Sodium formate |141-53-7|

CAS No141-53-7

Molecular formulaCHNaO2

Mol. mass: 68.0072  

Solubilitysoluble in water

Structural formula


Introduction: Sodium formate, HCOONa, is the sodium salt of formic acid, HCOOH. It usually appears as a white deliquescent powder. The Sodium formate, with the CAS registry number 141-53-7,is also known as Thionyl dichloride. It belongs to the product categories of Salachlor; Formic acid sodium salt.This chemical's molecular formula is CHNaO2 and molecular weight is 68.01. What's more,Its systematic name is Sodium formate.It is white crystals,which is stable,incompatible with strong oxidizing agents,strong acids,protect from moisture.Its storage temperature is 2-8°C.The Sodium formate is irritating to eyes, respiratory system and skin.When you use it ,wear suitable protective clothing, gloves and eye/face protection.In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . 

 

Preparation: Sodium formate can be prepared in the laboratory by neutralizing formic acid with sodium carbonate. It can also be obtained by reacting chloroform with an alcoholic solution of sodium hydroxide.

 

Production of Sodium formate:

Reacting chloroform with an alcoholic solution of sodium hydroxide produces sodium formate; neutralizeing formatic acid with sodium carbonate also produces Sodium formate. The formular is as following:

CHCl3 + 4NaOH → HCOONa + 3NaCl + 2H2O

by reacting sodium hydroxide with chloral hydrate:

2HCl3(OH)2 + NaOH → CHCl3 + HCOONa + H2O

The latter method is better than the former, since the low aqueous solubility of CHCl3 makes it easier to separate out from the sodium formate solution than the soluble NaCl would be by fractional crystallization.

The commercial way to produce sodium formate is to bsorbing carbon monoxide under pressure in solid sodium hydroxide at 160 °C, showing below:

CO + NaOH → HCOONa


Use: Sodium formate is used in several fabric dyeing and printing processes. It is also used as a buffering agent for strong mineral acids to increase their pH, as a feed additive, and as a de-iceing agent.

In structural biology, sodium formate can be used as a cryoprotectant for X-ray diffraction experiments on protein crystals, which are typically conducted at a temperature of 100K to reduce the effects of radiation damage.

 

Application:

1. Leather industry: Tanning, etc.

2. Printing and dyeing industry

3. Sodium hydrosulfite

4. Chemical industry: for making of Formic Acid

5. Drilling fluid

6. Snow melting agent


Specification

Item

Specification

Appearance

White crystal powder

Purity (%)

98.0

NaOH (%)

0.10

Na2CO3 (%)

0.10

NaCl (%)

0.05

Na2S (%)

0.005

Water (%)

0.30

Iron (Fe, %)

negative


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