Name the Compound SO3

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‘What is the name of the compound SO3?’ is one of the questions commonly available on Chemistry’s test either on school, a job test or others. When taking the Chemical or Physics’ test, you may have a bigger chance to find the question related to the names of compounds.

If you happen to have a Chemistry exam and it requires you to answer the name of the compound SO3 but you don’t know the correct answer, you shouldn’t worry, since this post will show you the correct answer to the question of the name of the compound SO3. Okay, let’s dive into our post below!

What Is the Name of the Compound SO3?

The correct answer to the question ‘the name of the compound SO3’ is sulfur trioxide or sulfur(VI) oxide whose Lewis structure is proposed as (O=)2S+−O−. It is barely a has under standard conditions that is the acid anhydride of sulfuric acid, H2SO4.

What Is SO3?

Sulfur Trioxide is the chemical compound with the formula SO3 that is any of several compounds of sulfur and oxygen. It is known that the dioxide is the acid anhydride (that means a compound which combines with water to form an acid) of sulfurous acid.

Sulfur dioxide is a heavy, colourless, poisonous gas with a bad odor, familiar as the smell of a just-struck match. This compound occurs in nature in volcanic gases and in solution in the waters of some warm springs that is commonly prepared industrially by the burning in air of oxygen of sulfur or such compounds of sulfur as iron pyrite or copper pyrite.

Just like other sulfur oxide, sulfur trioxide is a colourless compound which presents at room temperature either as volatile liquid or in any of three allotropic solid forms. Well, the liquid will boil at 44.6° C (112° F) and then solidifies at 16.83° C (62° F). For the most stable of the solid forms, it will melt at 62° C (144° F).

Sulfur trioxide is formed by the reaction of sulfur dioxide and oxygen in the presence of a catalyst. It fumes vigorously in contact with moist air and will dissolve in water, realising much heat and forming sulfuric acid.

Well, the solutions of the trioxide in sulfuric acid are mentioned fuming sulfuric acid or oleum. Just like sulfuric acid, sulfur trioxide is a very powerful, dehydrating agent that is very corrosive and reactive chemically.

The Chemical Reactions of SO3

It is known that sulfur trioxide undergoes a lot of reactions, here are they:

  • Hydration and hydrofluorination: SO3 + H2O → H2SO4 (ΔHf = −200 kJ/mol)[12] (SO3 is the anhydride of H2SO4. So, it is susceptible to hydration)
  • Deoxygenation: 2 SO3 + N2O5 → [NO2]2S2O7 (SO3 will react with dinitrogen pentoxide to give the nitronium salt of pyrosulfate.
  • Oxidant: SO3 + SCl2 → SOCl2 + SO2 (Sulfur trioxide is an oxidant that will oxidizes sulfur dichloride to thionyl chloride)
  • Lewis acid: SO3 is known as a strong Lewis acid that readily forms adducts with Lewis bases. With pyridine, SO2 actually gives the sulfur trioxide pyridine complex.
  • Sulfonating agent: SO3 is known as a potent sulfonating agent. For example, it adds SO3 groups to substrates. For activated substrates, the Lewis base addition of sulfur trioxide is an effective sulfonating agent.

What Is the SO3 Compound For?

So far, sulfur trioxide is a reagent in sulfonation reactions. Well, the processes of these compounds would be detergents, dyes and pharmaceuticals. Furthermore, sulfur trioxide is produced in situ from sulfuric acid or is also used as a solution in the acid.

Here’s a List of Some Chemical’s Compound Names!

In addition to knowing the name of the compound SO3, you may also need some other chemical compound names that you will also find on the Chemistry’s test. No worries! This post will also show you the list of Chemical’s Compound names to make it easier for you to answer the chemical compound names. Here are they:

