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Specializes in R&D and production of fire assay fluxes, widely used for precious metal testing including gold, silver, and copper.

High-Purity Pyrometallurgical Lead Oxide
Fire assay flux

High-purity Fire Assay Lead Oxide

Au < 1 ppb | Ag < 0.2 ppm | Spec: 500g/bottle

High-Purity Boric Acid Flux HN-101
Fire assay flux

High-Purity Boric Acid Flux HN-101

Purity: ≥99.9% | Specification: 500g/bottle | Au < 1 ppb

Lithium tetraborate flux HN-202
Fire assay flux

Lithium Tetraborate Flux HN-202

Purity: ≥99.5% | Specification: 500g/bottle | Ag < 0.2 ppm

Lithium metaborate flux HN-303
Borate flux

Lithium metaborate flux HN-303

Purity: ≥99.8% | Specification: 500g/bottle | Application: Ore pretreatment

Lithium Carbonate Flux HN-404
Carbonate Flux

Lithium Carbonate Flux HN-404

Purity: ≥99.9% | Specification: 500g/bottle | Application: Lithium battery materials

Mixed Flux HN-505
Fire assay flux

Hybrid Flux HN-505

Custom Formula | Specs: 500g/bottle | Application: Special Samples

Quality Assurance

Ultra-low background

Au < 1 ppb, Ag < 0.2 ppm

Batch Stability

Strict process controls ensure reproducible test results

Global Supply

Stable, scalable ton-level production capacity