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Calcium stearate is used to control effloresence in concrete. I don't believe there is any effect on shrinkage. However, it is often added to other concrete admixtures, like water reducers. Those products can effect shrinkage, but usually they help to reduce it.
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What are the advantages and disadvantages of reinforced concrete?
reinforced concrete prise
Is calcium a metal or nonmetal?
The element calcium is a metal. It turns out that calcium (Ca) is in Group 2 of the periodic table, and all the elements in Group 1 and Group 2 are "true" metals.
How do you remove the white film on aggregate concrete left from rain running off the side of schist walls?
A mild acid will remove the film. The film may be from the rock walls or from the concrete itself. Most hardware stores in the US have concrete remover either in the cleaning products or floor tile aisles. A household product that works for me is Lysol brand toilet bowl cleaner. Spread it on, leave it a few minutes, and hose it off. CLR (Calcium - Lime - Rust) remover will do equally well. If you are extremely concerned about the possibility of damaging the concrete, a slightly milder acid is vinegar, which is 5% acetic acid. Buy the big economy size in the canning supplies section of the supermarket. Hope this is helpful to you.
Reaction from iron nail and calcium metal?
The iron will not react unless you react it with calcium chloride. This is because Chloride is very electronegative (it has a high affinity for electrons) Both iron and calcium are not very electronegative and would like to give away their electrons. The Chloride ion accepts these electrons to get a full valent shell.
What is the another name of sand lime bricks?
calcium silicate bricks
How do you remove sodium chloride from calcium stearate?
To remove sodium chloride from calcium stearate, you can dissolve the mixture in water. Sodium chloride is water-soluble, so it will dissolve in the water while calcium stearate remains insoluble. By filtering the solution, you can separate the sodium chloride from the calcium stearate.
What is balanced chemical equation for calcium chloride and sodium stearate?
The balanced chemical equation for the reaction between calcium chloride (CaCl2) and sodium stearate (C17H35COONa) would be: 2 CaCl2 + 2 C17H35COONa -> 2 NaCl + Ca(C17H35COO)2 This equation shows that calcium chloride reacts with sodium stearate to produce sodium chloride (NaCl) and calcium stearate.
Will calcium stearate dissolve in Hcl?
No, calcium stearate is insoluble in hydrochloric acid (HCl). It will not dissolve in HCl due to its low solubility in acidic solutions.
What is the chemical formula for Calcium Stearate?
Calcium stearate is carboxylate of calcium that is found in some lubricants and surfactants. It is a white waxy powder. It is produced by heating stearic acid, a fatty acid, and calcium oxide. It is also formed when sodium stearate is added to hard water (as scum). Sodium stearate + CaSO4 -----> C36H70CaO4 + Na2SO4 OR Sodium stearate + Ca(HCO3)2-------------> C36H70CaO4 + NaHCO3 Anyway, just wanted to refresh your memory a little bit... The formula is, as mentioned earlier : C36H70CaO4 Oh, and sodium stearate's just a fancy word for soap...
How calcium stearate is prepared?
Calcium stearate is typically prepared by reacting stearic acid with calcium hydroxide to form calcium stearate and water. The reaction is carried out at elevated temperatures with stirring to ensure complete conversion of the raw materials. The resulting calcium stearate can then be purified and dried for use in various applications.
The properties and application of calcium dodecyl stearate?
Calcium dodecyl stearate is a flaky or needle-like crystal chemical substance with a melting point of 82-93°C. Flammable and low toxicity. Insoluble in water, soluble in ethanol, ether and chloroform. The main use of calcium dodecyl stearate: widely used in lubricants, stabilizers, plastics and rubber additives. Calcium lauryl stearate is used as a lubricant and release agent for constant temperature and various plastic processing, and is an excellent rubber and plastic additive. Calcium dodecyl stearate is also used in organic synthesis.
What is the ratio of Ca2 and stearate anion?
The ratio of Ca2+ ions to stearate anions depends on the specific compound or salt being referred to. For example, in calcium stearate (Ca(C17H35COO)2), the ratio is 1:2, with one Ca2+ ion for every two stearate anions. However, in other compounds, such as calcium di(stearate) (Ca(C17H35COO)2), the ratio may vary.
What is functional group in calcium sterate?
The functional group in calcium stearate is the carboxylate group, which is derived from stearic acid. This group consists of a carbon atom double-bonded to an oxygen atom and single-bonded to another oxygen atom, which is attached to the calcium ion. This functional group provides calcium stearate with its properties such as its ability to act as a lubricant or release agent.
Is calcium stearate a soap or a salt?
Soaps are usually salts of long chain fatty acids with Sodium or Potassium ion and are soluble in water but Calcium stearate is very slightly soluble in water so can not be used as soap so it is better to consider it as a salt only.
Is calcium stearate considered a soap or a salt?
Soaps are usually salts of long chain fatty acids with Sodium or Potassium ion and are soluble in water but Calcium stearate is very slightly soluble in water so can not be used as soap so it is better to consider it as a salt only.
Is calcium sulfate vegan?
In some products it can be. Calcium stearate can be derived from animals and vegetables.
Which reaction results in the production of soap?
The reaction that results in the production of soap is called saponification. It involves the hydrolysis of fats or oils with a strong base (such as sodium hydroxide or potassium hydroxide) to produce soap and glycerol. This process is used in soap-making.
