88431

Ammonium phosphate monobasic

analytical standard, for nitrogen determination according to Kjeldahl method, ≥99.5%

• Synonym(s): mono-Ammonium phosphate, prim-Ammonium phosphate, Ammonium dihydrogenphosphate
• Linear Formula: NH₄H₂PO₄
• CAS Number: 7722-76-1
• Molecular Weight: 115.03
• EC Number: 231-764-5
• MDL number: MFCD00003396
• UNSPSC Code: 85151701
• PubChem Substance ID: 329769652
• NACRES: NA.24

Properties

• grade: analytical standard
• Quality Level: 100
• description: traceable to NIST SRM 194
• assay: ≥99.5% (T); ≥99.5%
• shelf life: limited shelf life, expiry date on the label
• technique(s): HPLC: suitable; gas chromatography (GC): suitable; titration: suitable
• impurities: 12.18%±0.10% total Kjeldahl nitrogen
• loss: ≤0.2% loss on drying
• pH: 3.8-4.4 (25 °C, 50 mg/mL in H₂O)
• mp: 190 °C (dec.) (lit.)
• solubility: H₂O: soluble, clear, colorless
• application(s): food and beverages
• format: neat
• SMILES string: N.OP(O)(O)=O
• InChI: 1S/H3N.H3O4P/c;1-5(2,3)4/h1H3;(H3,1,2,3,4)
• InChI key: LFVGISIMTYGQHF-UHFFFAOYSA-N

Description

General description

Ammonium dihydrogen phosphate is an analytical standard produced under rigorous conditions and measured with the highest possible precision.

Application

It is used as a standard for nitrogen determination according to Kjeldahl′s method.

Features and Benefits

• Available in a neat format, in a secure glass bottle to ensure its stability for the entire shelf life until opened.
• Offers accurate titer determinations
• Accompanied by a certificate of analysis (CoA)

Caution

Store at room temperature. We recommend to purge with dried argon or nitrogen after first use to exclude humidity.

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)