MERCK 106516 Sodium tiosulfate pentahydrate for analysis EMSURE® ACS,ISO,Reag. Ph Eur. 500 Gr
MERCK 106516 Sodium tiosulfate pentahydrate for analysis EMSURE® ACS,ISO,Reag. Ph Eur. 500 Gr
Sodium thiosulfate pentahydrate for analysis EMSURE® ACS,ISO,Reag. Ph Eur Synonyms: Antichlor Hill Formula: Na₂O₃S₂ * 5 H₂O EC Number: 231-867-5 Grade: ACS,ISO,Reag. Ph Eur CAS #: 10102-17-7 Molar Mass: 248.21 g/mol
Description
Catalogue Number 106516
Replaces SX0815-1; SX0815
Synonyms Antichlor
Product Information
CAS number 10102-17-7
EC number 231-867-5
Grade ACS,ISO,Reag. Ph Eur
Hill Formula Na₂O₃S₂ * 5 H₂O
Molar Mass 248.21 g/mol
HS Code 2832 30 00
Quality Level MQ300
Physicochemical Information
Density 1.74 g/cm3 (20 °C)
Melting Point 48 °C
pH value 6.0 – 7.5 (100 g/l, H₂O, 20 °C)
Bulk density 1000 kg/m3
Solubility 701 g/l
Toxicological Information
LD 50 oral LD50 Rat > 5000 mg/kg
Safety Information according to GHS
RTECS WE6660000
Storage class 10 – 13 Other liquids and solids
WGK WGK 1 slightly hazardous to water
Disposal 28
Aqueous solutions: Container D.
Storage and Shipping Information
Storage Store at +2°C to +30°C.
Specifications
Assay (iodometric) 99.5 – 101.0 %
Identity passes test
Appearance of solution passes test
Insoluble matter ≤ 0.005 %
pH-value (5 %; water, 25 °C) 6.0 – 7.5
pH-value (10 %; water) 6.0 – 7.5
Chloride (Cl) ≤ 0.008 %
Sulfate and sulphite (as SO₄) ≤ 0.1 %
Sulfide (S) passes test
Heavy metals (as Pb) ≤ 0.001 %
Total nitrogen (N) ≤ 0.002 %
Ca (Calcium) ≤ 0.002 %
Cu (Copper) ≤ 0.0005 %
Fe (Iron) ≤ 0.0005 %
K (Potassium) ≤ 0.001 %
Mg (Magnesium) ≤ 0.001 %
Pb (Lead) ≤ 0.0005 %
Corresponds to ACS, ISO, Reag. Ph Eur
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