Bronopol CAS 52-51-7 (INN) is an organic compound that is used as an 
antimicrobial. It is a white solid.
Bronopol was invented by The Boots Company PLC in the early 1960s and first applications were as a preservative for pharmaceuticals. Owing to its low mammalian toxicity (at in-use levels) and high activity against bacteria (especially the troublesome Gram-negative species),bronopol became popular as a preservative in many consumer products such as shampoos and cosmetics. It was subsequently adopted as an antimicrobial in other industrial environments such as paper mills, oil exploration and production facilities, as well as cooling water disinfection plants.
Specification
| Items |
Bacterial grade |
Cosmetic grade |
30% Solution |
| Appearance |
White Crystalline Granule |
White Crystalline Granule |
Clear slight yellow liquid |
| Main Content |
99.0-101.0% |
99.0-101.0% |
30% |
| Melting Point |
126.0----131.0 degree |
126.0----131.0 degree |
1.23-1.33 |
| Moisture |
0.5% |
0.5% |
- |
| PH |
5.0-7.0 |
5.0-7.0 |
3.7-6.7 |
| Solubility Test (20%Water Solution) |
Clear or almost clear solution |
Clear or almost clear solution |
- |
| Appearance of Solution (20% in CH3OH) |
Clear or almost clear solution |
Clear or almost clear solution |
- |
| Impurity% |
0.3 |
0.3 |
- |
| Bromate color |
-- |
Do not appear blue in 5 minutes |
- |
| Shelf life |
2 years |
2 years |
6 months |
Application
- Preservative for pharmaceuticals;
- Preservative in shampoos and cosmetics;
- As antimicrobial in paper mills, oil exploration;
- Used in cooling water disinfection system.
Packing
Solid: 25kg/bag or drum; 500kg/bag
Solution: 1000kg/IBC, 20IBC/20GP; 200kg/HDPE drum, 80 drums/20GP
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