Sodium chloride or sodium salt of hydrochloric acid is a powder or crystals of a colormuch less, odormuch less substance, via a salty taste. In everyday life, sodium chloride is well-known as table salt. The chemical formula is NaCl. In nature it is encountered in the create of halite, i.e. rock salt. Pure sodium chloride is colorless, but if it contains impurities, it may take on other colors. For example, it may be purple or blue, yellow or pink.
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Physical properties of sodium chloride
It is moderately soluble in water, and also the temperature at which the reaction takes area plays practically no duty. At a temperature of 21 °C the coefficient of solubility in 100g of water is 35.9, at 100 C it is 38.1 Chloride ions develop a cubic lattice, through sodium ions are at the optimal. Melting point is 800.8 °C. Table salt begins to boil at a temperature of 1,465 °C.
Chemical properties of the sodium salt of hydrochloric acid
NaCl is a salt which was developed as a result of the interaction of an alkali and also acid. Sodium chloride is a strong electrolyte. The ions attract each other extremely strongly, and also the attraction between them deserve to only be broken by polar solvents. In H₂O the crystal lattice easily drops apart. Anions and cations of the bond are freed (Na⁺, Cl⁻). This explains the great electrical conductivity of sodium chloride.
Qualitative reactions to sodium cations
The qualitative reaction to determine the sodium cation Na⁺
Take a wire and make a loop at the finish of it. Put a little salt on the loop and also host it as much as a flame. The flame will certainly burn through a yellow color – this shows the presence of sodium.
Another reaction for the sodium cation
Dioxouranium(VI) zinc acetate forms a yellow crystalline sediment. The chemical reaction is:
NaCl + Zn(UO₂)₃(CH₃COO)₈ + CH₃COOH + 9H₂O ↔ NaZn(UO₂)₃(CH₃COO)₉ · 9H₂O↓ + HCl
Reaction of potassium hexahydroxoantimonate(V)
A white sediment creates, which is soluble in alkalis:
NaCl + K
In an acid medium, the reagent breaks dvery own with the formation of a white amorphous sediment of meta-antimonic acid HSbO₃:
H₃SbO₄ ↔ HSbO₃↓ + H₂O
Qualitative reaction to the presence of an anion, i.e. Cl⁻
This have the right to be observed in the qualitative reaction to chloride ions. In the interaction via silver nitprice, a sediment of silver chloride of a white color forms. The chemical formula is:
AgNO₃ + NaCl = AgCl + NaNO₃
Hydrogen chloride from the salt is required out by more powerful acids than hydrochloric acid.The chemical reaction is:
2NaCl + H₂SO₄ = Na₂SO₄ + 2HCl
Quantitative determination of sodium chloride
We take a standard solution of sodium chloride and pour it into a flask, dilute it via two components distilled water, include two drops of potassium chromate solution and also titprice via a solution of silver nitprice until an orange-yellow color appears:
NaCl + AgNO₃ → AgCl↓ + NaNO₃
Another method for the reaction of sodium chloride and also determining the quantity of salt. Mix a sodium chloride solution in a flask for titration, include 4 drops of diluted nitric acid (1:4), 4 drops of a saturated alcohol solution of diphenylcarbazone. Start to titprice with a 0.01 M solution of mercury perchlorate until a pinkish-purple color appears.
Click right here to see more experiments with sodium chloride.
Location of table salt
Tright here is a sufficient quantity of sodium chloride on Earth. It have the right to be found:In the water of seas, oceans and also lakes. The world ocean contains 120 billion loads of sodium chloride. 1.3 loads of sodium chloride deserve to be obtained for 1,000 lots of sea water.There are many kind of deposits of this mineral in various countries, and the biggest deposit can be discovered in Great Britain.On the shores of salt lakes.In salt marshesOn the wall surfaces of volcano craters.
Use and also benefit of salt for human beings
Kitchen salt is offered for salting vegetables, fish and meat. It is supplied as antiseptic.
The role of sodium chloride is likewise important in medicine; it is offered for an isotonic solution. 9 g of salt is diluted in 1 liter of water. This is the concentration of chloride solution found in the huguy body: in liquid and tissues. Solutions through higher concentrations are used as antimicrobial agents, and additionally to prevent rotting and fermentation.
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Despite its many type of positive characteristics, in big quantities salt is extremely harmful and also poisonous for chickens, dogs and cats. Humans are also not recommended to consume most salt, as this might cause tissue swelling.