Introduction of bromopyrrolonitrile

  It is a metal free antifouling agent, which is used as antifouling coating for ship hull or other marine structures
The product has a wide range of activities against organisms contaminated by hard shell and soft invertebrates
Due to the chemical and physical stability, low water solubility and leaching of its coatings, this product containing antifouling paint can usually specify the dry dock interval of many years, which is comparable to that of copper based products
essential information:
Common name (ISO): bromopyrrolonitrile
English Name: 4-bromo-2 - (4-chlorophenyl) - 5 - (trifluoromethyl) - 1h-cylinder-3-carbonitrile
CAS Name: 1H - pyrrole-3-carbonitrile, 4-bromo-2 - (4-chlorophenyl) - 5 - (trifluoromethyl)
CAS No
: 122454-29-9
Molecular formula: c12h5brclf3n2
Molecular weight: 349
5
 
Chemical and physical properties:
Appearance: white to off white powder
Purity (chromatography): minimum 95
0% w / W
Water content (Karl Fischer titration): up to 0
5% w / W
Particle size distribution (laser diffraction) D50: 4
0-10
0 & micro; m; D99 max
25
0 & micro; m
Oil absorption value (ISO 787-5): 28ml / 100g
Density (20 ℃): 1
714 g/ml
Air pressure (20 ℃): 1
9 x 10 - 8PA; Air pressure (25 ℃): 4
6 x 10-8 Pa, 25° C
 
Separation constant (20 ℃): 7
08 PKA
ph(22℃)  (0
1% w / V dispersed in distilled water): 5
16
Solubility in water and organic solvents
Solubility in water
Column elution solubility, mg / L, 20 DEG; C
Distilled water (pH 4
9) 0
17
Seawater pH 16
0
Organic solvent solubility
Solubility, g / L, 20 DEG; C
acetone
ethyl acetate
methanol
Heptane
xylene
Mechanical stability and compatibility
This product is incompatible with adhesives, resins, pigments, fillers, solvents or additives commonly used in antifouling paints
This product is easy to hydrolyze and photolysis in dilute solution
However, the test shows that the product can be used in water-based antifouling coatings without any stability problems
Photolysis of the product usually does not occur in colored coating systems

thermal stability
This product has good thermal stability
In dynamic differential scanning calorimetry (DSC), there is only melting (& plusmn; 249 & ordm;) in an open atmosphere Observe and endothermic decomposition
In dynamic DSC, run a large temperature rise measurement under closed conditions from & plusmn; 230º (325 J / g), melt at temperature rise

quality guarantee period
If stored at normal temperature, the initial shelf life of this product technology is 5 years in the original sealed container

Antifouling coating formula
This product is suitable for different types of antifouling paints, including traditional rosin based loss controlled polymer (CDP) coatings and self polishing copolymer (SPC) systems

It is recommended to use this product with a soft dirt agent to ensure complete protection against hard and soft dirt

Recommended use level
The effective use level of this product in copper free antifouling coatings is usually 4% to 6% (wet paint according to the total formula)
Alternatively, the product can be used in combination with copper based biocide to reduce copper content without sacrificing performance, or improve the performance and / or service life of copper based products

advantage:
Metal free antifouling agent
• The low use concentration provides a cost-effective alternative to copper based deodorant
• Broad spectrum control of microorganisms in hard dirt
• Long term efficacy
• Suitable for marine and freshwater environments
• It decomposes rapidly in the aquatic environment
• It will not cause galvanic corrosion, especially suitable for metal shells including aluminum
• Provide flexibility in coating formulation, including bright color and better color retention, reducing VOC and water-based coatings