5,3-AB-CHMFUPPYCA NEW

Chinese name: sodium formate

English name: Sodium formate

CAS: 141-53-7

EINECS number: 205-488-0

Molecular formula: CHNaO2

MDL number: MFCD00013101

Molecular weight: 68.01

Appearance: Sodium formate (141-53-7) is a white powder. Melting point 253℃. The relative density is 1.919. Soluble in water and glycerin, slightly soluble in ethanol. Insoluble in ether. Sodium formate decomposes at high temperatures into sodium oxalate and hydrogen, and finally into sodium carbonate. It has a slight formic acid odor and is absorbent.

Solubility: soluble in water and glycerin, slightly soluble in ethanol, insoluble in ether.

Melting point: 259-262 °C(lit.)

Boiling point: 360 °C

Density: 1.16 g/mL at 20 °C

Vapor pressure: 0Pa at 25℃

Storage conditions: 2-8°C

Solubility: H2O: 8 M at 20 °C, clear, colorless

Acidity coefficient (pKa) : 3.86[at 20 ℃]

Form: crystalline powder

Specific gravity: 1.92

Color: White to off-white

PH value: 7.0-8.5 (50g/l, H2O, 20℃)

Odor: A slight smell of formic acid

Acid-base indicator discoloration ph: range 7-8.5

Water solubility: Soluble in water

Sensitivity: hygroscopicity

Hydrolysis sensitivity 0: forms stable aqueous solutions

Maximum wavelength (λmax)λ: 260 nm Amax: 0.02

λ: 280 nm Amax: 0.01

Merck: 14,8621

BRN: 3595134

Stability: Stable. Incompatible with strong oxidants and acids. Keep away moisture.

LogP: -2.1 at 20℃

category

Organic raw materials: salts of carboxylate and its derivatives

Use 1

Used in alkyd resin coatings, plasticizers, high explosives, acid resistant materials, aviation lubricating oil, adhesive additives

Preparation method

Method one

It is formed by the reaction of carbon monoxide and sodium hydroxide at 160℃ and 2MPa.

Method 2

1. It is obtained by the reaction of carbon monoxide and sodium hydroxide at 150-170℃ and about 2MPa. In fact, the production process of sodium formate is part of the production of oxalic acid, and the concentration of sodium hydroxide solution used for the absorption reaction is 25%-30%. Sodium formate can also be prepared by the reaction of formic acid with sodium oxyoxide or sodium bicarbonate. Raw material consumption quota: carbon monoxide (> 28%) 1630kg/t, caustic soda (> 30%) 2160kg/t. 2. Pentaerythritol byproducts.