CONSTITUTION: The phosphate type hard water-resistant antifreeze composition contains 0.3-0.7wt% of sodium phosphate, 2-5wt% of sodium benzoate and 0.5-3.0wt% of sodium succinate as carboxy-based metal corrosion-proofing agents, 0.01-0.5wt% of ethylene diamine tetraacetic acid(EDTA) as the ...
Oceans have been around a very long time, so some of thesaltswere added to the water at a time when gases andlavawere spewing from increased volcanic activity. The carbon dioxide dissolved in water from the atmosphere forms weak carbonic acid which dissolvesminerals. When these minerals dissolve...
hardwater lakes and streams. The concentrations of four major cations, Ca++, Mg++, Na+, and K+, and four major anions, HCO3−, CO3−, SO4−, and Cl−, usually constitute the total ionicsalinityof the water for all practicalpurposes. Concentrations of ionized components of other ...
A composition for coating a photoresist pattern which comprises water and a compound of Formula 1 is coated on a previously formed photoresist pattern, thereby reducing a size of a space or contact hole of photoresist pattern effectively. The method using the composition is applied to all semicondu...
it is found that WRCof the reference boy is 7.7 kg. Therefore. W Vis 10.6 kg. MINERALS Minerals in the body may be partitioned into those in hard tissues (bones and teeth), subsequently referred to as osseous minerals, and those in extracellular and celluiar water. subse- quently ...
99.945% Distilled or De-Ionized Water. 0.05% Distilled White Vinegar. 0.005% Kathon. (A preservative that prevents mold from appearing on Wet wipe). 2.1 grams of solution is currently injected into Wet Wipes, composed of wood pulp and nylon fibers. Each wipe measures 7″×5″.<...
which has excellent water resistance and film- forming properties and gives a coating film having excellent strength, by blending a modified polyvinyl alcohol contg. a silyl group, chitosan and an aldehyde compd. or a water-soluble metal salt. CONSTITUTION:A compsn. consists of a modified ...
Physicochemical profile of the pond shows tropical climate, hard water and alkaline in nature. Chloride content was found to be high may be due to the anthropogenic pressure and influx of sewage. The high content of phosphate and nitrate reveals that the pond is enriched with nutrients. This ...
Global measures of biodiversity indicate consistent decline, but trends reported for local communities are more varied. Therefore, we need better understanding of mechanisms that drive changes in diversity of local communities and of differences in temporal trends between components of local diversity, suc...
water depth and width of waterways, providing a unique ecological niche for bacterial growth. Hence, understanding how bacterial communities in PRNs respond to changes in hydrodynamic conditions, physicochemical parameters, and pollutants under ship navigation is essential to maintaining the stability of ...