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.

Benzalkonium Chloride (BKC) 50%

CAS No.: 8001-54-5, 63449-41-2

Molecular Weight: 340.0

Molecular Formula: C21H38NCl

Structural Formula:

Benzalkonium chloride 80



BKC 50% is the short name of Benzalkonium chloride 50. It is a kind of quaternary ammonium-based nonoxidizing biocide. It belongs to cationic surfactants.

BKC 50% has excellent properties of dispersing and penetrating. It can easily penetrate and remove sludge and algae in water flooding for EOR(enhanced oil recovery).

Benzalkonium chloride has advantages of low toxicity, no toxicity accumulation. And it is also soluble in water. The BKC 50% is so convenient to use and unaffected by water hardness. BKC 50 can be also used as an anti-mildew agent, antistatic agent, emulsifying agent, and amendment agent in woven and dyeing fields.

IRO Biocide is among the best benzalkonium chloride manufacturers and suppliers for oilfield water treatment. We always supply high-quality BKC 50% products.


AppearanceColorless to yellowish transparent liquid
Active content50% ±2%
Amine salt≤ 2.0%
pH6.0-8.0 (as it)


what is benzalkonium chloride used for?

Benzalkonium chloride can efficiently withhold algae propagation and sludge reproduction. It can penetrate and remove sludge and algae. BKC 50% has advantages of low toxicity, no toxicity accumulation, soluble in water, convenient in use, unaffected by water hardness. Benzalkonium chloride can be also used as anti-mildew agent, antistatic agent, emulsifying agent and amendment agent in woven and dyeing fields.

Benzalkonium Chloride 50 is widely used in many fields because it can efficiently control bacteria, algae, and fungi and envelop viruses at exceptionally low ppm concentrations. Such as food, water treatment, cosmetics, pharmaceuticals, livestock, detergent, aquaculture, household, and hospital industries.

In the oil and gas industry, BKC 50% can prevent algae growth, bacterias development, and also sludge reproduction.

Benzalkonium chloride can also be used in the formulation of pipeline corrosion inhibitors, sludge breakers, and de-emulsifiers for the enhanced oil process of recovery.

As nonoxidizing biocide, the dosage of 50-100mg/L is preferred. As sludge remover, 200-300mg/L is preferred, adequate organosilyl antifoaming agent should be added for this purpose.

BKC 50 can be used together with other fungicidal. Such as isothiazolinones, glutaraldehyde, dithionitrile methane for synergism, but cannot be used together with chlorophenols. If sewage has appeared after thrown of this product in circulating cool water, the sewage should be filtered or blown off in time to prevent their deposit in the bottom of collecting tank after anion disappearance.

Package and Storage

Packed in 200L plastic drum, IBC(1000L), or as per customers’ requirements. Storage for two years in shady room and dry place.

Safe Protection

Almond smell, no stimulation to skin. Flush with water once contacted.


Dodecyl Dimethyl Benzyl Ammonium Chloride.