Overview
Benzaldehyde Standard Reagent is a purified form of benzaldehyde, an aromatic aldehyde with the characteristic almond-like odor. As a standard reagent, it meets strict purity requirements for use in analytical applications and quality control processes. In industrial settings, this compound serves as a critical reference material for calibration of analytical instruments and validation of testing methods. The standard reagent grade typically has purity levels of 99% or higher, with precisely characterized properties to ensure reliability in laboratory applications.
Physical and Chemical Properties
Benzaldehyde presents as a colorless to slightly yellow liquid at room temperature, with a distinct aromatic odor. Its molecular structure features a benzene ring connected to an aldehyde functional group, which determines many of its chemical behaviors. The compound demonstrates moderate volatility with a boiling point of 179°C and shows good solubility in organic solvents like ethanol and ether. Its density of 1.041 g/cm³ makes it slightly heavier than water. These properties are carefully controlled in standard reagent grades to ensure consistency between batches.
Main Applications
The primary use of Benzaldehyde Standard Reagent is in analytical chemistry as a reference material for gas chromatography (GC) and high-performance liquid chromatography (HPLC) methods. It helps establish calibration curves and verify instrument performance. In the pharmaceutical industry, it serves as both a reference standard and a starting material for synthesizing various drugs. The flavor and fragrance sector utilizes its pure form for quality control in almond-flavored products and perfumes. Additionally, it finds applications in chemical research as a model compound for studying aromatic aldehydes.
Safety and Storage
Proper handling of Benzaldehyde Standard Reagent requires appropriate personal protective equipment including gloves and eye protection. The compound can cause skin and eye irritation upon contact and is harmful if swallowed or inhaled. For storage, maintain the reagent in tightly sealed amber glass containers to prevent oxidation and light degradation. Ideal storage conditions are cool (below 25°C), dry environments separate from strong oxidizing agents. Shelf life typically ranges from 1-2 years when stored properly, though users should always verify purity before use in critical applications.
B2B Procurement Guide
When purchasing Benzaldehyde Standard Reagent in bulk for commercial or research purposes, several factors require consideration. First, confirm the required purity level - standard reagent grades typically range from 99% to 99.9% purity. Request certificates of analysis (CoA) that detail impurity profiles and verification methods. Evaluate supplier credentials, including ISO certifications and GMP compliance if needed for pharmaceutical applications. Consider packaging options that minimize oxidation risk, such as nitrogen-flushed containers. For reference, bulk prices generally decrease with order volume, with common purchase quantities ranging from 1kg to 25kg drums.
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