Description
Specifications Table
Product Name – Ammonium Thiocyanate
Quantity/Pack Size – 500 g
Form – Crystalline powder
Grade – ARS, ACS
Application – Analytical reagent, titrations, synthesis
Product Overview
Ammonium Thiocyanate (NH₄SCN) in ARS/ACS grade is a high-purity crystalline reagent designed for demanding laboratory applications where precision and consistency are critical. This compound features a minimum assay of 98%, ensuring reliable results in analytical procedures, volumetric titrations, and organic synthesis. The ACS certification guarantees compliance with stringent American Chemical Society standards, while the ARS (Analytical Reagent Standard) designation confirms its suitability for quantitative analysis. Its low moisture content (<0.5%) and minimal heavy metal impurities (Pb <5ppm, Fe <5ppm) prevent interference in sensitive reactions. The fine, free-flowing powder dissolves rapidly in water and polar solvents, maintaining stability across a wide pH range (2-12). Packaged in airtight, light-resistant containers to prevent degradation from humidity or UV exposure, this reagent maintains its integrity during prolonged storage. The compound's thermal stability (decomposes at 170°C) makes it versatile for both room-temperature and elevated-temperature applications. Its non-hygroscopic nature eliminates the need for special handling precautions beyond standard laboratory safety protocols. The batch-to-batch consistency is verified through rigorous quality control, including ICP-MS analysis for trace metals and Karl Fischer titration for moisture content.
FAQs
1. What is the exact chemical composition of this Ammonium Thiocyanate?
This product is NH₄SCN with a molecular weight of 76.12 g/mol, containing 35.18% nitrogen and 40.03% sulfur by mass. The ARS/ACS grade ensures the compound meets strict purity requirements for laboratory use.
2. How does the ARS grade differ from standard laboratory grade?
ARS (Analytical Reagent Standard) grade undergoes additional purification steps to remove trace impurities that could affect quantitative analysis. It has tighter specifications for heavy metals, insolubles, and moisture compared to general laboratory grades.
3. What solvents is this compound compatible with?
Ammonium Thiocyanate is highly soluble in water (213 g/100mL at 20°C), methanol, ethanol, and acetone. It shows moderate solubility in pyridine and is insoluble in nonpolar solvents like hexane or chloroform.
4. What storage conditions are recommended to maintain product integrity?
Store in a tightly sealed container at 15-25°C, protected from direct sunlight and moisture. While not strictly hygroscopic, prolonged exposure to humid environments may cause slight caking without affecting chemical purity.
5. Are there any known incompatibilities with other laboratory chemicals?
This compound reacts violently with strong oxidizing agents like potassium permanganate or nitric acid. It also forms explosive mixtures with ammonium nitrate when heated. Always check compatibility before combining with other reagents.
