PHMB 20%

General Description

It is a broad spectrum, fast acting bactericide.  A 20% aqueous solution of Polyhexamethylene biguanide hydrochloride with the following structure, also known as PHMB. It is an effective preservative for make-up removers, moisturizing toners, facial cleansers, wet wipes, Water treatments application, Fermentation equipment and also offers antibacterial and deodorant properties.

A--[(CH2)6-HN-C-NH--C-NH]n—A”

NH NH.HCl (n=10~20)

A(A”)=Amine group, or biguanide group or Cyanogen group

Features and Benefits

• Broad spectrum of activity against a wide range of spoilage organisms especially Gram negatives.

• Heat stability, non-volatile and stable at elevated temperatures

• Broad pH compatibility, effective over pH range 1.0-9.0

• Liquid formulation, easily incorporated into the aqueous phase

• No odor

• Low taint

• Low foaming

• Low mammalian toxicity

• Low environmental impact, bioeliminated by absorption when discharged to effluent

Applications

It is an effective in wide range of industrial disinfection applications, primary as a solid surface disinfectant. Applications include:

• Hospital

• Institutions

• Veterinary establishments

• Diaries

• Poultry hatcheries

• Food processing plants

• Breweries

• Pasteurisers in canned food & beverage bottling plants

• Yoghurt fermentation

• Air conditioning units

• Beer glass cleaners

Amount to Use

The amount of preservative required to provide an adequate protection depends on several factors including the nature of the product, its susceptibility to microbiological attack, the extent to which microorganisms can gain access, the organisms present, the pH of the product, the temperature of storage and the length of time for which protection is required. As such factors depend on individual circumstances, trials should be carried out to determine both compatibility with the personal care formulation and optimum Its dosage. Typical Levels of Addition for Trial Purposes:

When to Add

Since microorganisms are often introduced into products through water and other raw materials, it is recommended that it be added at an early stage of production to eradicate these potentially harmful microorganisms. Normally the most convenient method of addition is to incorporate It into the water phase.

Typical Properties and Specifications

Composition: Aqueous solution of polyhexamethylene biguanide Hydrochloride

Active Agent Content: 20%

Physical Form: Slightly yellow to Colorless and almost clear

Viscosity (mP.S ,25℃): 5-6

Specific Gravity(25℃): 1.035-1.046 (approx.)

pH, (25℃): 5.0-6.0

Boiling Point: 102-103℃ (approx.)

Stability: Stable under all normal conditions of storage but must be protected from

intense heat and frost.

Solubility: Soluble in water, ethanol, glycerin and propylene glycol. Insoluble in

hydrocarbons, vegetable and animal oils, and aromatic solvents.

Compatibility: Compatible with nonionic detergents, acids, quaternary ammonium

compounds and cationic materials. Incompatible with anionic surfactants e.g.

soaps, alkyl sulphonates and anionic caramels. Precipitated by strong alkalis

and complex phosphates.

Packaging & Storage

It is packaged in 1000kgs IBC,200Kgs Plastic drum.

It is stable at normal conditions of storage when kept on closed containers.