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Thiourea | Eco-Friendly Gold Leaching & Synthesis Intermediate | CAS 62-56-6
Overview
Thiourea is a white, lustrous crystalline powder with a bitter taste, renowned for its versatile chemical reactivity. In recent years, it has gained immense global strategic importance as an eco-friendly, non-toxic alternative to sodium cyanide in the gold and silver mining industries. Beyond metallurgy, it is a foundational building block for advanced pharmaceuticals, agrochemicals, and textile treatments.
Product Description
Thiourea | Eco-Friendly Gold Leaching Agent
Product Overview
Thiourea is a white, lustrous crystalline powder renowned for its versatile chemical reactivity. In recent years, it has gained immense global strategic importance as an eco-friendly, non-toxic alternative to sodium cyanide in the gold and silver mining industries. Beyond metallurgy, it is a foundational building block for advanced pharmaceuticals, agrochemicals, and textile treatments.
At Shandong Yinglang Chemical Co., Ltd., established in 2016, we supply massive volumes of Premium High-Purity Thiourea (≥ 99.0%) to global mining conglomerates and fine chemical synthesis plants. Operating securely under Class 9 Dangerous Goods protocols, we ensure our Thiourea features exceptionally low moisture and ash content, guaranteeing maximum leaching efficiency.
Technical Specifications (COA)
For efficient gold extraction and pharmaceutical synthesis, high purity and low insoluble matter are critical. Typical specifications:
| Purity (Thiourea) | ≥ 99.0% |
|---|---|
| Loss on Drying (Moisture) | ≤ 0.4% |
| Ash Content | ≤ 0.1% |
| Water Insoluble Matter | ≤ 0.05% |
| Melting Point | 171 - 175°C |
Key Applications
- Gold & Silver Mining: The ultimate green alternative to highly toxic cyanide in precious metal extraction. It offers faster leaching kinetics and is highly effective on complex, refractory gold ores.
- Pharmaceutical Intermediates: A critical raw material used in the synthesis of a wide range of APIs, including thyroid medications and sulfathiazole.
- Textile & Paper Processing: Utilized as a powerful, eco-friendly bleaching and dye leveling agent, replacing hazardous traditional bleaches.
- Agrochemicals: Formulated into effective herbicides and fungicides.
🌍 The Future of Cyanide-Free Gold Leaching
As global environmental regulations tighten, many countries have completely banned the use of Sodium Cyanide in mining. Thiourea leaching in an acidic medium offers a proven, highly efficient, and environmentally compliant alternative. It effectively forms stable complexes with gold and silver ions, significantly increasing extraction rates from carbonaceous and high-copper refractory ores where traditional cyanidation fails.
Bulk DG Packaging Options
To prevent environmental contamination during ocean freight, we utilize secure, UN-approved packaging:
- 1000 KG Jumbo Bags (FIBC) with discharge spouts (Highly recommended for massive mining operations).
- 25 KG Heavy-duty PP woven bags with thick PE inner liners.
⚠️ Safety & Transport Information (Class 9 DG)
- Transport Classification: Classified as Class 9 (Environmentally Hazardous Substance, Solid).
- UN Number: UN 3077 | Packing Group: III
- Handling Precautions: TOXIC TO AQUATIC LIFE. Suspected of causing cancer or reproductive harm. Harmful if swallowed. Operators MUST wear dust masks and safety goggles. Store in a cool, strictly dry warehouse isolated from strong oxidizing agents.
Request a Bulk Quote for Thiourea
Contact us today for the latest FOB/CIF pricing, detailed COA, and specialized Class 9 DG shipping estimates for your mining or synthesis facility.
Request a Bulk Quote Email Sales & Logistics Team
PACKING AND DELIVERY
Packing and delivery
We offer secure and compliant packaging for a wide range of chemical products, from laboratory bottles (100 mL, 250 mL, 500 mL) to customized bulk containers. All shipments follow international hazardous goods standards and include complete documentation such as COA and SDS. With reliable global logistics partners, we ensure safe, fast, and efficient delivery by air, sea, or land according to customer needs.
FAQ
Q1: What documents and certifications do you provide?
A Standard shipment includes COA (Certificate of Analysis) and MSDS (SDS). We also provide ISO 9001 certification and support third-party inspections like SGS or BV upon request.
Q2: Do you provide custom synthesis or formulation services?
A Yes. If you have specific purity requirements or a unique formulation, our R&D team can provide custom synthesis and adjust the stabilizers/inhibitors to meet your technical specifications.
Q3: What are your terms of payment?
A
For Orders ≤ $1,000: 100% in advance.
For Orders > $1,000: 30% T/T in advance, and the balance before shipment or against the copy of B/L. Irrevocable L/C at sight is also acceptable for bulk orders.
Q4: How long is your price valid?
A Chemical prices fluctuate due to the changes in raw material costs and exchange rates. Please contact our sales team for the latest real-time quotation.
Q5: What packaging and shipping ports are available?
A
We normally ship from Qingdao, Shanghai, or Ningbo.
Standard packaging includes 200kg Drums or 1000kg IBC Totes. We ensure strict safety compliance for both general and hazardous chemical cargoes.
Q6: It's my first time importing chemicals — can you help?
A Absolutely. Importing chemicals requires specific documentation. Our experienced logistics team will assist you with the entire process, including handling customs clearance documents and arranging the most suitable shipping method.