A few things could be what causes black stains in the toilet bowl, with the main culprits being hard water, bacteria, mold, and mildew. Hard water. The mineral deposits left from hard water use can collect in places with a … Continue reading →

Muriatic acid is a form of hydrochloric acid, which has a pH of about 1 to 2. The only differences between hydrochloric acid and muriatic acid are purity—muriatic acid is diluted to somewhere between 14.5 and 29 percent, and often … Continue reading →

Hydrogen Peroxide + Vinegar Experts say this method is safe — but don’t mix the two products in the same container. Combining them creates peracetic acid, which is potentially toxic and can irritate the skin, eyes, and respiratory system. What … Continue reading →

Muriatic acid may not hurt PVC or other drain lines, but it is much too aggressive for monthly maintenance and it is potentially dangerous to use if not careful. It can cause serious burns to you and the fumes are … Continue reading →

The most common acids used to clean concrete and bricks are hydrochloric acid (muriatic) or phosphoric acid. For many years it has been the standard cleaning method to prepare concrete for coatings installations, to remove stains of any type from … Continue reading →

When concentrated sulfuric acid contacts the skin, the resulting chemical reaction releases heat that brings sustained thermal damage to the skin[4]. The sustained heat dehydrates local tissues and cells, and the consequential skin coagulation and necrosis may produce eschars and … Continue reading →

Car or automotive battery acid is 30-50% sulfuric acid (H2SO4) in water. How much sulfuric acid is in a car battery? A car battery usually has about 1kg of sulfuric acid. This acid is used to generate an electrical current … Continue reading →

So for electron flow, the positive terminal is lower potential energy. Conversely if they move from the positive terminal to the negative terminal, they gain potential energy. So the negative terminal would then be considered at higher potential energy. Why … Continue reading →

The problem is that pennies minted since 1982 are mostly zinc and carry only a light coating of copper, which can be eaten away by stomach acid. The zinc, in turn, can cause lots of problems that include bleeding ulcers … Continue reading →

The group 27 deep cycle typical offers a capacity of 60-110 Ah. The reverse capacity of group 27 offers 140-220 minutes. Group 27 provides 600-1000 CCA and the performance is higher than group 24 deep cycle. How long do Group … Continue reading →

Researchers at the University of Illinois at Urbana-Champaign have developed a new lithium-ion battery technology that is 2,000 times more powerful than comparable batteries. Which is most powerful battery? The Saft Ni-Cd battery comprises 4 strings of 3,440 high- rate … Continue reading →

Concentrated sulfuric acid does not dissociate completely in the aqueous solution to give ions and does not conduct electrical conductivity while dilute sulfuric acid dissociate 100% to give hydronium ions in the solution and has more acidity. Why concentrated sulphuric … Continue reading →

Acidity. ) and protons, thus greatly increasing the acidity. This leads to protonation of very strong acids like hydrochloric, sulfuric, or nitric when using concentrated hydrofluoric acid solutions. Although hydrofluoric acid is regarded as a weak acid, it is very … Continue reading →

A good Asus laptop should have a battery that lasts for 9 hours on a single charge, enough to get you through the working day. A better Asus laptop will have a short-term life of 12 to 14 hours. How … Continue reading →

Fortunately, car battery cells can be fixable or reconditioned. You can fix the dead car battery at home with some tools and some requirements. If you recondition your car battery or fix the dead cells in a car battery, it … Continue reading →