Cresol Red Properties Applications and Sourcing for Accurate Results

Understanding Cresol Red: Applications, Properties & Sourcing

Cresol red is a pH indicator widely used in various scientific and industrial applications, particularly in microbiology, chemistry, and environmental monitoring. Its distinct color changes across a specific pH range make it invaluable for titrations, cell culture media, and water quality testing. Moneide Chem specializes in providing high-quality cresol red, catering to diverse needs with a focus on purity and reliability. Understanding the properties and sourcing options for cresol red is crucial for achieving accurate and dependable results.

Chemical and Physical Properties of Cresol Red

Cresol red, also known as o-Cresol Red, is a sulfonphthalein dye. Its molecular formula is C₂₁H₁₈O₇S, and it has a molecular weight of 414.43 g/mol. It exists as a reddish-orange powder, soluble in ethanol and slightly soluble in water. The key property of cresol red is its pH-dependent color change. It transitions from yellow at pH 8.8, with an orange hue in between. This characteristic makes it a vital component in numerous analytical procedures. The purity of the cresol red used directly impacts the accuracy of these procedures, which is why sourcing from a reputable supplier like Moneide Chem is essential.

Applications of Cresol Red Across Industries

Cresol red finds diverse applications. In microbiology, it's often incorporated into growth media to indicate bacterial activity based on pH changes during metabolism. In chemistry, it serves as a reliable pH indicator in titrations, enabling precise determination of equivalence points. Environmental scientists utilize cresol red for assessing water quality, monitoring pH levels in aquatic ecosystems, and detecting pollution. Pharmaceutical companies leverage its properties in quality control processes. The versatility of cresol red stems from its consistent performance and the availability of high-quality products from suppliers like Moneide Chem.

Cresol Red: Technical Specifications & Purity Grades

Understanding the specifications of cresol red is vital for ensuring its suitability for a particular application. Different grades are available, impacting purity and performance. Moneide Chem provides cresol red in various purity levels, including technical grade, reagent grade, and HPLC grade, catering to diverse research and industrial demands. Below is a table outlining typical specifications:

Choosing the Right Cresol Red Supplier: Why Moneide Chem?

Selecting a reliable supplier is paramount when sourcing cresol red. Moneide Chem stands out due to our commitment to quality, consistent product purity, competitive pricing, and exceptional customer service. We adhere to stringent quality control measures throughout the manufacturing process, ensuring that every batch of cresol red meets the highest industry standards. We also offer custom packaging and delivery options to suit your specific needs, and our experienced technical support team is available to assist with any questions or concerns.

Conclusion: Cresol Red – A Versatile Indicator with Reliable Sourcing

Frequently Asked Questions (FAQs)

What safety precautions should I take when handling cresol red?

Cresol red is generally considered a low-hazard chemical, but it's crucial to follow standard laboratory safety procedures. Avoid inhalation of dust, contact with skin and eyes, and ingestion. Wear appropriate personal protective equipment (PPE), including gloves, safety glasses, and a lab coat. Work in a well-ventilated area or use a fume hood. Refer to the Safety Data Sheet (SDS) for detailed safety information before handling. Proper disposal of cresol red and contaminated materials is also essential.

How should I store cresol red to maintain its quality?

Store cresol red in a tightly closed container, protected from light and moisture. Keep it in a cool, dry, and well-ventilated location, away from incompatible substances like strong oxidizing agents. Long-term storage under inert gas (e.g., nitrogen) can help prevent degradation. Ensure the container is properly labeled with the chemical name, concentration, and any relevant hazard warnings. Regular inspection for any signs of deterioration is recommended.

What is the difference between cresol red and other pH indicators?

Cresol red has a distinct pH transition range (7.2-8.8) compared to other indicators like methyl orange (3.1-4.4) or phenolphthalein (8.3-10.0). The specific range makes it suitable for specific applications. Cresol red is particularly useful in environments where a slightly alkaline pH needs to be monitored. The color changes are also relatively clear and easy to observe, contributing to its widespread use. Choosing the right indicator depends on the pH range of interest and the required sensitivity.