Myacide is the industrial grade of 2-bromo-2nitopropane-1,3-diol or bronopol.

It provides highly effective antimicrobial activity for use in industrial biocide formulations combining well-proven efficacy with important environmental safety characteristics.

PRODUCT DESCRIPTION

Controlled Parameters

Description:
White to pale yellow crystals

Composition:
2-bromo-2-nitropropane-1,3-diol, (bronopol) minimum 98%

Solution test:
100 ml of a 1% solution in water is clear, colourless or almost colourless and generally free from extraneous matter.

pH at 20C:
4.5 to 7.0 when determined on a 1% solution in water

Water:
Maximum 0.5%

Impurities:
2-methyl-2-nitropropane-1,3-diol
maximum 0.5%

tris(hydroxymethyl)nitromethane
maximum 0.5%

Sodium bromide
maximum 3.5%

Others
maximum 0.5%

PRODUCT CHARACTERISTICS

Stability

• Myacide is stable for a minimum of three years when stored properly under ambient conditions.

Solubility

• Solubility at 22C is 28% w/v in water, 56% w/v in ethanol and 52% 2/v in propylene glycol. Soluble to 50% in a range of other polar solvents.

APPLICATION AREAS

Water Treatment

• Used in formulations to inhibit slime forming and sulphate reducing bacteria. Also widely approved for control of Legionella spp. as part of an integrated system management programme.

Paper and Pulp

• Used in formulations to inhibit slime formation in process water and for the preservation of slurries and other additives.

Paints and Latex Preservation

• Used alone or in mixtures to protect bulk additives from spoilage bacteria or provide in-can preservation of formulated products.

Oil and Gas

• Used for applications such as drilling muds, injection water, well squeeze treatment fracturing fluids and storage tanks.

Leather

• Used as a salt replacement for control of bacteria during hide or skin soaking.

Chemical Toilets

• Used to confer anti-bacterial and anti-odour activity to chemical toilet liquids.

Further details on each application area are available on separate information sheets.

PRODUCT SAFETY

In-Use Safety

• At dilution levels required to give antimicrobial performance in industrial fluids, Myacide is not irritant to human skin and is not regarded as a significant skin sensitiser.

Mammalian Toxicity

• As undiluted material, Myacide has moderate toxicity with rat acute oral LD50 determined as 254 mg/kg (male). It is therefore classified for supply purposes as ‘Harmful" using the phrases R21/22, R37/38 and R41.
• Tests have shown Myacide is not mutagenic, carcinonogenic, embryotoxic or teratogenic.

Ecotoxicity

• Myacide is inherently biodegradable and does not accumulate in the environment. Due to its rapid photolysis and hydrolysis, Myacide will not, under normal use conditions, cause problems to effluent treatment plants or to the environment following discharge into waste waters.

Like other effective biocides, however, Myacide is toxic to some species of algae and has therefore been classified as ‘Dangerous for the environment’ for supply purposes.

HANDLING AND STORAGE

Store at ambient temperature in dry conditions in sealed containers as supplied. Please consult the safety data sheet before handling this product.

USEFUL NOMENCLATURE

CAS No. 52-51-7

EINECS No. 200-143-0

EC No. 603-085-008

The Harmonised System (HS) code for customs purposes is 290550990.

U.N. No.3241, class 4.1, packing group III.

The information contained in this sheet is believed to be accurate but is given without warranty.