Bactericide & Scavengers

Starch Preservative

PRODUCT DESCRIPTION

STARCH PRESERVATIVE is a very cost-efficient biocide applicable in all water-based drilling fluids. It consists of polyoxymethane which is formed by polymerizing formaldehyde.

PHYSICAL & CHEMICAL PROPERTIES

Appearance White, flow able powder
pH 6.7 (1% aqueous solution)
Specific Gravity 1.46g/cm3
Molecular Weight (30.03)n g/mole
Melting Point 120 - 170°C
Flash Point 70°C
Auto Ignition Temperature 300°C
Solubility Slightly Soluble in Water

APPLICATION

Starch Preservative effectively stops the biological decay of all anhydroglucose-based polymers. It may be applied in all water-based drilling fluids having little or no effect on the rheology or chemical composition of the system. It not only acts as a biocide, but also increases the temperature stability of the polymers by cross-linkage.

RECOMMENDED TREATMENT

STARCH PRESERVATIVE is initially added to the drilling fluid in amounts of 0.05 - 0.1 lb/bbl (0.15 - 0.3kg/m3); depending on the salt content and temperature of the system.

PACKAGING

Starch Preservative is available in 25 kg multi-ply paper sacks, palletized as 40 sacks per pallet.

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