Sodium Sulfite

Synonym(s)

: sodium sulfide anhydrous, disodium sulfide

Mol. Formula

: Na2S

EC / List no.

: 215-211-5

CAS no.

: 1313-82-2

Molecular weight

: 126,05

Sodium sulfite is an inorganic sodium salt containing sulfite as a counter ion. It has a role as a food preservative and a reducing agent. It is an inorganic sodium salt and a sulfite salt. Contains a sulfite.

Application

» This substance is used in the following products: pH regulators and water treatment products and water treatment chemicals.
» This substance is used in: mining and municipal supply (eg electricity, steam, gas, water) and sewage treatment.
» Used in textile, leather or fur production.

Product Specifications

Physical and Chemical Properties
» Appears in white powder form.
» It is odorless and has a salty, sulphureous taste.

Properties

Characteristics	Unit	Value	Condition
Melting point	°C	69- 600	99.7 kPa
Density	g/ cm³	1.64	21.1 °C
Solubility	g/L	178	20 °C, soluble with water
LogP		-4
Refractive index		1.565
Autoignition temperature		Non flammable