Sodium Sulfite

Na₂SO₃

IUPAC: Sodium sulfite

CAS: 7757-83-7

Обзор

Sodium sulfite is a white solid used as a food preservative and antioxidant. It is the most common sulfiting agent in the food industry.

Состав

Элемент Символ Атомы Атомная масса
Oxygen O 3 15,9990
Sodium Na 2 22,9900
Sulfur S 1 32,0600

Элементный состав

O
Oxygen ×3
38,1%
Na
Sodium ×2
36,5%
S
Sulfur ×1
25,4%

Применение

  • • Food preservative
  • • Photography developer
  • • Water treatment
  • • Paper pulping

Интересные факты

  • ✦ Sulfite sensitivity affects about 1% of the population, more common in asthmatics

Безопасность

  • ⚠ Can trigger asthma in sensitive individuals

Structure

SMILES

[O-]S(=O)[O-].[Na+].[Na+]

Свойства

Тип
salt
Состояние
solid
Молярная масса
126,04 g/mol
Плотность
2,6330 g/cm³
Температура плавления
33,4 °C
Растворимость
280 g/L at 25°C

Molecular Descriptors

Exact Mass
125,9364
TPSA
82,4 Ų
H-Bond Donors
0
H-Bond Acceptors
4
Rotatable Bonds
0
Heavy Atoms
6
Complexity
18,0

Связанные соединения

Diammonium Phosphate

(NH₄)₂HPO₄

Ammonium Chloride

NH₄Cl

Barium Chloride

BaCl₂

Cadmium Sulfide

CdS

Calcium Sulfate

CaSO₄

Cerium(III) Chloride

CeCl₃

Copper(II) Sulfide

CuS

Ammonium Sulfate

(NH₄)₂SO₄

Ammonium Bicarbonate

NH₄HCO₃

Calcium Propionate

Ca(C₂H₅COO)₂

Frequently Asked Questions

What is Sodium Sulfite?
Sodium Sulfite (Na₂SO₃) is a salt compound with the IUPAC name Sodium sulfite.
What is the molecular weight of Sodium Sulfite?
Sodium Sulfite has a molar mass of 126.04 g/mol.
What state is Sodium Sulfite at room temperature?
Sodium Sulfite is a solid at room temperature.
Is Sodium Sulfite organic or inorganic?
Sodium Sulfite is classified as an inorganic compound.
What elements make up Sodium Sulfite?
Sodium Sulfite (Na₂SO₃) is composed of Oxygen (O), Sodium (Na), Sulfur (S).