Description
Ammonia solution 25 % is an analytical-grade aqueous ammonia reagent offered as ROTIPURAN® min. 25 %, p.a., with CAS number 1336-21-6 and empirical formula NH₃ + H₂O. The molar mass is given as 17,03 + aq g/mol, the density is 0,907 g/cm³, and the boiling point is 38 °C, supporting reproducible work in quantitative and qualitative procedures. Typical applications include sample preparation, pH adjustment, complexation steps, and classical wet-chemical methods in analytical chemistry. Within food-related workflows it is also applied in fat determination and related analytical sequences that call for a reliable ammonia source. The p.a. specification and ROTIPURAN® designation underline its fitness for precise laboratory practice. Clear labelling of CAS and EG identifiers aids inventory control, method documentation, and safe handling in regulated laboratory environments.
This article is part of Analytical grade solvents (p.a.), in Solvents.
Key features
- Assay (acidimetric., NH3): ≥25 %
- Colour (APHA): ≤10
- Non volatile matter: ≤0,002 %
- Sulphur compounds (as SO4): ≤0,0002 %
- Pyridine and homologues: ≤0,0002 %
- Carbonate (as CO2): ≤0,001 %
- Chloride (Cl): ≤0,00005 %
- Sulphide (S): ≤0,00001 %
- Phosphate (PO4): ≤0,00005 %
- Aluminium (Al): ≤0,00001 %
- CAS number: 1336-21-6
- Pack sizes: 1 l, 2.5 l, 5 l
- EG nr.: 215-647-6
- Empirical formula: NH₃ + H₂O
- Density: 0,907 g/cm³
- Technical Information Sheet:
- Safety Data Sheet:
Compliance & Safety Information
DangerHazard Statements (H-Phrases)
Precautionary Statements (P-Phrases)
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Questions about Ammonia solution 25 %, ROTIPURAN® min. 25 %, p.a., 1 l, glass
What is this article?
Ammonia solution 25 %, ROTIPURAN® min. 25 %, p.a., 1 l, glass is the article on this page. Luminix Health distributes Carl Roth for laboratory use. It sits in Analytical grade solvents (p.a.), inside Solvents, in Lab chemicals.
An analytical-grade solvent, often marked p.a., has impurity limits tight enough for classical analysis and for preparing reagents. It is not automatically low enough in UV absorbance for HPLC, and it is not dry enough for a water-sensitive reaction. The grade is the purchase.
A solvent dissolves. The grade says which impurities are low enough for the method. Analytical grade is the ordinary pure solvent. HPLC and LC-MS grades limit the absorbance and the ions that would become peaks or background. A dry solvent has had water removed. A deuterated solvent is for NMR, where the hydrogen signal would otherwise drown the sample. Technical grade is for cleaning and for synthesis that does not need a chromatogram. Identity is on PubChem. Names follow IUPAC. Hazards follow ECHA, the CLP Regulation and REACH.
Which category should I open next?
The category is Solvents. The sub-category is Analytical grade solvents (p.a.). The catalogue is Lab chemicals.
Shelves beside this one are HPLC & LC-MS grade solvents, Dry & deuterated solvents (NMR, synthesis), Technical & synthesis grade solvents and Green & alternative solvents.
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