Benzalkonium Chloride Solution 50% (BKC 50)


Benzalkonium chloride (BKC) is a kind of cationic surfactant. It belongs to the nonoxidizing biocide. Benzalkonium chloride can efficiently withhold algae propagation and sludge reproduction. This BKC surfactant also has dispersed and penetrating properties that can penetrate and remove sludge and algae.

And benzalkonium chloride has the advantages of low toxicity, no toxicity accumulation, soluble in water, convenient use, and unaffected by water hardness. Benzalkonium chloride solution can also be used as an anti-mildew, antistatic, emulsifying, and amendment agent in woven and dyeing fields.

CAS No.:

8001-54-5 or 63449-41-2 (Benzalkonium Chloride), 139-07-1 (Dodecyl Dimethyl Benzyl Ammonium Chloride, 1227).

Molecular Weight:


Molecular Formula:


Structure Formula:

benzalkonium chloride structure formula


AppearanceColorless to yellowish transparent liquidColorless to yellowish transparent liquid
Active content48-52%78-82%
Amine salt2.0% Max.1.0% Max.
pH Value6.0~8.0 (as it)6.0-8.0 (1% water solution)


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

Benzalkonium chloride (BKC) can be used together with other fungicidal, such as isothiazolinones, glutaraldehyde, and dithionitrile methane, for synergism.

BKC surfactant cannot be used together with chlorophenols. However, suppose sewage appears after throwing this product in circulating cool water. In that case, it should be filtered or blown off to prevent their deposit in the bottom of the collecting tank after froth disappearance.

Packing and Storage:

200L plastic drum, IBC(1000L), customers’ requirement. Storage for two years in a dark room and dry place.

200l plastic drum 1000l IBC

Safety Protection:

A slight smell of almonds but no visible stimulation to the skin. When contacted, flush with water.


benzalkonium chloride solution 50%, Zephiran, dodecyl dimethyl benzyl ammonium chloride, 1227.


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