetamide, 9CI
2, 2-Dibromo-2-carbamoylacetonitrile
2,2-Dibromo-2-cyanoacetamide, 96%
AKOS015833850
2,2-bis(bromanyl)-2-cyano-ethanamide
NCGC00164203-01
NCGC00164203-02
NCGC00253921-01
AS-12928
CAS-10222-01-2
DB-027512
CS-0144768
D2902
DIBROMO-3-NITRILOPROPIONAMIDE, 2,2-
FT-0612090
2,2-Dibromo-3-Nitrilo propionamide (DBNPA)
22D012
H11778
2,2-DIBROMO-3-NITRILOPROPIONAMIDE [HSDB]
A800546
Q-102771
Q5204411
dbnpa; 2,2-dibromo-2-cyanoacetamide; 2,2-dibromo-2-carbamoylacetonitrile; 2,2-dibromo-3-nitrilopropionamide; dbnpa