Phosphorous acid

CAS Number 10294-56-1
Molecular Formula H3O3P
Molecular Weight 81.995 g/mol
InChI Key OJMIONKXNSYLSR-UHFFFAOYSA-N
LogP 1.15
Synonyms
  • Phosphorous acid
  • 10294-56-1
  • Caswell No. 663I
  • EINECS 233-663-1
  • EPA Pesticide Chemical Code 076002
  • UNII-95E079716M
  • 858711-57-6

Applications:


HPLC Separation of Phosphorous and Phosphoric Acids
  Application Notes: Phosphorus and phosphoric acid were separated on Obelisc N and Primesep D columns. On Obelisc N both acids retained by combination of HILIC and anion-exchange mechanisms. OnPrimesep D these inogranic acids are retained by anion-exchange mechanism. Both columns and methods can be used for analysis of hydrophilic organic and inorganic acids with multi-mode or single mode approach Application Columns: Primesep D, Obelisc N Application compounds: Phosphorous Acid, Phosphoric Acid Detection technique: UV, LC/MS, ELSD/CAD  

Condition 1

Column Primesep D, 3.2x50 mm, 5 µm, 100A
Mobile Phase MeCN
Buffer AmFm
Flow Rate 0.5 ml/min
Detection ELCD
 

Condition 2

Column Obelisc N, 4.6x50 mm, 5 µm, 100A
Mobile Phase  MeCN
Buffer AmFm
Flow Rate 0.5 ml/min
Detection ELSD
 

Description

Class of Compounds  Acid, Fungicide,  Hydrophilic, Ionizable
Analyzing Compounds Phosphorous Acid,  Phosphoric Acids


Application Analytes:

Phosphoric Acid
Phosphorous acid

HPLC Separation of Phosphoric and Phosphorous Acids on Newcrom B Column
HPLC.cloud View on hplc.cloud

Condition

Column Newcrom B, 4.6x150 mm, 5 µm, 100A
Mobile Phase MeCN/H2O - 20/80%
Buffer Formic Acid -  2%
Flow Rate 1.0 ml/min
Detection CAD (Corona) MS- compatible mobile phase

Description

Class of Compounds Hydrophilic,  Acid
Analyzing Compounds Phosphoric acid,  Phosphorous acid


Application Analytes:

Phosphoric Acid
Phosphorous acid

HPLC Separation of Polar Pesticides on Newcrom B Column
HPLC.cloud View on hplc.cloud               Pesticide is a more generic term that includes herbicides, fungicides and insecticides in its definition. Herbicides are used to control unwanted plants, they are also known as weedkillers. Insecticides are used to kill insects. Fungicides are used to kill parasitic fungi. All are heavily used in agriculture. By using HPLC, many different pesticides can be separated and their retention characteristics controlled using the Newcrom B mixed-mode column.

Condition

Column Newcrom B, 4.6x150 mm, 5 µm, 100A
Mobile Phase MeCN/H2O - 10/90%
Buffer AmFm pH 3.0 Gradient  5 - 60 mM 15 min
Flow Rate 1 ml/min
Detection CAD
 

Condition 2

Column Newcrom B, 4.6x150 mm, 5 µm, 100A
Mobile Phase MeCN/H2O - 10/90%
Buffer AmFm pH 3.0 Gradient  5 - 15 mM 10 min
Flow Rate 1 ml/min
Detection CAD
   

Description

Class of Compounds Pesticides, Herbicides, Fungicides, Insecticides
Analyzing Compounds Aminomethylphosphonic acid (AMPA), Bialaphos, Glyphosate, Phosphorous acid H3PO3, Fosetyl-Al, Bromide, Chlorate, Perchlorate, 3-Methylphosphinicopropionic acid (MPPA), Bromide
 

Application Analytes:

3-(Methylphosphinico)propionic acid
Aminomethylphosphonic acid (AMPA)
Bialaphos
Bromate
Bromide
Chlorate
Fosetyl-Al
Glyphosate
Perchlorate
Phosphorous acid
Sodium Bromate