Thiourea
Thiourea is a versatile organic compound widely used in various industrial applications. With its unique chemical properties, thiourea serves as an important raw material in photography, pharmaceuticals, textiles, and many other fields. This article provides a comprehensive overview of thiourea, including its specifications, applications, and frequently asked questions.
Thiourea Product Specifications
Our thiourea meets the highest industry standards with the following technical parameters:
- Chemical Formula: CH4N2S
- Molecular Weight: 76.12 g/mol
- Appearance: White crystalline powder
- Purity: ≥99.0%
- Melting Point: 176-178°C
- Density: 1.405 g/cm3
- Solubility: Soluble in water and ethanol
- Storage Conditions: Keep in cool, dry place away from moisture
Detailed Technical Parameters
| Parameter | Specification | Test Method |
|---|---|---|
| Assay (Thiourea content) | ≥99.0% | HPLC |
| Loss on Drying | ≤0.50% | 105°C, 2 hours |
| Residue on Ignition | ≤0.10% | 800°C |
| Heavy Metals (as Pb) | ≤10 ppm | ICP-MS |
| Water Solubility | 137 g/L (20°C) | Gravimetric |
| pH (5% solution) | 6.0-7.5 | pH meter |
Applications of Thiourea
Thiourea finds applications in numerous industries:
- Photography: Used as a fixing agent in photographic development
- Textile Industry: Serves as a bleaching agent and dye auxiliary
- Pharmaceuticals: Intermediate in drug synthesis
- Agriculture: Component in pesticides and fungicides
- Metal Processing: Used in electroplating and metal extraction
- Rubber Industry: Accelerator in rubber vulcanization
Thiourea Safety Information
While thiourea is generally safe when handled properly, certain precautions should be taken:
- Use personal protective equipment (gloves, goggles)
- Avoid inhalation of dust
- Store away from oxidizing agents
- Keep container tightly closed
- Follow local disposal regulations
Thiourea Frequently Asked Questions
Q: What is the shelf life of thiourea?
A: When stored properly in a cool, dry place in tightly sealed containers, thiourea typically has a shelf life of 24 months from the date of manufacture. Prolonged exposure to moisture or high temperatures may reduce its effectiveness.
Q: Can thiourea be used in food applications?
A: No, thiourea is not approved for use in food products or food processing. It is strictly for industrial applications. Several regulatory agencies have classified thiourea as potentially harmful if ingested.
Q: How should thiourea be disposed of properly?
A: Thiourea should be disposed of in accordance with local, state, and federal regulations. Typically, small quantities can be dissolved in water and treated with sodium hypochlorite solution before disposal. For large quantities, contact licensed waste disposal services. Never dispose of thiourea in regular trash or down the drain without proper treatment.
Packaging Options
We offer thiourea in various packaging sizes to meet different customer needs:
- 25 kg woven bags with polyethylene inner liner
- 500 kg bulk bags (FIBC)
- 1 kg laboratory bottles
- Custom packaging available upon request
Quality Assurance
Our thiourea undergoes rigorous quality control procedures:
- Batch testing for purity and consistency
- Certificates of Analysis available
- GMP-compliant manufacturing
- ISO 9001:2015 certified facilities
- Regular third-party laboratory verification
Ordering Information
For pricing, samples, or additional technical information about our thiourea products, please contact our sales department. We offer flexible quantities and can accommodate both small-scale and bulk orders with competitive shipping options.