Specification Sheet

Product Name
Magnesium chloride solution BioUltra, for molecular biology, 2 M in H2O

Product Number
68475

Product Brand
SIGMA

CAS Number
7786-30-3

Molecular Weight
95.21

Test

Specification

APPEARANCE (COLOR)Colorless
APPEARANCE (FORM)Liquid
TITRATION (METHOD)KOMPLEXOMETRIC
TITRATION (KT) (MOLARITY)1.90 - 2.10 mol/l
DENSITY D20/41.040 - 1.240
METAL TRACE ANALYSIS (ICP)CORRESPONDS TO REQUIREMENTS
ALUMINIUM (ICP)≤ 1.0 mg/kg
BARIUM (ICP)≤ 1.0 mg/kg
BISMUTH (ICP)≤ 1.0 mg/kg
CALCIUM (ICP)≤ 10 mg/kg
CADMIUM (ICP)≤ 1.0 mg/kg
COBALT (ICP)≤ 1.0 mg/kg
CHROMIUM (ICP)≤ 1.0 mg/kg
COPPER (ICP)≤ 1.0 mg/kg
IRON (ICP)≤ 1.0 mg/kg
POTASSIUM (ICP)≤ 500 mg/kg
LITHIUM (ICP)≤ 1.0 mg/kg
MANGANESE (ICP)≤ 1.0 mg/kg
MOLYBDENUM (ICP)≤ 1.0 mg/kg
SODIUM (ICP)≤ 100 mg/kg
NICKEL (ICP)≤ 1.0 mg/kg
LEAD (ICP)≤ 1.0 mg/kg
STRONTIUM (ICP)≤ 1.0 mg/kg
ZINC (ICP)≤ 1.0 mg/kg
ARSENIC TRACES (MHS-AAS)≤ 0.1 mg/kg
TOTAL SULFUR AS SO4 (ICP)≤ 20 mg/kg
TOTAL NITROGEN≤ 2.0 mg/kg
PHOSPHATE (PO4)≤ 5.0 mg/kg
EXTRANEOUS ACTIVITIESDNAses, RNAses, Proteases, Phosphatases Not Detectable
SOLUBILITY (METHOD)IN SUBSTANZ (2M)
APPEARANCE (SOLUTION)CLEAR COLORLESS
PH (SOLUTION)3.0 - 5.0
RESIDUE (FILTER TEST)NO RESIDUE
UV - ABS. AT 260 NM≤ 0.04
UV - ABS. AT 280 NM≤ 0.03
RECOMMENDED RETEST PERIOD48 MONTHS