Emulsion metal working fluids

Uses. Vulcanization accelerator for type of rubber usually used in the production of household rubber gloves rather than medical rubber gloves corrosion inhibitor in metal-working fluids, detergents, antifreeze, and photographic emulsions. 

Similar problems arise with many metal working fluids. These are sprayed onto the cutting tools, fall into an open collecting vessel, and are recirculated. They are frequently contaminated with organic detritus such as food crumbs, and mice or rat faeces or urine. They may be topped up periodically with fresh oil and maintained at temperatures of 20-30 °C leading to rapid deterioration. The effect of bacterial metabolism is to break the emulsion into organic and aqueous layers, the oil is converted into fatty acids, the pH falls the emulsion becomes useless and may cause corrosion spots on the finished item. 

Uses Biocide, preservative for aq. systems, paints/coatings, latexes, resin emulsions, pigment slurries, dispersed colors, Joint cements, adhesives, metal working fluids, textile processing sol ns. 

As a preservative for functional fluids, such as detergent solutions, emulsions, water based paints, metal working fluids, Dimethoxane profits from its insensitiveness to non-ionic, anionic and cationic emulsifiers and detergents. Addition rates 0 03-0 1%. 

Because of its equalized spectrum of effectiveness and its favourable toxicological properties the microbicide is gaining more and more importance as a preservative for a wide variety of aqueous functional fluids, such as polymer emulsions, paints, adhesives (including protein based adhesives), mineral slurries, concrete additives, metal working fluids, detergent solutions, cosmetic products, etc. The EC list of preservatives permitted for use in cosmetics mentions 1,2-dibromo-2,4-dicyanobutane with a maximum authorized concentration of 01% and not to be used in cosmetic sunscreen products. 

Uses Emulsifier for cosmetic w/o creams with high amounts of paraffins coemulsi-f er for water-miscible metal working fluids Features Provides emulsions with stability at elevated temps, and with good freeze/thaw stability Regulatory DSL listed... 

TEKTAMER 38 is a preservative which effectively inhibits the growth of microorganisms in aqueous systems, including paints, emulsions, adhesives, joint cements, pigment dispersions, metal-working fluids, inks, polishes, and waxes. The chemical name of TEKTAMER 38 is a l,2-dibromo-2,4-dicyano-butane. ... 

Machine operators working with emulsions can become susceptible to skin infections because of the combination of the de-fatting effect of soluble-oil emulsifiers and the abrasive action of metallic scarf, but bacteria in cutting fluids are seldom the source of such infections. High standards of personal hygiene and the use of barrier creams should prevent such problems. A more difficult situation arises when a soluble-oil emulsion becomes infected with bacteria capable of utilizing the emulsifier and mineral-oil components in the system. Even in clean conditions, untreated soluble-oil emulsions and solutions cannot remain completely sterile for any length of time. 

Water lubrication is used in some niche applications such as reservoir pumps, and oil-water emulsions are often used for metal cutting, taking advantage of the effectiveness of water as a coolant. In the mining industry, hydraulic fluids are frequently based on water so as to exclude flammable materials from underground working areas. Interest in water lubrication is also high in the food, textile, and pharmaceutical industries, where product contamination by oil is a concern (1). 

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