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Aquastar® CombiCoulomat fritless – Product Introduction
Overview
The Aquastar® CombiCoulomat fritless is a high-performance coulometric Karl Fischer (KF) reagent designed for precise and reliable water determination across a wide range of sample matrices. Manufactured by Merck KGaA (MilliporeSigma), this ready-to-use liquid reagent belongs to the trusted Aquastar® product line – a brand globally recognized for sophisticated, high-quality Karl Fischer titration solutions.
What sets the CombiCoulomat fritless apart is its universal compatibility – it is suitable for use in both diaphragm-equipped and diaphragm-free coulometric titration cells. This eliminates the need for separate reagents for different cell types, simplifying inventory management and reducing operational complexity.
Key Features & Benefits
Universal Cell Compatibility
The CombiCoulomat fritless reagent is engineered to perform reliably in cells with and without a diaphragm. This versatility makes it an ideal choice for laboratories that operate multiple coulometers with different cell configurations.
Single-Reagent Convenience
Like single-component volumetric KF reagents, this coulometric reagent contains all reaction components in one solution. Only one bottle is needed for both the anode and cathode compartments, significantly simplifying reagent handling and reducing the risk of errors.
High Precision and Reproducibility
The CombiCoulomat fritless delivers very high accuracy and reproducibility, ensuring consistent, reliable results even for challenging low-moisture samples.
Fast Equilibrium Time
The reagent enables short cell equilibration times, allowing users to start measurements quickly and improve laboratory throughput.
Chlorinated Hydrocarbon-Free Formulation
The reagent is formulated without chlorinated hydrocarbons, offering a safer and more environmentally friendly alternative to traditional KF reagents.
Broad Application Range
The reagent is suitable for samples with water content below 1% and can be applied across diverse industries:
| Application Area | Examples |
|---|---|
| Food | Oils, fats, processed foods |
| Chemicals | Solvents, raw materials, intermediates |
| Pharmaceuticals | APIs, excipients, finished products |
| Cosmetics | Creams, lotions, personal care products |
| Petrochemicals | Mineral oils, biodiesel, fuels |
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | CombiCoulomat fritless Aquastar® |
| Catalogue No. | 1.09257 / 109257 |
| Pack Size | 500 mL (glass bottle) |
| Physical Form | Liquid |
| Appearance | Yellow |
| pH | 5.5 (20 °C in H₂O) |
| Density | 0.92 g/cm³ at 20 °C |
| Flash Point | 12 °C (53.6 °F) |
| Boiling Point | ~70 °C |
| Storage Temperature | +15 °C to +25 °C |
| Shelf Life | 120 months |
| Solubility | Partly soluble in water (20 °C) |
| Composition | Methanol (≥70% to ≤90%), Bromoform (≥1% to |
| Reaction Type | Coulometric |
| Technique | Karl Fischer titration |
Safety & Handling Information
The CombiCoulomat fritless reagent is classified as a dangerous substance and requires careful handling:
Hazard Classification
Highly flammable liquid and vapor (Flash point: 12 °C)
Toxic if swallowed, in contact with skin, or if inhaled
Causes damage to organs (Eyes, Central nervous system)
Harmful to aquatic life with long-lasting effects
Required Precautions
Keep away from heat, sparks, open flames, and other ignition sources. No smoking.
Avoid release to the environment.
Wear protective gloves, protective clothing, eye protection, and face protection.
In case of swallowing: Immediately call a POISON CENTER or doctor.
In case of skin contact: Remove all contaminated clothing immediately. Rinse skin with water.
In case of inhalation: Remove person to fresh air and keep comfortable for breathing. Call a POISON CENTER or doctor.
Storage Conditions
Store at +15 °C to +25 °C in a well-ventilated area, away from ignition sources.
Ordering Information
| Item | Details |
|---|---|
| Catalogue Number | 1.09257.0508 |
| Brand | Aquastar® (MilliporeSigma / Merck) |
| Packaging | 500 mL glass bottle |
| Quality Level | 100 |
| Country of Origin | Germany |
Why Choose CombiCoulomat fritless?
The Aquastar® CombiCoulomat fritless reagent combines the proven advantages of coulometric Karl Fischer titration – exceptional sensitivity for low water content (10–10,000 ppm) – with the convenience of a truly universal formulation. Its compatibility with both diaphragm and diaphragm-free cells, single-reagent simplicity, and freedom from chlorinated hydrocarbons make it the smart choice for laboratories seeking reliable, reproducible, and efficient water determination across a wide range of sample types.
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