‘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 |
