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Boric acid

SIGMA/15663 - BioUltra, for molecular biology, ≥99.5% (T)

CAS Number: 10043-35-3
Empirical Formula (Hill Notation): H3BO3
Molecular Weight: 61.83
EC Number: 233-139-2
MDL Number: MFCD00011337
Linear Formula: H3BO3
Product Type: Chemical

Catalog Number PKG Qty. Price Quantity
45-15663-250G 250 g
$56.20
1/EA
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45-15663-1KG 1 kg
$160.00
1/EA
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λ 1 M in H2O
anion traces chloride (Cl-): ≤5 mg/kg
  phosphate (PO43-): ≤5 mg/kg
  sulfate (SO42-): ≤5 mg/kg
assay ≥99.5% (T)
cation traces Al: ≤5 mg/kg
  As: ≤0.5 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: ≤50 mg/kg
  Li: ≤5 mg/kg
  Mg: ≤5 mg/kg
  Mn: ≤5 mg/kg
  Mo: ≤5 mg/kg
  Na: ≤50 mg/kg
  Ni: ≤5 mg/kg
  Pb: ≤5 mg/kg
  Sr: ≤5 mg/kg
  Zn: ≤5 mg/kg
density 1.49 g/cm3 at 23 °C
form powder or crystals
grade for molecular biology
impurities DNases, none detected
  insoluble matter, passes filter test
  phosphatases, none detected
  proteases, none detected
  RNases, none detected
  <0.05% non-volatile substances in MeOH/HCl
InChI 1S/BH3O3/c2-1(3)4/h2-4H
InChI key KGBXLFKZBHKPEV-UHFFFAOYSA-N
loss ≤0.5% loss on drying, 20 °C (HV)
mp 160 °C (dec.) (lit.)
pH 3.6-4.4 (25 °C, saturated solution in H2O)
product line BioUltra
Quality Level 200 
SMILES string OB(O)O
solubility H2O: 1 M, clear, colorless (hot)
technique(s) DNA purification: suitable
  RNA purification: suitable
UV absorption λ: 260 nm Amax: 0.015
  λ: 280 nm Amax: 0.010
vapor pressure 2.6 mmHg ( 20 °C)
Application: Boric acid can be used to study molecular biology, DNA and RNA purification, biological buffers and molecular biology reagents. Boric acid has been used to test the toxic effects of boron on growth and antioxidant system parameters of maize (Zea mays L.) roots. Boric acid has also been used to study the effect of time period after boric acid injection on (10)B absorption in different regions of adult male rat′s brain.
Other Notes: Running buffer component with methylmercuric hydroxide gels; Buffer component in DNA digest analysis with capillary electrophoresis
Purity ≥99.5% (T)
mp 160 °C (dec.) (lit.)
Density 1.49 g/cm3 at 23 °C
UNSPSC 12161700

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