Metal barium

Metal Barium is typically traded at purity levels of 99% to 99.9%. For B2B buyers, it is crucial to verify the impurity profile, specifically levels of calcium, magnesium, and iron. It is commonly supplied in rods, ingots, or vacuum-sealed lumps to prevent oxidation. Ensure the supplier provides a Certificate of Analysis (COA) for every batch to confirm the chemical composition meets your specific industrial application, such as vacuum tube getters or alloy production.

Due to its extreme reactivity with air and moisture, Metal Barium must be stored under argon gas or high-grade mineral oil in hermetically sealed containers. Buyers should mandate UN-approved hazardous material packaging. Failure to maintain an airtight seal will lead to rapid oxidation, turning the silver-white metal into a dull white powder (barium oxide), rendering it useless for most technical applications.

Metal Barium is classified under UN Number 1400, Class 4.3 (Substances which, in contact with water, emit flammable gases). Suppliers must provide a comprehensive Material Safety Data Sheet (MSDS/SDS) compliant with GHS standards. For international trade, ensure the manufacturer adheres to ISO 9001 for quality management and ISO 14001 for environmental management, as barium extraction and processing are chemically intensive.

The most common application is as a 'getter' in vacuum tubes and CRT displays to remove residual gases. It is also widely used in the manufacture of alloys (like lead-barium alloys for bearings) and as an additive in steelmaking and degasifying non-ferrous metals. Understanding your specific end-use helps in determining whether you need distilled ultra-high purity barium or standard commercial grade.

As a Class 4.3 Dangerous Good, Metal Barium requires specialized hazardous cargo handling. It cannot be shipped via standard air freight in large quantities; sea freight using DG (Dangerous Goods) containers is the standard. You must ensure your freight forwarder is licensed to handle reactive metals and that the IMDG (International Maritime Dangerous Goods) code is strictly followed to avoid port rejections or heavy fines.

Always use secure payment terms such as Letter of Credit (L/C) or escrow services provided by reputable platforms like Made-in-China.com. Before full payment, conduct a pre-shipment inspection (PSI) through third-party agencies like SGS or Intertek to verify the vacuum seal integrity and weight. Given the high value and hazardous nature, avoid suppliers who refuse factory audits or cannot provide valid export licenses for hazardous chemicals.

Price is heavily influenced by purity levels and packaging costs. Do not simply opt for the lowest quote; extremely low prices often indicate recycled material or poor vacuum packaging, which leads to oxidation during transit. Negotiate based on Total Landed Cost, including the high surcharges for hazardous material shipping and specialized customs clearance fees.

Check for export quotas or environmental taxes in the country of origin, as barium mining is strictly regulated. Additionally, verify the import tariffs and anti-dumping duties in your specific country. Ensure all Customs HS Codes (typically 2805.19) are correctly declared to prevent legal complications or seizure of the cargo during border inspection.