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Sodium sulfite (sodium sulphite) is the inorganic compound with the chemical formula Na 2 SO 3.A white, water-soluble solid, it is used commercially as an antioxidant and preservative.
[3] [4] Antichlors are very useful in the textile industry because bleaching of compounds using chlorine is a standard practice. However, the use of sodium bisulfite in the decomposition of excess hypochlorite can lead to harmful byproducts when it comes into contact with water at the concentrations present for industrial use. [4]
Sodium metabisulfite, despite not being flammable, decomposes in 150 °C of heat releasing toxic gasses when decomposed. It is corrosive when dissolved in water. Some people who are sulfite sensitive may experience an allergic reaction to sodium meta bisulfite, sometimes severe, resulting in labeling requirements for food safety. [20]
N 2: 0 Ammonia (ammonium hydroxide) Aqueous NH 3 (NH 4 OH) −80.8 Ammonia: Gas NH 3: −46.1 Ammonium nitrate: Solid NH 4 NO 3: −365.6 Ammonium chloride: Solid NH 4 Cl −314.55 Nitrogen dioxide: Gas NO 2: 33.2 Hydrazine: Gas N 2 H 4: 95.4 Hydrazine: Liquid N 2 H 4: 50.6 Nitrous oxide: Gas N 2 O 82.05 Nitric oxide: Gas NO 90.29 Dinitrogen ...
Solutions of bisulfite are typically prepared by treatment of sulfur dioxide with aqueous base: [3]. SO 2 + OH − → HSO − 3. HSO − 3 is the conjugate base of sulfurous acid, (H 2 SO 3).
Sulfurous acid is commonly known to not exist in its free state, and due to this, it is stated in textbooks that it cannot be isolated in the water-free form. [4] However, the molecule has been detected in the gas phase in 1988 by the dissociative ionization of diethyl sulfite. [5]
This also called '3:2 mullite' to distinguish it from 2Al 2 O 3 ·SiO 2, Al 4 SiO 8 '2:1 mullite'. 2Al 2 O 3 ·SiO 2, Al 4 SiO 8 '2:1 mullite'. [6] The above list mentions ternary materials (Si-Al-O). Kaolinite is a quaternary material (Si-Al-O-H). Also called aluminium silicate dihydrate, kaolinite occurs naturally as a mineral. Its formula is ...
Sodium bisulfate, also known as sodium hydrogen sulfate, [a] is the sodium salt of the bisulfate anion, with the molecular formula NaHSO 4.Sodium bisulfate is an acid salt formed by partial neutralization of sulfuric acid by an equivalent of sodium base, typically in the form of either sodium hydroxide (lye) or sodium chloride (table salt).