Borax and swimming pools
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The acidity of swimming pools needs to be monitored and controlled to prevent the growth of microbes, whilst avoiding skin and eye irritation. ... Borax (Na 2 B 4 O 7.10H 2 O) Other common acids/bases are unsuitable, as they don’t fit the above criteria. HCl is efflorescent.
[DOC File]STEM curriculum for K-12 - TeachEngineering
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Chlorine combines readily with nearly all other elements, although it is not as extremely reactive as fluorine. It has a suffocating odor that is easily detectable. Chlorine is commonly used in bleaching and disinfectants and in swimming pools to keep them clean. Engineers use chlorine to help purify drinking water. S. NON-METAL: Sulfur
[DOC File]Chapter 1
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• Bisulfate (HSO4–1) salts are important components of “dry acids” used in toilet bowl cleaners and in adjusting the pH of swimming pools and hot tubs. • The sulfite ion, SO3–2, and the thiosulfate ion, S2O3–2, are other important sulfur-containing ions: 8 SO3–2 (aq) + S8 (s) ( …
[DOCX File]wayne.osu.edu
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The real story behind pH and spray water hardness. Andrew Storrie. Boom Sprayers, Featured Article, Mixing, Mixing, Speciality Sprayers The quality of water being used in the spray tank to act as the carrier for your pesticides can have significant effects …
[DOCX File]ENZYMES
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water discharged from swimming pools large volumes of blood If discharging larger volumes of grease or plant-based oils, we would recommend pre-cleaning the wastewater containing the greases/oils in a grease separator upstream of the wastewater treatment system (caution: faeces must not be allowed to enter the grease separator).
[DOCX File]Home | Primary Business Partnership
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Describe that borax can be added to join together the long chains of polymers in PVA glue to create a bouncy ball. Also that cornflour can be added to help the molecules stick together so the ball retains its shape. ... Lifeguards need to test the pH of swimming pools. Engineers on big manufacturing plants also need to test solutions for the pH ...
[DOCX File]Meetup
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Water Procurement, Purification and PreservationH20 - the Universal solvent carries many forms of energy from one point in space to another. Potential sources of water for emergency use: Water heaters (should be flushed out from the bottom valve every six months to remove mineral deposits) Swimming pools, puddles, veggie cans, urine and grey water.
[DOC File]U.S. Scouting Service Project
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Swimming Pools Consumers with residential pools need to be aware of all the safety tips regarding in-home hazards, and also be aware of how to protect young children from the dangers a pool poses. The key to preventing a swimming pool tragedy is to have layers of protection.
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Chlorine granules for swimming are ideal for keeping large quantities of bleach on hand. 2 teaspoon of chlorine powder added to 1 gallon of water makes 1 gallon of bleach. Use a spray bottle or pressure sprayer (type used for pesticides ) Dawn dish liquid is the preferred standard for an expedient detergent.
[DOC File]complete module 8/8/95 1-27
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3. The borax (sodium borate) can be obtained from your grocery store as "Twenty Mule Team Borax," a laundry bleaching agent. The borax is mixed at a 4% concentration in water. To do this measure out 4 grams of borax and dissolve in 96 grams (milliliters) of water (note: Water has a density of 1 g/mL). 4.
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