Nitric Acid

nitric acid

CAS Number 7697-37-2
Molecular Formula HNO3
Molecular Weight 63.012 g/mol
InChI Key GRYLNZFGIOXLOG-UHFFFAOYSA-N
LogP 0.21
Synonyms
  • Nitric acid
  • 7697-37-2
  • Acide nitrique
  • acido nitrico
  • Aqua fortis
  • Azotic acid
  • Fumic acid
  • HYDROGEN NITRATE
  • Nitric Acid (2.5LT/BT)
  • NITRIC ACID TG
  • NITRIC ACID, A.R.
  • Nitryl hydroxide
  • NSC 147791
  • NSC 15203
  • SALPETERSAEURE UEBER 1% BIS 3%
  • SALPETERSAEURE UEBER 10%
  • SALPETERSAEURE UEBER 3% BIS 10%
  • SALPETERSAEURE, ROTE RAUCHENDE
  • Salpetersaure
  • UN 1796
  • UN 1826
  • UN 2031
  • UN 2032
  • EINECS 231-714-2
  • Engraver's acid
  • Nitrous fumes
  • Red fuming nitric acid
  • Salpetersaeure
  • Acidum nitricum
  • Azotowy kwas
  • Kyselina dusicne
  • Salpeterzuuroplossingen
  • UNII-411VRN1TV4
  • Nitricum acidum
  • HONO2
  • 1053657-18-3
  • 218625-70-8
  • 78989-43-2
  • 802862-59-5

Applications:


HPLC Separation of Inorganic Anions
Organic and inorganic acids and ions can be separated on a Primesep B4 column based on their ionic properties. Method can be used for quantitation of residual acids in various products and sample matrices. Trifluoracetic, hydrochloric, methanesulfonic, and nitric acids are separated using ACN-water-ammonium formate. Ions can be detected by ELSD, CAD or LC/MS.

Condition

Column Primesep B4, 4.6x150 mm, 5 µm, 100A
Mobile Phase MeCN/H2O
Buffer AmFm
Flow Rate 1.0 ml/min
Detection ELSD
 

Description

Class of Compounds Ions, Hydrophilic, Ionizable
Analyzing Compounds Sodium, Phosphate, Chloride,  Nitrate, Sulfate, Iodide, Perchlorate, Trifluoracetic
 

Application Analytes:

Hydrochloric Acid
Methanesulfonic Acid
Nitrate
Nitric Acid
Organic Acids
Perchloric Acid
TFA (Trifluoroacetic Acid)

HPLC Separation of Chloride and Nitrate Ions
 
High nitrate concentrations in water and soil can be toxic to humans, fish and domestic animals.  Chloride can be used for analysis of water contamination. Primesep D column can be used to separate and quantify both ions.  The baseline separation between chloride and nitrate can be increased by decreasing the ammonium formate concentration in the mobile phase.  Evaporative Light Scattering Detection (ELSD) used.

Condition

Column Primesep D, 4.6x150 mm, 5 µm, 100A
Mobile Phase MeCN/H2O
Buffer AmFm
Flow Rate 1.0 ml/min
Detection ELSD
 

Description

Class of Compounds Hydrophilic, Ion
Analyzing Compounds Chloride, Nitrate
 

Application Analytes:

Chloride
Nitrate
Nitric Acid
Sodium

HPLC Separation of Potassium, Perchlorate, Methanesulfonic, Chloride, Bromide, and Nitrate Ions on Obelisc N
Ion chromatography is usually used for analysis of hydrophilic organic and inorganic ions. Same separation can be achieved on HILIC/mixed-mode Obelisc N HPLC columns. Obelisc N HPLC columns have very polar groups on their surface: one of the groups is basic and the other acidic. In case of low organic concentration, two groups are connected by hydrophilic linker. Obelisc N column can be used as cation-exchange and anion-exchange column. This allows to separate positively and negatively charged molecules in one run. Five anions (chloride, bromide, methanesulfonate, nitrate and perchlorate) along with one cation (sodium) were separated in one run. Method is compatible with ELSD, CAD and LC/MS and can be used for analysis of various hydrophilic and hydrophobic cations and anions in one HPLC run.

Condition

Column Obelisc N, 4.6x150 mm, 5 µm, 100A
Mobile Phase MeCN/H2O
Buffer AmFm
Flow Rate 1.0 ml/min
Detection ELSD
 

Description

Class of Compounds Hydrophilic, Ions
Analyzing Compounds Chloride, Nitrate, Chlorate, Bromide, Potassium
 

Application Analytes:

Bromide
Chloride
Methanesulfonic Acid
Nitrate
Nitric Acid
Potassium