tri-Sodium citrate dihydrate for analysis EMSURE?

Product Information

CAS number 6132-04-3
EC number 200-675-3
Grade ACS,ISO,Reag. Ph Eur
Hill Formula C?H?Na?O? * 2 H?O
Molar Mass 294.10?g/mol
HS Code 2918 15 00
Structure formula Image Structure formula Image
Quality Level MQ300

Specification

Assay (perchloric acid titration) 99.0 – 101.0?%
Assay (Perchloric acid titration, calc. on anhydrous substance) 99.0 – 101.0?%
Identity passes test
Appearance of solution passes test
Insoluble matter ??0.005?%
pH-value (5?%; water; 25??C) 7.5 – 9.0
Acidity or alkalinity passes test
Chloride (Cl) ??0.001?%
Oxalate (C?O?) ??0.0300?%
Phosphate (PO?) ??0.002?%
Sulfate (SO?) ??0.004?%
Total nitrogen (N) ??0.001?%
Heavy metals (ACS) ??0.0005?%
Heavy metals (as Pb) ??0.0005?%
Ca (Calcium) ??0.005?%
Fe (Iron) ??0.0005?%
NH? (Ammonia) ??0.003?%
Readily carbonisable substance passes test
Water 11.0 – 13.0?%
Corresponds to ACS,ISO,Reag. Ph Eur

Safety Information

Storage class 10 – 13 Other liquids and solids
WGK WGK 1 slightly hazardous to water
Disposal 3
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.

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