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71402 Sigma

Sodium citrate tribasic dihydrate

BioUltra, for molecular biology, ≥99.5% (NT)

Synonym: Citric acid trisodium salt dihydrate, Trisodium citrate dihydrate

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Properties

Related Categories Alphabetical, Apoptosis and Cell Cycle, BioUltra, BioUltra Buffers, Biochemicals and Reagents,
grade   for molecular biology
InChI Key   NLJMYIDDQXHKNR-UHFFFAOYSA-K
product line   BioUltra
assay   ≥99.5% (NT)
impurities   DNases, none detected
  RNases, none detected
  insoluble matter, passes filter test
  phosphatases, none detected
  proteases, none detected
  11-13% Water (Karl Fischer)
pH   7.5-9.0 (25 °C, 0.1 M in H2O)
mp   >300 °C(lit.)
solubility   H2O: soluble0.1 M at 20 °C, clear, colorless
anion traces   chloride (Cl-): ≤10 mg/kg
  sulfate (SO42-): ≤50 mg/kg
cation traces   Al: ≤5 mg/kg
  As: ≤0.1 mg/kg
  Ba: ≤5 mg/kg
  Bi: ≤5 mg/kg
  Ca: ≤10 mg/kg
  Cd: ≤5 mg/kg
  Co: ≤5 mg/kg
  Cr: ≤5 mg/kg
  Cu: ≤5 mg/kg
  Fe: ≤5 mg/kg
  K: ≤100 mg/kg
  Li: ≤5 mg/kg
  Mg: ≤5 mg/kg
  Mn: ≤5 mg/kg
  Mo: ≤5 mg/kg
  NH4+: ≤10 mg/kg
  Ni: ≤5 mg/kg
  Pb: ≤5 mg/kg
  Zn: ≤5 mg/kg
λ   0.1 M in H2O
UV absorption   λ: 260 nm Amax: 0.01
  λ: 280 nm Amax: 0.01

Description

Other Notes

Buffer component in the preparation of total ribosomal RNA from E. coli.

Price and Availability


Interactive Buffer Table

Microcon Centrifugal Filters

Biomedical Applications
Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
1
Protocols & Articles

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Peer-Reviewed Papers
15

References

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