Specification Sheet

Product Name
Sodium phosphate dibasic dihydrate BioUltra, for molecular biology, ≥99.0% (T)

Product Number
71643

Product Brand
SIGMA

CAS Number
10028-24-7

Molecular Weight
177.99

Test

Specification

APPEARANCE (COLOR)Colorless or White
APPEARANCE (FORM)Crystals
TITRATION99.0 - 101.0 %
TITRATION (METHOD)BACK TITRATION
METAL TRACE ANALYSIS (ICP)CORRESPONDS TO REQUIREMENTS
ALUMINIUM (ICP)≤ 5 mg/kg
BARIUM (ICP)≤ 5 mg/kg
BISMUTH (ICP)≤ 5 mg/kg
CALCIUM (ICP)≤ 10 mg/kg
CADMIUM (ICP)≤ 5 mg/kg
COBALT (ICP)≤ 5 mg/kg
CHROMIUM (ICP)≤ 5 mg/kg
COPPER (ICP)≤ 5 mg/kg
IRON (ICP)≤ 5 mg/kg
POTASSIUM (ICP)≤ 50 mg/kg
LITHIUM (ICP)≤ 5 mg/kg
MAGNESIUM (ICP)≤ 5 mg/kg
MANGANESE (ICP)≤ 5 mg/kg
MOLYBDENUM (ICP)≤ 5 mg/kg
NICKEL (ICP)≤ 5 mg/kg
LEAD (ICP)≤ 5 mg/kg
STRONTIUM (ICP)≤ 5 mg/kg
ZINC (ICP)≤ 5 mg/kg
ARSENIC TRACES (MHS-AAS)≤ 0.1 mg/kg
TOTAL SULFUR AS SO4 (ICP)≤ 50 mg/kg
CHLORIDE (CL)≤ 10 mg/kg
TOTAL NITROGEN≤ 10 mg/kg
EXTRANEOUS ACTIVITIESDNAses, RNAses, Proteases, Phosphatases Not Detectable
SOLUBILITY (METHOD)0.5M IN H2O
APPEARANCE (SOLUTION)CLEAR COLORLESS
PH (SOLUTION)8.9 - 9.2
RESIDUE (FILTER TEST)NO RESIDUE
UV - ABS. AT 260 NM≤ 0.03
UV - ABS. AT 280 NM≤ 0.03
RECOMMENDED RETEST PERIOD42 MONTHS

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