The Properties of Bronopol

With its English name, Bronopol, it is also known as bromo-2-nitro-1. It is a white to light yellow and yellowish brown crystalline powder, and it is odorless, tasteless, soluble in water, ethanol, propylene glycol, insoluble in chloroform, acetone, benzene and so on. It will decompose slowly in alkaline aqueous solution and corrode some metals, such as aluminum. Bronopol is toxic, which is irritating to eyes, skin and mucous membrane. It can cause congenital abnormality and is harmful to environment.

Bronopol is mainly used as antiseptic and bactericide. It is added in the process of shampoo, balsam and cream. Its concentration in cosmetics is 0.01%-0.02%, and it can also be used in detergent, fabric treatment agent and so on.

As a cosmetic preservative, bronopol is an ideal preservative. It has a wide antibacterial spectrum, good antibacterial and bactericidal effects on Gram-positive, negative bacteria, fungi and actinomycetes, it also has low inhibitory concentration and fast bactericidal effect, especially on pseudomonas aeruginosa. It is water-soluble and oil-soluble, the antibacterial activity is high in weak alkaline (pH = 7~9) and the formula of high concentration protein substance.

As a bactericide, bronopol can effectively control many plant pathogenic bacteria. The treatment of cotton seed can prevent and control the black arm disease and bacterial blight caused by cotton angular spot, and it has no harm to cotton. It can also be used for rice bakanae. The recommended concentration is 800-1000mg/L. It is also used in industrial circulating water, paper pulp, coating, plastic, cosmetics, wood, cooling water circulating system as well as sterilization, mildew prevention, anti-corrosion, algaecide and other industrial uses.

Bronopol is packed in plastic drums, avoiding metal containers. Bronopol is stored in a cool, dry and ventilated place. It is strictly prohibited to mix with strong oxidant, strong alkali, strong acid and food for loading, storage and transportation.

Nanjing Chemical Material Corporation. (NCMC), is a professional chemical distributor company. We provide 3 aminopropyltriethoxysilane solubility, amphoteric detergents, amphoteric surfactant, DMC Catalyst and etc. Want to know more? Please contact us.

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Synthesis of DMC-based polyether polyol by a continuous method A certain amount of DMC catalyst is taken and uniformly dispersed in a certain amount of small molecule initiator. Add 0.5 kg of the mixture of the initiator in the small test reactor. The vacuum was replaced 1-2 times with N2, and the N2 pressure was maintained at 0.1 MPa. After heating, stirring and raising the temperature to a certain temperature, the quantitative PO was introduced into the continuous autoclave with nitrogen gas for induction. When the induction is successful (the temperature in the kettle rises and the pressure drops), the PO is continuously passed to carry out the reaction. Open the outer loop and continue to pass the PO into the continuous kettle. When the liquid in the reaction vessel is full, the PO, DMC catalyst and the initiator are continuously added to the kettle at a certain ratio and a certain speed through the power system. Continuous discharge is started when a certain pressure is reac

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