Molecular formula Compound name
CH3COOH Acetic acid
HCl Hydrochloric acid
H2SO4 Sulfuric acid
CH3COO– Acetate
NH3 Ammonia
HNO3 Nitric acid
H3PO4 Phosphoric acid
Na3PO4 Sodium phosphate
CaCO3 Calcium carbonate
(NH4)2SO4 Ammonium sulfate
H2CO3 Carbonic acid
NaHCO3 Sodium bicarbonate
NaOH Sodium hydroxide
Ca(OH)2 Calcium hydroxide
C2H5OH Ethanol
HBr Hydrobromic acid
H2SO4 Sulfuric acid
HNO2 Nitrous acid
KOH Potassium hydroxide
AgNO3 Silver nitrate
Na2CO3 Sodium carbonate
NaCl Sodium chloride
(C6H10O5)n Cellulose
Mg(OH)2 Magnesium hydroxide
CH4 Methane
NO2 Nitrogen dioxide
KOH Potassium hydroxide
NaNO3 Sodium nitrate
H2SO3 Sulfurous acid
Al2(SO4)3 Aluminium sulfate
Al2O3 Aluminum oxide
NH3 Ammonia
NH4NO3 Ammonium nitrate
(NH4)3PO4 Ammonium phosphate
Ba(OH)2 Barium hydroxide
CCl4 Carbon tetrachloride
C6H8O7 Citric acid
HCN Hydrocyanic acid
C7H6O3 Salicylic Acid
HI Hydroiodic acid
HClO Hypochlorous acid
Fe2O3 Iron iii oxide
Mg3(PO4)2 Magnesium phosphate
C2H3NaO2 Sodium acetate
Na2SO4 Sodium sulfate
C12H22O11 Sucrose
KNO3 Potassium nitrate
NH4HCO3 Ammonium bicarbonate
NH4Cl Ammonium chloride
NH4OH Ammonium hydroxide
Ca(NO3)2 Calcium nitrate
CaO Calcium oxide
CO Carbon monoxide
Cl2 Chlorine gas
C6H6O Phenol
H2O2 Hydrogen peroxide
OH– Hydroxide
MgCl2 Magnesium chloride
Mg(OH)2 Magnesium hydroxide
KCl Potassium chloride
KI Potassium iodide
SO2 Sulfur dioxide
C3H8O3 Glycerin
(NH4)2SO4 Ammonium sulfate
Ba(NO3)2 Barium nitrate
C4H6O4Ca Calcium acetate
H2SO3 Sulfurous Acid
Fe2O3 Iron oxide
K2CO3 Potassium carbonate
AgCl Silver chloride
NaI Sodium iodide
Na2O Sodium oxide
Na2S Sodium sulfide
C12H22O11 Sucrose
Zn(NO3)2 Zinc nitrate
Al2(SO4)3 Aluminium Sulfate
C20H14O4 Phenolphthalein
Mg(NO3)2 Magnesium nitrate
SiO2 Silicon dioxide
C3H6O Acetone
C6H6O2 Hydroquinone
C5H5N Pyridine
C2H3O2NH4 Ammonium acetate
C8H10 Xylene
BaSO4 Barium sulfate
C6H6 Benzene
CHO3– Bicarbonate
CrO42- Chromate
C4H8O Methyl Ethyl Ketone
CN− Cyanide
C2HCl3O2 Trichloroacetic acid
MgSO4 Magnesium sulfate
CH3OH Methanol
NO2 Nitrogen dioxide
O Oxygen
C16H18ClN3S Methylene blue
Na2SO3 Sodium sulfite
SO3 Sulfur trioxide
AlPO4 Aluminum phosphate
C18H36O2 Stearic acid
N2O Dinitrogen monoxide
CO Carbon monoxide
H2CO3 Carbonic acid
Na2CO3 Sodium carbonate
TiO2 Titanium dioxide
C2H3N Acetonitrile
H2C2O4 Oxalic acid
K2Cr2O7 Potassium dichromate
C7H6O3 Salicylic acid
NaBr Sodium bromide
NaClO Sodium hypochlorite
Zn(CH3COO)2(H2O)2 Zinc acetate
ZnCl2 Zinc chloride
Zn(OH)2 Zinc hydroxide
MgCO3 Magnesium carbonate
KClO3 Potassium chlorate
N2H4 Hydrazine
C6H8O6 Ascorbic acid
C7H6O2 Benzoic acid
C6H6O2 Resorcinol
Cl2 Chlorine
NH4NO3 Ammonium nitrate
(NH4)3PO4 Ammonium phosphate
CCl4 Carbon tetrachloride

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