SoleChem

Bronopol

CAS
52-51-7
EC
200-143-0
Mol. Weight
199.99 g/mol

Description

Bronopol (CAS 52-51-7), also known commercially as beta-Bromo-beta-nitrotrimethyleneglycol and 2-Nitro-2-bromo-1,3-propanediol, is a broad-spectrum antimicrobial active used primarily as a preservative and biocide.

It controls bacterial growth effectively at low concentrations, making it a cost-efficient option for formulators managing microbial contamination in aqueous systems across industrial and personal care applications.

In personal care and cosmetics, this chemical functions as a preservative in rinse-off and leave-on formulations including shampoos, lotions, and liquid soaps. Industrial water treatment systems rely on it to suppress bacterial populations.

It is frequently utilized in cooling towers and process water circuits to maintain system efficiency. Oilfield and metalworking operations use it to prevent microbial-induced corrosion and spoilage in drilling fluids and cutting fluid emulsions.

Pulp, paper, and textile processing also employ it to control slime-forming bacteria that degrade product quality and clog equipment. This versatility makes it a staple in heavy industrial manufacturing environments.

The product is supplied as a white to off-white crystalline powder. It is available in technical grade for industrial applications and in higher-purity grades meeting pharmaceutical and cosmetic manufacturing standards.

Packaging typically ranges from kilogram-scale bags to bulk quantities suited for large industrial procurement. Our supply chain ensures consistent quality and availability for global distribution and specialized chemical requirements.

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Physical Properties

Melting Point 131.5 °C
Boiling Point 358.0±42.0 °C(Predicted)
Density 1.1 g/cm³
Flash Point 167°C
Appearance off-white crystalline powder
Color White to yellow
Odor odorless
Form Crystals or Crystalline Powder
Water Solubility 25 g/100 mL (22 ºC)
Refractive Index 1.6200 (estimate)
Log P 1.150 (est)

Safety & Handling (Learn More)

Danger GHS05 GHS07 GHS09 GHS06 GHS02 GHS08
Hazard Statements
H228 Flammable solid
H301 Toxic if swallowed
H302 Harmful if swallowed
H310 Fatal in contact with skin
H312 Harmful in contact with skin
H315 Causes skin irritation
H318 Causes serious eye damage
H330 Fatal if inhaled
H331 Toxic if inhaled
H335 May cause respiratory irritation
H373 May causes damage to organs through prolonged or repeated exposure
H400 Very toxic to aquatic life
H410 Very toxic to aquatic life with long lasting effects
H411 Toxic to aquatic life with long lasting effects
H302+H312 Harmful if swallowed or in contact with skin
Precautionary Statements
P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P240 Ground and bond container and receiving equipment.
P241 Use explosion-proof [electrical/ventilating/lighting/…] equipment.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P262 Do not get in eyes, on skin, or on clothing.
P264 Wash … thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P271 Use only outdoors or in a well-ventilated area.
P273 Avoid release to the environment.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P284 In case of inadequate ventilation wear respiratory protection.
P316 Get emergency medical help immediately.
P317 Get emergency medical help.
P319 Get medical advice/attention if you feel unwell.
P320 Specific treatment is urgent (see … on this label).
P321 Specific treatment (see … on this label).
P330 Rinse mouth.
P391 Collect spillage.
P405 Store locked up.
P501 Dispose of contents/container in accordance with local regulations.
P264+P265 Wash … thoroughly after handling.
P301+P316 Get emergency medical help immediately.
P301+P317 Get emergency medical help.
P302+P352 IF ON SKIN: Wash with plenty of water.
P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P332+P317 Get emergency medical help.
P361+P364 Take off immediately all contaminated clothing and wash it before reuse.
P362+P364 Take off contaminated clothing and wash it before reuse.
P370+P378 Use … for extinction.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P305+P354+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code 29055999
UN Number 3241
ADR Class 4.1
Packing Group III
Storage Class 4.1B - Flammable solid hazardous materials
WGK (Germany) 2

Documentation

Other Names

Bronopolu|beta-Bromo-beta-nitrotrimethyleneglycol|2-Nitro-2-bromo-1,3-propanediol|2-Bromo-2-nitropropane-1,3-diol|2-Bromo-2-nitro-1,3-propanediol|Bronosol|Bronocot|Bronotak

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