Silver chloride

When purchasing Silver Chloride, the most critical factor is chemical purity, typically required at 99.9% or 99.99% (ACS Grade) for laboratory and industrial applications. You must verify the Silver (Ag) content, which should be approximately 75.26%. Additionally, pay close attention to the particle size distribution (powder vs. granular) and the levels of trace metal impurities (such as Iron, Copper, or Lead), as these can significantly impact the performance in electrochemical or optical applications.

Silver Chloride is widely used in electrochemistry for manufacturing Reference Electrodes (Ag/AgCl) due to its stability. It is also a vital component in photographic emulsions, optical lenses (due to its transparency in the infrared spectrum), and antimicrobial coatings for medical devices. For B2B buyers, it is essential to specify the intended use to ensure the supplier provides the correct physical form and light-shielding packaging.

Suppliers should ideally hold ISO 9001:2015 certification for quality management. Since Silver Chloride is a chemical substance, a comprehensive Material Safety Data Sheet (MSDS/SDS) is mandatory. For international trade, ensure the product complies with REACH (EU) or TSCA (US) regulations. If used in medical or food-contact applications, look for USP/EP grade compliance and COA (Certificate of Analysis) for every batch.

Silver Chloride is highly photosensitive and will decompose into metallic silver (turning grey or purple) when exposed to light. Therefore, it must be stored in amber glass bottles or opaque black plastic containers. It should be kept in a cool, dry, and well-ventilated area away from incompatible substances like ammonia or strong reducing agents. Ensure the supplier uses light-proof vacuum packaging for transit.

The primary risks include purity fraud and damage during transit. Some suppliers may provide lower-grade industrial salt instead of high-purity AgCl. To mitigate this, always request a pre-shipment sample and use third-party inspection services (like SGS or Intertek) to verify the silver content before final payment. Additionally, ensure the seller uses UN-approved hazardous material packaging if required by the shipping line.

When sourcing from Made-in-China.com, prioritize Audited Suppliers who have undergone on-site factory inspections. Use secure payment terms such as L/C (Letter of Credit) or escrow-based systems that release funds only after the COA (Certificate of Analysis) is verified against the received goods. Avoid suppliers who insist on 100% upfront wire transfers via non-corporate accounts.

Silver Chloride is generally not classified as a highly dangerous good for transport, but it is a precious metal derivative. You must ensure the HS Code (typically 2843.29) is correctly declared to avoid customs delays or fines. Because of its high value-to-weight ratio, air freight with insurance is the recommended shipping method. Ensure the commercial invoice clearly states the silver content to comply with international precious metal trade policies.

Prices for Silver Chloride are heavily influenced by the spot price of Silver on the London Metal Exchange (LME). A smart negotiation strategy is to propose a formula-based pricing model (LME Silver Price + Processing Fee). For bulk orders, negotiate for volume-based discounts and ask the supplier to lock in the price for a specific period to hedge against market volatility.