What is 4A Zeolite Powder CAS 1318-02-1?

4A Zeolite Powder CAS 1318-02-1 is a synthetic sodium aluminosilicate with an LTA framework and an effective pore opening of about 4 angstroms. It is also called Zeolite NaA, Sodium Zeolite A, or synthetic Zeolite A, and has EINECS number 215-283-8.

Why is 4A Zeolite Powder associated with CAS 1318-02-1 rather than 69912-79-4?

The title identifies this product as 4A Zeolite Powder. CAS 1318-02-1 is the standard registry number for Zeolite 4A / sodium aluminosilicate, while CAS 69912-79-4 is commonly used for calcium-exchanged 5A molecular sieve. Using the product-name-consistent CAS avoids mixing the 4A detergent grade with 5A molecular sieve.

How does 4A Zeolite Powder work as a phosphate-free detergent builder?

In wash water, the sodium ions in Zeolite 4A exchange with calcium and, to a lesser extent, magnesium ions, which softens the water. This allows surfactants to clean more effectively and makes Zeolite 4A an environmentally preferred replacement for phosphate builders such as STPP.

What detergent-grade specifications matter most for 4A Zeolite Powder?

Key checks include calcium exchange capacity, high whiteness, 45 micron sieve residue, bulk density, loss on ignition, and pH. Typical detergent-grade material is a fine white powder with calcium exchange capacity around 295-315 mg CaCO3/g, whiteness above 95%, bulk density around 0.35-0.45 g/ml, and low oversize residue.

What non-detergent applications are suitable for 4A Zeolite Powder?

Outside detergent builders, Zeolite 4A is used as an adsorbent and desiccant, catalyst support or additive, wastewater and gas-treatment media, and in selected feed or soil-additive formulations. Its controlled pore size, ion-exchange activity, and thermal stability make it useful in these applications.

How should 4A Zeolite Powder CAS 1318-02-1 be stored?

Store it in closed bags or containers in a cool, dry, well-ventilated area away from direct sunlight and strong moisture. Keeping the product dry and protected from humidity helps preserve powder flow and reduces caking.

4A Zeolite Powder CAS 1318-02-1

4A Zeolite Powder CAS 69912-79-4 is a synthetic crystalline aluminosilicate with a defining LTA framework structure , chemically characterized by a uniform pore size of 4 angstroms. Functioning primarily as a high-capacity calcium ion exchanger (builder) in laundry detergents and an auxiliary heat stabilizer in PVC processing, this fine white powder is utilized to remove water hardness ions in cleaning formulations and to absorb acid scavengers in polymer matrices. We provide professional access to this material with competitive factory pricing and the ability to meet customized specifications for various manufacturing requirements. Our commitment to technical transparency ensures that every shipment is accompanied by comprehensive MSDS, TDS, COA documentation to support your quality assurance protocols, and we maintain capacity for consistent bulk supply to facilitate large-scale industrial operations.

CAS: 1318-02-1
Synonyms: Zeolite NaA, Sodium Zeolite A, Synthetic Zeolite A, Sodium aluminosilicate 4A, LTA Zeolite Sodium
Einecs: 215-283-8
Grade: Detergent Grade / Industrial Grade
Package: 25kg PP Bag, 40kg Bag, or 600kg/1000kg Jumbo Bag.

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Product Description

4A Zeolite is a crystalline porous material with a three-dimensional framework. The “4A” refers to the pore size of 4 Angstroms. In the detergent industry, it acts as an ion exchanger.

How it works: The sodium ions inside the zeolite structure are easily exchanged for calcium ions (and to a lesser extent, magnesium) present in hard water. By trapping the calcium, it “softens” the water, allowing surfactants to work efficiently to remove dirt.

Key Features of our Production:

High Whiteness: Our calcination and synthesis process ensures a whiteness of > 96%, which is critical for maintaining the bright appearance of final detergent powders.
Liquid Carrying Capacity: It has a high absorption capacity for liquid surfactants (like Non-ionic surfactants), allowing detergent manufacturers to produce high-concentrate powders.
Low Residue: We monitor the sieve residue (45μm) strictly to ensure the powder dissolves/disperses completely without leaving grit.

1 Physicochemical Properties

2 Applications

3 Storage Conditions

4 Safety Precautions

Physicochemical Properties

The data below represents typical specifications for our Detergent Grade 4A Zeolite.

