Import Bismuth Oxide Powder Bi2o3 5n 99.999 — Buy in Bulk from Supplier in China

Wuhan Xinrong New Materials Co., Ltd. supplies bismuth oxide powder at 5N purity, corresponding to 99.999% Bi2O3 with total impurities capped at 10 parts per million. This grade sits at the top of the commercial purity spectrum for bismuth oxide, positioning it for semiconductor dielectric layers, precision ceramic capacitors, and pharmaceutical active ingredient manufacture where trace metal contamination directly degrades product performance. The supplier is located at No 20, Luo Yu Road, Hongshan District, Wuhan, Hubei Province, with the postal code 430000, placing them within one of China's established materials science industrial clusters with access to Wuhan's universities and national laboratory infrastructure.

The 5N specification implies stringent control over metallic impurities, particularly lead, arsenic, antimony, and copper, which must each typically be held below 1 ppm and collectively below 10 ppm. Achieving this requires multiple recrystallisation or zone-refining steps after initial bismuth metal oxidation, followed by powder classification to eliminate coarse agglomerates and oversized particles. The monoclinic to tetragonal phase transition at approximately 710 degrees Celsius remains relevant even at this purity, though high-purity material exhibits more consistent sintering behaviour and reduced variability in dielectric constant across production batches. Buyers should specify whether they require alpha-phase (room temperature) stabilisation or can accept the phase mixture that may exist if the powder has been subjected to elevated temperatures during processing or transport.

Primary applications for 5N bismuth oxide include thin-film transistor gate dielectrics, where high-k properties and thermal stability with silicon are critical; multilayer ceramic capacitor formulations where bismuth oxide enables lower sintering temperatures for base-metal electrode compatibility; and bismuth subgallate and subcitrate pharmaceutical manufacture where heavy metal limits are pharmacopoeia-regulated. The supplier indicates flexible minimum order quantities and acceptance of letter of credit and telegraphic transfer payment terms, though exact figures require confirmation. Standard packaging for this purity level would typically involve argon or nitrogen-purged aluminium laminate bags within sealed drums to prevent surface contamination and moisture adsorption during international transit.

Wuhan Xinrong New Materials Co., Ltd. is based at No 20, Luo Yu Road in Hongshan District, Wuhan, Hubei Province, China, postal code 430000. The supplier holds an imported tier classification alongside harbor trust tier status, suggesting the company may be engaged in import-export trading or represents a manufacturing entity with international supply chain involvement. The response rate is recorded at 0.00% with zero average response hours, which prospective buyers should factor into their communication planning and due diligence timeline. No information is provided about the company's founding date, production facility scale, R&D capabilities, or quality management certification status.

The product positioning emphasises 5N purity bismuth oxide for sensitive applications in electronics, ceramics, and pharmaceuticals, markets where Chinese suppliers have expanded market share significantly over the past decade. The supplier's location in Wuhan provides proximity to major transport infrastructure including Wuhan Tianhe International Airport and the Yangtze River port system, though specific logistics arrangements are not detailed. Buyers should independently verify the supplier's manufacturing or trading status, request factory audit reports if possible, and confirm that the 5N purity claim is supported by batch-specific certificates of analysis from accredited laboratories such as SGS, Intertek, or domestic Chinese metrology institutes with international MRA recognition.