1.06505

Supelco

Sodium dithionite

EMPLURA®

Synonym(s):
Sodium dithionite, Sodium hydrosulfite, Sodium hypodisulfite
Empirical Formula (Hill Notation):
Na2O4S2
CAS Number:
Molecular Weight:
174.11
MDL number:
EC Index Number:
231-890-0

storage conditions

Store at +5°C to +30°C.

Quality Level

assay

≥85.0% (iodometric)

form

powder

autoignition temp.

>200 °C

potency

2500 mg/kg LD50, oral (Rat)

pH

5.5-8.5 (20 °C, 50 g/L in H2O)

mp

100 °C (decomposition)

transition temp

flash point >100 °C

solubility

250 g/L (slow decomposition)

density

2.5 g/cm3 at 20 °C

bulk density

1250 kg/m3

anion traces

chloride (Cl-): ≤0.05%

cation traces

Fe: ≤ 0.005%

InChI

1S/2Na.H2O4S2/c;;1-5(2)6(3)4/h;;(H,1,2)(H,3,4)/q2*+1;/p-2

InChI key

JVBXVOWTABLYPX-UHFFFAOYSA-L

Related Categories

Analysis Note

Assay (iodometric): ≥ 85.0 %
Identity: passes test
Chloride (Cl): ≤ 0.05 %
Fe (Iron): ≤ 0.005 %

Legal Information

EMPLURA is a registered trademark of Merck KGaA, Darmstadt, Germany
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