0
VWR® Ammonia Solution 28%, AnalaR NORMAPUR® Analytical Reagent
Catalog No :
CAS Number :
Brand :
In Stock
Specifications:
| Application | Analytical Chemistry | ||
| Storage Temperature | Ambient | ||
| Product Type | Laboratory Chemical | Forms | Liquid |
| Product Brand | VWR, part of Avantor | ||
| Product Grade | Analytical grade | Formula | NH₃ |
VWR® Ammonia Solution 28%, AnalaR NORMAPUR® is a high-purity analytical-grade aqueous ammonia reagent suitable for demanding laboratory, quality control, and research applications. Also known as ammonium hydroxide solution, ammonia aqueous, or ammonia water, this reagent is supplied with controlled assay, residue, anion, and trace metal specifications.
With an assay range of 28.0–32.0%, low evaporation residue, and extensive trace impurity controls, it is suitable for analytical chemistry workflows, reagent preparation, pH adjustment, sample preparation, and laboratory methods requiring consistent reagent quality.
Key Features
- Analytical-grade ammonia solution 28%
- AnalaR NORMAPUR® quality
- Assay range: 28.0–32.0%
- Low evaporation residue: ≤10 ppm
- Low chloride, phosphate, sulphate, and carbonate limits
- Extensive trace metal impurity specification
- Suitable for routine and high-purity analytical applications
- Supplied with Certificates and SDS
- Available in 1 L, 2.5 L, and 5 L pack sizes
- Ambient storage
Applications
- Analytical chemistry workflows
- pH adjustment and reagent preparation
- Sample preparation
- Quality control testing
- Research laboratory applications
- Chemical synthesis support
- Trace analysis workflows
- General laboratory ammonia reagent use
Product Specifications
| Parameter | Specification |
|---|---|
| Brand | VWR® |
| Product Name | Ammonia Solution 28% |
| Grade | AnalaR NORMAPUR® Analytical Reagent |
| Synonyms | Ammonia aqueous; ammonium hydroxide solution; ammonium hydroxide; ammonia water |
| CAS Number | 1336-21-6 |
| Formula | NH₃ |
| Molecular Weight | 35.05 g/mol |
| MDL Number | MFCD00066650 |
| EINECS | 215-647-6 |
| Boiling Point | 32–37.7°C at 1013 hPa |
| Melting Point | –60 to –57.5°C |
| Density | 0.898 g/cm³ at 20°C |
| Storage Temperature | Ambient |
| UN Number | UN 2672 |
| ADR | 8, III |
Quality Specifications
| Test | Specification |
|---|---|
| Assay | 28.0–32.0% |
| Colouration | ≤10 APHA |
| Density, 20/4 | 0.880–0.910 |
| Evaporation residue | ≤10 ppm |
| Silica | ≤10 ppm |
| Substances reducing KMnO₄ as O | ≤4 ppm |
| Chloride | ≤0.5 ppm |
| Carbonate | ≤10 ppm |
| Nitrite | ≤2 ppm |
| Phosphate | ≤0.5 ppm |
| Sulphide | ≤0.1 ppm |
| Sulphate | ≤2 ppm |
Trace Metal Specifications
| Element | Limit |
|---|---|
| Aluminium | ≤0.03 ppm |
| Arsenic | ≤0.01 ppm |
| Boron | ≤0.02 ppm |
| Barium | ≤0.02 ppm |
| Beryllium | ≤0.01 ppm |
| Calcium | ≤0.3 ppm |
| Cadmium | ≤0.01 ppm |
| Cobalt | ≤0.01 ppm |
| Chromium | ≤0.02 ppm |
| Copper | ≤0.02 ppm |
| Iron | ≤0.1 ppm |
| Mercury | ≤0.01 ppm |
| Potassium | ≤0.1 ppm |
| Lithium | ≤0.01 ppm |
| Magnesium | ≤0.05 ppm |
| Manganese | ≤0.01 ppm |
| Molybdenum | ≤0.02 ppm |
| Sodium | ≤2 ppm |
| Nickel | ≤0.02 ppm |
| Lead | ≤0.02 ppm |
| Strontium | ≤0.01 ppm |
| Titanium | ≤0.05 ppm |
| Vanadium | ≤0.01 ppm |
| Zinc | ≤0.02 ppm |
| Zirconium | ≤0.05 ppm |
Ordering Information
| Catalogue Number | Pack Size | Pack Type |
|---|---|---|
| 21190.246 | 1 L | Glass bottle, Safebreak® |
| 21190.292 | 1 L | Glass bottle |
| 21190.326 | 2.5 L | Glass bottle, Safebreak® |
| 21190.361 | 5 L | Fluorinated plastic bottle |
Safety & Handling Information
| Hazard Classification | Details |
|---|---|
| Corrosive | Yes |
| Irritant | Yes |
| Environmental Hazard | Yes |
| Transport Classification | UN 2672, ADR 8, III |
Handle in a well-ventilated laboratory environment using appropriate PPE, including gloves, lab coat, and eye or face protection. Avoid inhalation of vapours and contact with skin or eyes. Follow the SDS and institutional chemical safety procedures.
VWR® Ammonia Solution 28%, AnalaR NORMAPUR® Analytical Reagent is a dependable high-purity ammonia solution for analytical laboratories requiring consistent assay performance and tight impurity control. Its low residue specification, extensive trace metal limits, and availability in multiple packaging formats make it suitable for reagent preparation, pH adjustment, sample preparation, and routine quality control applications.
- Pack Size: Glass bottle, 1L Glass bottle, Safebreak®, 1 L Glass bottle, Safebreak®, 2.5 L 5 L, Plastic bottle, fluorinated