Chemical formula of washing soda
By: Prof. Dr. Fazal Rehman Shamil | Last updated: February 3, 2024

The Chemical formula of washing soda is Na₂CO₃.

Characteristics of washing soda

Properties	Detail
Chemical formula	Na₂CO₃
Appearance	White crystalline powder
Odor	Odorless
Solubility	Soluble in water (strongly alkaline)
pH	Highly alkaline (pH of around 11)
Density	2.54 g/cm³
Melting point	851 °C (1564 °F)
Boiling point	Decomposes at high temperatures
Hygroscopicity	Absorbs moisture from the air
Reactivity	Can react with acids to produce carbon dioxide (CO2)
Uses	· Laundry detergent · stain remover · Water softener · pH adjuster in swimming pools · Glass production and Other industrial applications

Reaction of washing soda with Alkali metal

Alkali metal	Reaction with washing soda
Lithium (Li)	No reaction
Sodium (Na)	No reaction
Potassium (K)	2Na₂CO₃ + 2K are react and convert into 4Na + 2K₂O + 3CO₂
Rubidium (Rb)	2Na₂CO₃ + 2Rb are react and convert into 4Na + Rb₂O + 3CO₂
Cesium (Cs)	2Na₂CO₃ + 2Cs are react and convert into 4Na + Cs₂O + 3CO₂
Francium (Fr)	No data available

Reaction of washing soda with Alkaline earth metal

Alkaline earth metal	Reaction with washing soda
Beryllium (Be)	No reaction
Magnesium (Mg)	No reaction
Calcium (Ca)	Na₂CO₃ + CaCl₂ are react and convert into CaCO₃ + 2NaCl
Strontium (Sr)	Na₂CO₃ + SrCl₂ are react and convert into SrCO₃ + 2NaCl
Barium (Ba)	Na₂CO₃ + BaCl₂are react and convert into BaCO₃ + 2NaCl
Radium (Ra)	No data available

Reaction of washing soda with Transition metal

Transition metal	Reaction with washing soda
Iron (Fe)	Na₂CO₃ + FeSO₄ are react and convert into FeCO₃+ Na₂SO₄
Copper (Cu)	Na₂CO₃ + CuSO₄ are react and convert into CuCO₃ + Na₂SO₄
Zinc (Zn)	Na₂CO₃ + ZnSO₄ are react and convert into ZnCO₃ + Na₂SO₄
Chromium (Cr)	Na₂CO₃ + Cr₂O₃ + 4C are react and convert into 2Na₂CrO₄ + 3CO₂
Manganese (Mn)	Na₂CO₃ + MnSO₄are react and convert into MnCO₃+ Na₂SO₄
Nickel (Ni)	Na₂CO₃ + NiSO₄ are react and convert into NiCO₃ + Na₂SO₄
Cobalt (Co)	Na₂CO₃ + CoSO₄ are react and convert into CoCO₃ + Na₂SO₄
Mercury (Hg)	Na₂CO₃ + HgO + 2C are react and convert into Na₂O + Hg + 2CO₂
Silver (Ag)	Na₂CO₃ + 2AgNO₃ are react and convert into Ag₂CO₃ + 2NaNO₃
Gold (Au)	No reaction

Reaction of washing soda with Non-transition element

Non-transition element	Reaction with washing soda
Hydrogen (H)	No reaction
Helium (He)	No reaction
Carbon (C)	Na₂CO₃ + 2C are react and convert into Na₂C₂O₃ + CO₂
Nitrogen (N)	No reaction
Oxygen (O)	Na₂CO₃ + 2O₂ are react and convert into 2Na₂O + 3CO₂
Fluorine (F)	No reaction
Neon (Ne)	No reaction
Chlorine (Cl)	Na₂CO₃ + 2HCl are react and convert into 2NaCl + H₂O + CO₂
Argon (Ar)	No reaction
Sulfur (S)	Na₂CO₃ + H₂SO₄ are react and convert into Na₂SO₄ + H₂O + CO₂
Phosphorus (P)	No reaction
Selenium (Se)	Na₂CO₃ + H₂SeO₄ are react and convert into Na₂SeO₄ + H₂O + CO₂
Iodine (I)	Na₂CO₃ + 2HI are react and convert into 2NaI + H₂O + CO₂

Reaction of washing soda with Non-metal

Non-metal	Reaction with washing soda
Hydrogen (H)	No reaction
Carbon (C)	Na₂CO₃ + 2C are react and convert into Na₂C₂O₃ + CO₂
Nitrogen (N)	Na₂CO₃ + 2NH₄NO₃ are react and convert into Na₂CO₃·10H₂O + N₂↑ + 4H₂O
Oxygen (O)	Na₂CO₃ + 2O₂are react and convert into 2Na₂O + 3CO₂
Fluorine (F)	No reaction
Chlorine (Cl)	Na₂CO₃+ 2HCl are react and convert into 2NaCl + H₂O + CO₂
Bromine (Br)	Na₂CO₃ + 2HBr are react and convert into 2NaBr + H₂O + CO₂
Iodine (I)	Na₂CO₃ + 2HI are react and convert into 2NaI + H₂O + CO₂

Reaction of washing soda with Metalloid

Metalloid	Reaction with washing soda
Boron (B)	Na₂CO₃ + B₂O₃ are react and convert into Na₂B₄O₇ + CO₂↑
Silicon (Si)	Na₂CO₃ + SiO₂are react and convert into Na₂SiO₃ + CO₂↑
Germanium (Ge)	No reaction
Arsenic (As)	Na₂CO₃ + H₃AsO₄ are react and convert into NaH₂AsO₄ + CO₂↑ + H₂O
Antimony (Sb)	Na₂CO₃ + Sb₂O₃ are react and convert into NaSbO₂ + CO₂↑
Tellurium (Te)	No reaction

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