Biocide Chemicals

Shandong IRO are famous for high-quality biocide
chemicals, professional service, experienced expert
and advanced technology.Biocides category as below:
aldehydes, halogens, hydantoins, isothiazolinones and
other environment-friendly biocides.


2-Bromo-2-Nitropropane-1 3-Diol (Bronopol)

CAS No.: 52-51-7

Molecular Formula: C3H6BrNO4

Molecular Weight: 199.99

Structural Formula:




Bronopol (cas 52 51 7) is supplied as crystals or crystalline powder, which may vary from white to pale yellow in color depending on the grade of material being offered.

As a pure material, this halogen product has a melting point of about 130℃. However, due to its polymorphic characteristics, 2-bromo-2-nitropropane-1 3-diol undergoes a lattice rearrangement at 100 to 105℃ and this can often be wrongly interpreted as the melting point.

At temperatures above 140℃, this kind of halogen will decompose exothermically releasing hydrogen bromide and oxides of nitrogen.

Bronopol is readily soluble in water although the dissolution process is endothermic. Solutions containing up to 28% w/v are possible at ambient temperature. Bronopol fungicide (cas 52 51 7) is poorly soluble in non-polar solvents but shows a high affinity for polar organic solvents.


CharacteristicsWhite or almost white crystalline powder
IdentificationIr Positive
Melting Point123℃~131℃
Acidity (1%W/V)pH 5.0~7.0
Related SubstancesGC
Loss On Drying≤ 0.5%
Sulphated Ash≤ 0.1%
Granular20 mesh: 90% Pass, 10 mesh: 95% Pass


As fungicide, bronopol is widely used in industrial circulating water, algae-killing, paper pulp, paint, plastic, timber-cooling circulating water and other industries. In addition, it can be used to prevent daily-used cosmetic products from moldy and corrosion.

Package and Storage

Packed by paper drum( 25 KG/50 KG) or as per customer requirement.

Store bronopol (cas 52 51 7) in cool, dry and ventilative places. Keep away from incompatible substance. It can not be stored together with food and feedstuff.


2-Bromo-2-Nitro-1 3-Propanediol, BNP

Products containing bronopol

Adhesives and Glues

Agricultural Chemicals

Cleaning Agents

Construction Materials

Cooling Lubricants

Filling Agents

Flooring Agents

Indicators and Reagents

Kitty Litter

Metal Working Fluids


  • Finger paints




Printing Inks


  • Biocide

Toiletries and Cosmetics

  • Blushers
  • Cleansing lotions
  • Creams
  • Eyebrow pencils
  • Formaldehyde releaser
  • Foundations
  • Hair conditioners
  • Hair dressings
  • Humidifiers
  • Mascara
  • Moisturizers
  • Shampoos
  • Deodorants

Washing Detergents