Gold powder Zl 99.99 per TU 117-1-3-93

The item is confirmed as refined gold powder grade Zl 99.99 per TU 117-1-3-93.

Product type

The product is a gold powder. The minimum mass fraction of gold is 99.99%; other characteristics are batch-specific and per TU.

Characteristics

• Appearance: gold powder
• Grade: Zl 99.99
• Gold: not less than 99.99% by mass
• Document: TU 117-1-3-93 «Gold powder»

The powder form differs from granules, foil, and chips. For load calculation, the mass fraction of gold is insufficient: particle size distribution, morphology, bulk density, production method, and impurity list are required. The designation Zl 99.99 confirms the main metal content but does not describe the particle size or surface condition of a specific batch.

Applications

• metered introduction of gold into research and production formulations after fraction analysis;
• preparation of pastes, coatings, or sintered materials only according to verified recipes;
• remelting or processing into another semi-finished product with confirmed technology and loss accounting;

What to agree upon when ordering

Request particle size distribution, particle shape, bulk density, impurities, moisture, net weight, and container type. The certificate must include grade Zl 99.99, batch number, analysis method, and reference to TU 117-1-3-93. If the powder is intended for printing, sputtering, or sintering, also specify specific surface area and allowable agglomeration.

Safety and storage

Transfer the fine metal powder in a closed area or under local exhaust, avoiding aerosol formation and material loss. Use eye protection, suitable gloves, and respiratory protection as per the safety data sheet. Do not blow or dry-sweep spills: collect them with dedicated equipment. Containers, residues, and filters must be accounted for separately as containing precious metal.