China (Mainland)
Premiumsupplier 
- Product Details
Keywords
- 2-bromo-2-nitropropane-1,3-diol
- 52-51-7
- BNPD
Quick Details
- ProName: Bronopol 99%
- CasNo: 52-51-7
- Molecular Formula: C3H6BrNO4
- Appearance: White Crystalline Powder
- Application: As a biocide it is mainly used in diff...
- DeliveryTime: 7-10days
- PackAge: 25kg/bag or 25kg/drum
- Port: Shanghai
- ProductionCapacity: 3000 Metric Ton/Year
- Purity: ≥99%
- Storage: Keep it out of the sun ,shady,cool and...
- Transportation: by sea
- LimitNum: 25 Kilogram
- Impurities: <0.1%
- melting point: 125-131℃ （0.7Kpa）
- water content: ≤0.5%
- PH: PH5.0-7.0 （1%w/v）
- assay: 99.0%-101.0%
- Sulphated ash: NMT0.1%
Superiority
We are one the biggest factory of bronopol in China,ananual output is 3000mt.
With more than 15 years experiences of producing bronopol ,our products have been sold to Europe,USA,,South East Asia etc,it confirm to BP 2016,can be used for industry ,cosmetic,feed etc.
We have served many international companies for more than 10years ,not only have a good business ship with then but also become good friends.
High quality
Competive price
Best service
Details
Established in 2007,Taicang Liyuan Chemical Co.,ltd. is located in Taicang city with a rich cultural heritage in most developed economy area of China's Yangtze River Delta.The location of our company is superior with convenient transportation and logistics conditions,just separated by a river with Shanghai and only 40km away from Shanghai Hongqiao Airport.
We are in the business of manufacturing and supplying APIs,biocides for industrial and cosmetic applications,raw materials and intermetiates for pharmaceutical industry.
Our main products include Allantoin,Bronopol,BIT,carbohydrazide ,DBNPA etc.,which are mainly exported to Europe,USD and South East Asia.
Furthermore with state-of-art analytical equipment and stable quality of products in strictly following ISO 9001 standard ,we have become a reliable supplier for some well known multinational chemical companies for the years.
With our principal as "customer first and honesty first"and mutual beneficial relationship with more friends from abroad in near future.Highly welcome you to visit and inspect our company or discussion for potential business!
Physical and chemical properties
Appearance
Bronopol is supplied as crystals or crystalline powder, which may vary from white to pale yellow in colour depending on the grade. The yellow colouration is due to chelation of iron during the manufacturing process.
Melting point
As a pure material, Bronopol has a melting point of about 130 °C. However due to its polymorphic characteristics, Bronopol undergoes a lattice rearrangement at 100 to 105 °C and this can often be wrongly interpreted as the melting point.
At temperatures above 140 °C, bronopol decomposes exothermically releasing hydrogen bromide and oxides of nitrogen.
Solubility
Bronopol is readily soluble in water; the dissolution process is endothermic. Solutions containing up to 28% w/v are possible at ambient temperature.
Bronopol is poorly soluble in non-polar solvents but shows a high affinity for polar organic solvents.
|
Solubilities at 22–25 °C |
|
|
Solvent |
%w/v |
|
Water |
28 |
|
Methanol |
89 |
|
Ethanol |
56 |
|
Isopropanol |
41 |
|
Liquid Paraffin |
<0.5 |
Partition coefficient
Study of the solubility data clearly shows that Bronopol has a high affinity for polar rather than non-polar environments. In two phase systems, Bronopol partitions preferentially into the polar (usually aqueous) phase.
|
Partition coefficients at 22–24 °C |
|
|
Solvent Combination |
Partition Co-efficient |
|
Hexanol/Water |
0.74 |
|
Alkane|Liquid Paraffin/Water |
0.043 |
|
Chloroform/Water |
0.068 |
Stability in aqueous solution
In aqueous solutions, bronopol is most stable when the pH of the system is on the acid side of neutral. Temperature also has a significant effect on stability in alkaline systems.
Degradation
Under extreme alkaline conditions, bronopol decomposes in aqueous solution and very low levels of formaldehyde are produced. Liberated formaldehyde is not responsible for the biological activity associated with bronopol. Other decomposition products detected after bronopol breakdown are bromide ion, nitrite ion, bromonitroethanol and 2-hydroxymethyl-2-nitropropane-1,3-diol.