Description
Specifications Table
Product Name – p-Toluenesulfonic acid LR
Quantity/Pack Size – 500 g
Form – Crystalline solid
Grade – LR (Laboratory Reagent)
Application – Organic synthesis, catalysis, esterification
Product Overview
p-Toluenesulfonic acid LR is a highly pure, white crystalline solid widely recognized for its role as a strong organic acid in laboratory settings. With a molecular formula of CH₃C₆H₄SO₃H, this reagent-grade compound offers exceptional solubility in polar solvents like water, ethanol, and acetone, making it ideal for applications requiring precise acidity control. Its low moisture content and high stability ensure consistent performance in reactions such as esterification, where it acts as an efficient catalyst. The LR grade designation guarantees minimal impurities, providing reliable results in sensitive analytical and synthetic procedures. This compound is particularly valued for its ability to protonate substrates without introducing oxidative side reactions, a critical feature in organic synthesis. When stored in a cool, dry environment, p-Toluenesulfonic acid LR maintains its integrity over extended periods, reducing the risk of degradation. Its versatility extends to use as a pH modifier in non-aqueous systems, where traditional mineral acids may be less effective. For researchers demanding reproducibility and purity, this reagent delivers consistent molecular interactions, ensuring experimental accuracy across diverse chemical processes.
FAQs
1. What is the solubility profile of p-Toluenesulfonic acid LR in common lab solvents?
p-Toluenesulfonic acid LR is highly soluble in water, ethanol, and acetone, with moderate solubility in diethyl ether. Its solubility decreases in non-polar solvents like hexane.
2. How does the LR grade differ from technical-grade p-Toluenesulfonic acid?
The LR grade undergoes stricter purification processes, resulting in lower impurity levels (typically <0.5% residual moisture) compared to technical grades, which may contain up to 5% impurities.
3. Can this compound be used as a replacement for sulfuric acid in esterification?
Yes, p-Toluenesulfonic acid LR is often preferred over sulfuric acid for esterification due to its non-oxidizing nature and easier handling in organic solvents.
4. What are the recommended storage conditions to prevent degradation?
Store in a tightly sealed container under inert gas if possible, at temperatures below 25°C, away from moisture and direct sunlight to prevent hydrolysis.
5. Does this product contain any stabilizers or additives?
No, p-Toluenesulfonic acid LR is supplied as a pure reagent without added stabilizers, ensuring unaltered reactivity in sensitive applications.