Parameter	Specification
Appearance	Fine white powder, odorless
Calcium Exchange Capacity (CEC)	≥ 175 mg CaCO3/g (Min. 170)
Whiteness (W=Y10)	≥ 96.0%
pH Value (1% Solution)	10.5 – 11.5 (Alkaline)
Loss on Ignition (800°C)	18.0% – 22.0% (Mainly crystal water)
Average Particle Size (D50)	2.0 – 4.0 µm
Sieve Residue (45 µm / 325 mesh)	≤ 0.5%
Bulk Density	0.35 – 0.50 g/cm³
Aluminum (Al2O3)	~ 27%
Silica (SiO2)	~ 33%

Applications

Laundry Detergents (Powder):
- Main Use: Acts as the principal builder (softener) in phosphate-free detergent powders. It boosts the cleaning power of surfactants.
- Dosage: Typically comprises 20-40% of the total detergent formulation.
PVC Stabilizers:
- Used as a co-stabilizer in PVC heat stabilizers (Ca-Zn stabilizers). It captures Hydrogen Chloride (HCl) released during PVC processing, preventing degradation and discoloration of the plastic.
Soap Bars:
- Added to soap to improve lathering in hard water areas and improve the structure of the bar.
Water Treatment:
- Used in specific industrial wastewater treatments to remove ammonium or heavy metal ions.

For complementary detergent-builder raw materials, see Sodium Metasilicate.

Storage Conditions

Moisture Sensitivity: Zeolite 4A is highly hygroscopic (loves water). If left open, it will absorb moisture from the air, reducing its effectiveness as a builder.
Warehouse: Store in a dry, ventilated warehouse.
Stacking: Do not stack pallets too high to prevent the powder in bottom bags from compacting, although Zeolite generally has good anti-caking properties compared to other salts.
Seal: Re-seal partial bags immediately after use.

Safety Precautions

Inhalation: It is a fine dust. Long-term inhalation of high concentrations of any dust can be harmful. Workers should wear dust masks (N95/FFP2) during hopper feeding.
Skin/Eye Contact: The solution is alkaline (pH ~11).
- Eyes: Can cause irritation. Rinse immediately with water.
- Skin: Wash with soap and water after handling. Prolonged contact may dry out the skin.
Ecological: Zeolite 4A is considered environmentally friendly as it is inert and breaks down into natural aluminosilicates (sand/clay) in the environment, unlike phosphates which cause algal blooms.

FAQ - Technical & Supply Chain

Q:
What is 4A Zeolite Powder CAS 1318-02-1?

A: 4A Zeolite Powder CAS 1318-02-1 is a synthetic sodium aluminosilicate with an LTA framework and an effective pore opening of about 4 angstroms. It is also called Zeolite NaA, Sodium Zeolite A, or synthetic Zeolite A, and has EINECS number 215-283-8.
Q:
Why is 4A Zeolite Powder associated with CAS 1318-02-1 rather than 69912-79-4?

A: The title identifies this product as 4A Zeolite Powder. CAS 1318-02-1 is the standard registry number for Zeolite 4A / sodium aluminosilicate, while CAS 69912-79-4 is commonly used for calcium-exchanged 5A molecular sieve. Using the product-name-consistent CAS avoids mixing the 4A detergent grade with 5A molecular sieve.
Q:
How does 4A Zeolite Powder work as a phosphate-free detergent builder?

A: In wash water, the sodium ions in Zeolite 4A exchange with calcium and, to a lesser extent, magnesium ions, which softens the water. This allows surfactants to clean more effectively and makes Zeolite 4A an environmentally preferred replacement for phosphate builders such as STPP.
Q:
What detergent-grade specifications matter most for 4A Zeolite Powder?

A: Key checks include calcium exchange capacity, high whiteness, 45 micron sieve residue, bulk density, loss on ignition, and pH. Typical detergent-grade material is a fine white powder with calcium exchange capacity around 295-315 mg CaCO3/g, whiteness above 95%, bulk density around 0.35-0.45 g/ml, and low oversize residue.
Q:
What non-detergent applications are suitable for 4A Zeolite Powder?

A: Outside detergent builders, Zeolite 4A is used as an adsorbent and desiccant, catalyst support or additive, wastewater and gas-treatment media, and in selected feed or soil-additive formulations. Its controlled pore size, ion-exchange activity, and thermal stability make it useful in these applications.
Q:
How should 4A Zeolite Powder CAS 1318-02-1 be stored?

A: Store it in closed bags or containers in a cool, dry, well-ventilated area away from direct sunlight and strong moisture. Keeping the product dry and protected from humidity helps preserve powder flow and reduces caking.

Ordering & Documentation

Key information for document requests, quotations, and supply planning.

Documents

COA, TDS, SDS/MSDS and packing details are available on request.

Quotation

Send the CAS number, grade, quantity, packing preference and destination.

Sample & Supply

Support is available for samples, trial orders, bulk and repeat supply.

Storage & Shipping

Product-specific conditions are confirmed before order.

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