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30709 Sigma-Aldrich

Nitric acid

puriss. p.a., reag. ISO, reag. Ph. Eur., for determinations with dithizone, ≥65%

  • CAS Number 7697-37-2

  • Empirical Formula (Hill Notation) HNO3

  • Molecular Weight 63.01

  •  MDL number MFCD00011349

  •  PubChem Substance ID 329753565

  •  NACRES NA.21

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Properties

Related Categories Acids, Acids & Bases, Analytical Reagents, Analytical Reagents for General Use, Analytical/Chromatography,
Quality Level   200
grade   for determinations with dithizone
Agency/Method   reag. ISO
  reag. Ph. Eur.
vapor pressure   8 mmHg ( 20 °C)
grade   puriss. p.a.
assay   ≥65%
form   liquid
ign. residue   ≤0.0005% (as SO4)
pH   < 1.0
bp   120.5 °C (lit.)
density   1.37-1.41 g/mL at 20 °C (lit.)
anion traces   chloride (Cl-): ≤0.5 mg/kg
  phosphate (PO43-): ≤0.5 mg/kg
  sulfate (SO42-): ≤0.5 mg/kg
cation traces   Ag: ≤0.01 mg/kg
  Al: ≤0.05 mg/kg
  As: ≤0.01 mg/kg
  Ba: ≤0.01 mg/kg
  Be: ≤0.01 mg/kg
  Bi: ≤0.1 mg/kg
  Ca: ≤0.1 mg/kg
  Cd: ≤0.01 mg/kg
  Co: ≤0.01 mg/kg
  Cr: ≤0.02 mg/kg
  Cu: ≤0.01 mg/kg
  Fe: ≤0.1 mg/kg
  Ge: ≤0.05 mg/kg
  Hg: ≤0.01 mg/kg
  K: ≤0.05 mg/kg
  Li: ≤0.01 mg/kg
  Mg: ≤0.1 mg/kg
  Mn: ≤0.01 mg/kg
  Mo: ≤0.02 mg/kg
  Na: ≤0.5 mg/kg
  Ni: ≤0.02 mg/kg
  Pb: ≤0.01 mg/kg
  Sr: ≤0.01 mg/kg
  Ti: ≤0.1 mg/kg
  Tl: ≤0.05 mg/kg
  V: ≤0.01 mg/kg
  Zn: ≤0.05 mg/kg
  Zr: ≤0.1 mg/kg
SMILES string   O[N+]([O-])=O
suitability   passes test for suitability for det. with dithizone
InChI   1S/HNO3/c2-1(3)4/h(H,2,3,4)
InChI key   GRYLNZFGIOXLOG-UHFFFAOYSA-N

Description

General description

A yellow coloration of the bottle has no influence whatsoever on the product quality.

Nitric acid (HNO3) is a highly corrosive strong mineral acid. 10%(v/v) nitric acid solution is useful for cleaning 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 for the removal of transition metal catalyst from the single-walled carbon nanotubes (SWNTs) during the purification of SWNTs. It may be used in the trace determinations of Pb and Cd in natural waters by flame atomic absorption spectrometry.

Other Notes

The article number 30709-4X2.5L will be discontinued. Please order the single bottle 30709-2.5L which is physically identical with the same exact specifications.

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
Supplemental Hazard Statements 
EUH071
RIDADR 
UN2031 - class 8 (5.1) - PG 2 - IATA PAX forbidden - Nitric acid >=65% - <= 70%
WGK Germany 
WGK 2
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable
Protocols & Articles

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