Sodium bicarbonate CAS 144-55-8
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Chemical Name: Sodium bicarbonate
CAS No.: 144-55-8
Molecular Fomula: CHNaO3
Molecular weight: 84.01
Appearance:White solution (7.5%)
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Description of Sodium bicarbonate
Sodium bicarbonate (IUPAC name: sodium hydrogen carbonate) is a chemical compound with the formula NaHCO3. It is a salt composed of sodium ions and bicarbonate ions. Sodium bicarbonate is a white solid that is crystalline but often appears as a fine powder. It has a slightly salty, alkaline taste resembling that of washing soda (sodium carbonate). The natural mineral form is nahcolite. It is a component of the mineral natron and is found dissolved in many mineral springs. It is among the food additives encoded by the European Union, identified as E 500. Since it has long been known and is widely used, the salt has many related names such as baking soda, bread soda, cooking soda, and bicarbonate of soda. In colloquial usage, the names sodium bicarbonate and bicarbonate of soda are often truncated. Forms such as sodium bicarb, bicarb soda, bicarbonate, bicarb, or even bica are common. The word saleratus, from Latin sal æratus meaning “aerated salt”, was widely used in the 19th century for both sodium bicarbonate and potassium bicarbonate.
The prefix “bi” in “bicarbonate” comes from an outdated naming system and is based on the observation that there is twice as much carbonate (CO3) per sodium in sodium bicarbonate (NaHCO3) as there is carbonate per sodium in sodium carbonate (Na2CO3) and other carbonates. The modern way of analyzing the situation based on the exact chemical composition (which was unknown when the name “sodium bicarbonate” was coined) says this the other way around: there is half as much sodium in NaHCO3 as in Na2CO3 (Na versus Na2).
Basic Info of Sodium bicarbonate
Carbonic acid monosodium salt;Sodium Hydrogen Carbonate;Sodium hydrogencarbonate;Sodium hydrogenocarbonate;sobatum;Expand
Appearance & Physical State
White powder or superfime crystal
9 g/100 mL (20 ºC)
2.58E-05mmHg at 25°C
What is Sodium bicarbonaten?
With the progress of science and technology and the development of society, chemical products have invariably permeated our daily lives, in medicine, food, cosmetics, electronics, industry, and other areas, becoming an essential part of our lives. One such product is Sodium bicarbonate which has developed particularly rapidly in recent years. Do you know about Sodium bicarbonate?
The official answer:Sodium bicarbonate, with the molecular formula NaHCO₃, is an inorganic salt, a white crystalline powder, odourless, alkaline in taste and easily soluble in water. It decomposes slowly in humid air or hot air, producing carbon dioxide, and is completely decomposed when heated to 270℃. When exposed to acid, it decomposes strongly to produce carbon dioxide.
What’s the application of Sodium bicarbonate?
Sodium bicarbonate can be directly used as a raw material in the pharmaceutical industry for the treatment of excessive stomach acid, in food processing, it is one of the most widely used relaxing agents for the production of biscuits, bread, etc., and is the generator of carbon dioxide in fizzy drinks; it can be compounded with alum to make alkaline baking powder, or with soda ash to make civil soda ash; it can also be used as a butter preservative, used in the production of acid and alkali fire extinguishers and foam fire extinguishers, in the rubber industry It can be used in rubber and sponge production; in metallurgy industry, it can be used as flux for casting steel ingots; in machinery industry, it can be used as molding aid for casting steel (sand turning) sand; in printing and dyeing industry, it can be used as colour fixing agent for dyeing and printing, acid and alkali buffering agent, after-treatment agent for fabric dyeing and finishing; adding baking soda in dyeing can prevent yarn cylinder from producing colour flowers; in medicine industry, it can be used as raw material for acid making agent; it can also be used as detergent for wool and for Agricultural seed soaking, etc.
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