Bulk Molecular Sieves 3A | 2 bead sizes | multi-format

3A Molecular Sieve

The 3A molecular sieve is a synthetic adsorbent material with a microporous crystalline structure, characterized by a pore diameter of 3 Å (0.3 nm). It is specifically designed for the drying of polar gases and liquids and is used in industrial applications where prolonged adsorption cycles and high selectivity are required.

Technical Specifications

• Type: A LTA – Sieve 3A
• Pore Diameter: 3 Å (0.3 nm)
• Chemical Base: synthetic crystalline aluminosilicate with a regular microporous structure
• Properties: odorless, non-toxic, non-corrosive, chemically inert, highly selective adsorbent, regenerable through heating
• Available Granulometry: 1.6–2.5 mm ready for immediate delivery | 2.5–5 mm available only on backorder in the 135 kg drum.

Indicative Technical Table

Parameter	1.6–2.5 mm	2.5–5.0 mm
Nominal Dimensional Range (mm)	1.6–2.5	2.5–5.0
Approximate Mesh Size	8 × 12	4 × 8
Packed Density (g/L)	700–770	700–770
Attrition – Abrasion Loss (% w/w) max	0.2	0.2
Crushing Strength (N/sphere) min	25	50
Residual Moisture as Delivered (% w/w) max	1.0	1.0
H₂O Adsorption Capacity 20 °C, 55% RH (% w/w) min	21.0	21.0

*Indicative values under laboratory conditions. Actual performance may vary based on configuration, airflow, and container used.

Primary Areas of Use

• Production and Industrial Uses: in plants for dehydration and purification of polar gases and liquids with impurity removal.
• Drying Systems: used for the drying and purification of technical gases, including methanol, ethanol, and unsaturated hydrocarbons (ethylene, propylene, acetylene, butadiene); also suitable for easily polymerizing substances.
• Laboratories and Quality Control / Analysis: drying and purification of gases and controlled humidity test environments.

Packaging and Availability

• Sealed polyethylene bottle and canister of 1 and 5 kg: suitable for application tests and frequent reorders.
• Sealed polyethylene drums: 15, 20, 25, and 30 kg.
• 135 kg Metal Drum: available with 1.6–2.5 mm granulometry for immediate delivery and 2.5–5 mm only on backorder.
• Big bag: for high-volume industrial supplies.

Immediate availability even in small packages is ideal for those who need flexibility without having to manage large inventories.

Safety and Compliance

The 3A molecular sieve complies with European regulations regarding non-toxicity. The product, new and never used, does not contain relevant quantities of substances whose limit values must be kept under control in the workplace.

Price and Custom Orders

The price shown refers to the quantity selected on the product page, VAT included.
For recurring supplies, large quantities, or specific needs, you can request a customized quotation at the address info@silica-gel.it.