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The dihydrate, Na 3 H(CO 3) 2 · 2H 2 O, occurs in nature as the evaporite mineral trona. [1] Due to concerns about the toxicity of borax which was withdrawn as a cleaning and laundry product, sodium sesquicarbonate is sold in the European Union (EU) as "Borax substitute". [2] It is also known as one of the E number food additives E500(iii).
As a disinfectant, it is used to sterilize drinking water, swimming pools, tableware and air, and to fight against infectious diseases as a routine disinfection agent. It can be used for disinfection and environmental sterilization , for example in livestock, poultry, fish and silkworm raising, for bleaching textiles, for cleaning industrial ...
The corresponding reactions are shown below. Because the release of hydrogen gas is overall an exothermic reaction, the extra heat released helps to break down the greases, oils, etc. that form the clog. 1. Breakdown of aluminum oxide: Al 2 O 3 + 2NaOH + 3H 2 O → 2Na[Al(OH) 4] 2. Oxidation of aluminum metal: 2Al + 2NaOH + 6H 2 O → 2Na[Al(OH ...
Water softening is the removal of calcium, magnesium, and certain other metal cations in hard water. The resulting soft water requires less soap for the same cleaning effort, as soap is not wasted bonding with calcium ions. Soft water also extends the lifetime of plumbing by reducing or eliminating scale build-up in pipes
In petrochemistry, petroleum geology and organic chemistry, cracking is the process whereby complex organic molecules such as kerogens or long-chain hydrocarbons are broken down into simpler molecules such as light hydrocarbons, by the breaking of carbon–carbon bonds in the precursors.
It took three days to plug the hole, which was done by dumping large railroad cars, smaller mine cars, culm, and other debris into the whirlpool formed by the water draining into the mine. [5] Eventually, an estimated 10 billion US gallons (38,000,000 m 3 ; 8.3 × 10 9 imp gal) of water filled the mines.
However, heating the water to the required temperature uses a considerable amount of energy; energy usage can be reduced by using detergent enzymes which perform well in cold water, allowing low-temperature washes and removing the need for heated water.
By 1965, the firm was also the exclusive wholesaler for RCA products in Louisiana. His 8 pounds (3.6 kg) appliance was a third the weight of other machines available. Competitors used this to criticize Oreck's vacuum cleaner's effectiveness and durability. Oreck decided to first market to hotels where light weight would be a selling point. [6 ...
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