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84392 Sigma-Aldrich

Nitric acid

purum p.a., fuming, packed in coated, shock- and leak-protected glass bottle, ≥99% (T)

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Properties

Related Categories Acids, Acids & Bases, Chemical Synthesis, Inorganic Acids, Synthetic Reagents More...
vapor pressure   8 mmHg ( 20 °C)
InChI Key   GRYLNZFGIOXLOG-UHFFFAOYSA-N
grade   purum p.a.
assay   ≥99% (T)
quality   packed in coated, shock- and leak-protected glass bottle
bp   120.5 °C(lit.)
anion traces   chloride (Cl-): ≤10 mg/kg
  sulfate (SO42-): ≤200 mg/kg
cation traces   Ca: ≤10 mg/kg
  Cd: ≤5 mg/kg
  Co: ≤5 mg/kg
  Cr: ≤5 mg/kg
  Cu: ≤5 mg/kg
  Fe: ≤10 mg/kg
  K: ≤50 mg/kg
  Mg: ≤5 mg/kg
  Mn: ≤5 mg/kg
  Na: ≤50 mg/kg
  Ni: ≤5 mg/kg
  Pb: ≤5 mg/kg
  Zn: ≤5 mg/kg

Description

General description

Nitric acid (HNO3) is a highly corrosive strong mineral acid. In HNO3, nitrogen element exhibits +5 oxidation state. 10%(v/v) nitric acid solution is useful for cleaning the laboratory glasswares. Reaction of HNO3 with various original and synthetic mineral dust/mineral oxide surfaces was studied in a low-pressure Knudsen reactor operating at 298K.

Application

Nitric acid (HNO3) may be used in the following studies:
• Oxidation of ultiwalled carbon nanotubes (MWCNTs).
• Removal of transition metal catalyst from the single-walled carbon nanotubes (SWNTs) during the purification of SWNTs.
• Trace determinations of Pb and Cd in aqueous medium by flame atomic absorption spectrometry.
• Preparation of lead dioxide (PbO2).

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
Supplemental Hazard Statements 
Corrosive to the respiratory tract.
RIDADR 
UN 2031A 5.1(8) / PGI
WGK Germany 
2
RTECS 
QU5900000

Documents

Certificate of Analysis

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Protocols & Articles

Articles

IC Separation of Lithium, Sodium, Ammonium, Potassium, Calcium, and Magnesium Ions on Metrohm Metrosep C4

From our library of Articles, Sigma-Aldrich presents IC Separation of Lithium, Sodium, Ammonium, Potassium, Calcium, and Magnesium Ions on Metrohm Metrosep C4
Keywords: Chromatography, High performance liquid chromatography

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Peer-Reviewed Papers
15

References

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