sodium metabisulphite 97% ar

Six white plastic bottles with red caps of varying sizes are lined up in ascending order against a plain gray background.

Three chemical solution bottles with red caps are arranged side by side against a gray background. The labels read "Methyl Orange Indicator Solution" and "Fehling's Solution No. A.

Three white chemical bottles with red caps, labeled "Chemnovyo," arranged in order of size against a plain gray background.

Four plastic bottles of chemical reagents with red caps, labeled for different substances, are arranged in size order against a gray background.

Five black plastic chemical bottles of various sizes are arranged on a gray surface against a dark gray background. Labels are visible but not fully legible.

Six brown pharmaceutical containers of varying sizes with white and red ChemBooz labels are arranged in a row against a plain gray background.

Three black plastic bottles of nitric acid with white hazard labels are arranged in a row against a grey background.

Two brown glass bottles with red caps, labeled as chemical containers, are placed side by side on a gray surface with a dark background.

Two white plastic chemical containers with black lids, labeled "Chemnovato." The left contains Magnesium Sulphate, and the right contains Acetyl Salicylic Acid, both on a gray background.

Three chemical bottles labeled Toluene, Iso-Propyl Alcohol, and Chloroform are arranged side by side on a gray background.

Six brown glass bottles of varying sizes with white labels and black or white caps, containing Trichloroacetic Acid 99% AR from Chemoxy, are arranged in a row on a gray background.

Two brown glass bottles labeled "Chloroform 99.8% for HPLC" with hazard symbols, placed side by side on a neutral gray background.

Three dark brown bottles with red caps and Chemnovatic labels contain hydrochloric acid, nitric acid, and sulfuric acid, arranged side by side on a gray background.

Specification

Description

Sodium pyrosulphite; Sodium disulphite

CAS	7681-57-4
Molecular Formula	Na2S2O5
Molecular Weight	190.10
Shelf Life	60 Months

Physical Properties
Physical State at 20 °C	Solid	Colour	White crystalline
Odour	Sulphorous	pH Value	4.5 at 50 g/l at 20 °C
Melting Point/ Freezing Point [°C]	300 °C	Density [g/cm3]	1.48
Solubility in Water [% weight]	650 g/l at 20 °C	Partition Coefficient Log POW Octanol / Water at 20°C	-3.7

Specifications
Appearance	White crystalline powder	Assay	Min. 97.0%
Insoluble Matter in Water	Max. 0.005%	Chloride (Cl)	Max. 0.005%
Arsenic (As)	Max. 0.0001%	Phosphate (Po4)	Max. 0.002%
Thiosulphate (S2O3)	Max. 0.05%	Heavy Metal (As Pb)	Max. 0.001%
Iron (Fe)	Max. 0.002%

Dangerous Goods Information
UN Number	–	DG Class	–

Safety Information & Hazard Symbols
Symbol	GHS05, GHS07
Signal Word	Danger
Hazard Statement	H302-H318
Precaution Statement	P280-P305 + P351 + P338

sodium metabisulphite 97% ar

$20.80

Size

UOM

Clear

SKU C02445-00500-HS Category Chemicals