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101126 Ammonium dihydrogen phosphate

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Replacement Information
Replacement InformationIn North America 1.01126.0500 replaces and is identical to AX1350-1
In North America 1.01126.9050 replaces and is identical to AX1350-20

Key Spec Table

CAS #EC NumberHill FormulaChemical FormulaMolar MassGrade Value
7722-76-1231-764-5H₆NO₄P(NH₄)H₂PO₄115.03 g/molACS,Reag. Ph Eur


Catalogue NumberPackaging Qty/Pack
1011260500 Plastic bottle 500 g
1011269050 Fibre carton 50 kg
Catalogue Number101126
ReplacesAX1350; AX1350-1; AX1350-20
SynonymsAmmonium biphosphate, Ammonium phosphate monobasic, Primary ammonium phosphate, Monoammonium orthophosphate
Product Information
CAS number7722-76-1
EC number231-764-5
GradeACS,Reag. Ph Eur
Hill FormulaH₆NO₄P
Chemical formula(NH₄)H₂PO₄
Molar Mass115.03 g/mol
HS Code3105 10 00
Quality LevelMQ300
Biological Information
Physicochemical Information
Density1.81 g/cm3 (20 °C)
Melting Point190 °C
pH value3.8 - 4.4 (50 g/l, H₂O, 25 °C)
Vapor pressure<0.001 hPa (20 °C)
Bulk density800 - 1100 kg/m3
Solubility368 g/l
Materials Information
Toxicological Information
LD 50 oralLD50 Rat 5750 mg/kg
LD 50 dermalLD50 Rabbit > 7940 mg/kg
Safety Information according to GHS
Storage class10 - 13 Other liquids and solids
WGKWGK 1 slightly hazardous to water
Inorganic salts: Container I. Neutral solutions of the these salts: Container D. Before placing in Container D, check the pH with pH-Universal indicator strips (Item No. 109535).
Safety Information
Product Usage Statements
Storage and Shipping Information
StorageStore at +2°C to +30°C.
Packaging Information
Transport Information
Declaration (railroad and road) ADR, RIDKein Gefahrgut
Declaration (transport by air) IATA-DGRNo Dangerous Good
Declaration (transport by sea) IMDG-CodeNo Dangerous Good
Supplemental Information
Assay (acidimetric)≥ 99.0 %
Insoluble matter≤ 0.005 %
pH-value (5 %; water, 25 °C)3.8 - 4.4
pH-value (2.3%; water)about 4.2
Chloride (Cl)≤ 0.0005 %
Nitrate (NO₃)≤ 0.001 %
Sulfate (SO₄)≤ 0.005 %
Heavy metals (as Pb)≤ 0.0005 %
Ca (Calcium)≤ 0.001 %
Fe (Iron)≤ 0.001 %
K (Potassium)≤ 0.005 %
Mg (Magnesium)≤ 0.0005 %
Na (Sodium)≤ 0.005 %
corresponds to ACS,Reag. Ph Eur
Global Trade Item Number
Catalogue Number GTIN
1011260500 04022536016375
1011269050 04022536016399


Ammonium dihydrogen phosphate SDS


Safety Data Sheet (SDS) 

Ammonium dihydrogen phosphate Certificates of Analysis

Product Number PackagingSpecificationLot Number
1011260500 Plastic bottlePDF Specification Document
1011269050 Fibre cartonPDF Specification Document


Inorganics & Solvents for classical analysis
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Technical Info

Pharmaceutical impurity profiling Application guide
Pharmacopoeia Monograph Methods - HPLC and UHPLC methods for Regulated Drug Analysis