1.06528
Sodium disulfite
(sodium metabisulfite) for analysis EMSURE® ACS,Reag. Ph Eur
Synonym(s):
Sodium disulfite, Sodium metabisulfite, Sodium pyrosulfite, Disulfite, Pyrosulfite
About This Item
Recommended Products
grade
ACS reagent
Quality Level
Agency
reag. Ph. Eur.
product line
EMSURE®
Assay
98.0-100.5% (iodometric)
form
powder
potency
1540 mg/kg LD50, oral (Rat)
>2000 mg/kg LD50, skin (Rat)
impurities
≤0.005% Insoluble matter
pH
3.5-5 (20 °C, 50 g/L in H2O)
mp
150 °C (decomposition)
solubility
650 g/L
density
2.36 g/cm3 at 20 °C
bulk density
1000‑1200 kg/m3
anion traces
chloride (Cl-): ≤0.005%
thiosulfate (S2O32-): ≤0.05%passes test
cation traces
As: ≤0.0001%
Fe: ≤0.0005%
heavy metals (as Pb): ≤0.001%
storage temp.
2-30°C
InChI
1S/2Na.H2O5S2/c;;1-6(2)5-7(3)4/h;;(H,1,2)(H,3,4)/q2*+1;/p-2
InChI key
LDTLADDKFLAYJA-UHFFFAOYSA-L
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Analysis Note
Identity: passes test
Appearance of solution: passes test
pH-value (5 %; water): 3.5 - 5.0
Insoluble matter: ≤ 0.005 %
Chloride (Cl): ≤ 0.005 %
Thiosulfate (S₂O₃):
≤ 0.05 %
: passes test
Heavy metals (as Pb): ≤ 0.001 %
As (Arsenic): ≤ 0.0001 %
Fe (Iron): ≤ 0.0005 %
Legal Information
Signal Word
Danger
Hazard Statements
Precautionary Statements
Hazard Classifications
Acute Tox. 4 Oral - Eye Dam. 1
Supplementary Hazards
Storage Class Code
13 - Non Combustible Solids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Regulatory Listings
Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.
ISHL Indicated Name
Substances Subject to be Indicated Names
ISHL Notified Names
Substances Subject to be Notified Names
JAN Code
NAPE1065280100:
1065289050:
1065285000:
1065281000:
1065280100:
1065280000:
1065282500:
1065289999:
1065288889:
1065280500:
Certificates of Analysis (COA)
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