Sodium Bicarbonate

Catalog	ACM144558
CAS	144-55-8
Structure
Category	Flocculant
Description	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the 19th century for both sodium bicarbonate and potassium bicarbonate.The prefix “bi” in “bicarbonate” comes from an outdated naming system and is based on the observation that there is twice as much carbonate (CO3) per sodium in sodium bicarbonate (NaHCO3) as there is carbonate per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).
Synonyms	Carbonic acid monosodium salt;Sodium Hydrogen Carbonate;Sodium hydrogencarbonate;Sodium hydrogenocarbonate;sobatum
IUPAC Name	sodium; hydrogen carbonate
Molecular Weight	84
Molecular Formula	CHNaO3
Canonical SMILES	C(=O)(O)[O-].[Na+]
InChI	InChI=1S/CH₂O3.Na/c2-1(3)4;/h(H2,2,3,4);/q;+1/p-1
InChI Key	UIIMBOGNXHQVGW-UHFFFAOYSA-M
Boiling Point	851°C
Melting Point	270ºC
Flash Point	169.8ºC
Density	2.159
Solubility	1 in 10 % at 77° F (NTP, 1992);Soluble in water. Insoluble in ethanol;In water, 10.3 g/100 g water at 25 °C;Soluble in 10 parts water at 25 °C; 12 parts water at about 18 °C;Solubility in water = 6.4, 7.6, 8.7, 10.0, 11.3, 12.7, 14.2, 16.5, and 19.1 g/100g solution at 0, 10, 20, 30, 40, 50, 60, 80, and 100 °C, respectively; Solubility in water = 6.9, 8.2, 9.6, 11.1, 12.7, 14.5, 16.5, 19.7, and 23.6 g/100g H₂O at 0, 10, 20, 30, 40, 50, 60, 80, and 100 °C, respectively. Solubility is lower in the presence of sodium carbonate;Insoluble in ethanol;Solubility in water, g/100ml at 20 °C: 8.7
Appearance	White powder or superfime crystal
EC Number	205-633-8
HS Code	2836300000
LogP	-1.11230
MDL Number	MFCD00003528
PSA	6.36
Refractive Index	1.5
RTECS	VZ0950000
Safety Statements	S24/25
Stability	Stable.
Storage Conditions	2-8ºC
Vapor Pressure	2.58E-05mmHg at 25°C
WGK Germany	1

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