Microsorb® Attapulgite Adsorbent & Filtration Media
Microsorb® Attapulgite Adsorbent & Filtration Media - 25kg (55.11 lbs) Box / 30/60 is backordered and will ship as soon as it is back in stock.
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Buy 2+ 908kg (2000lb) Bulk Bags to save 7%, or 4+ 908kg (2000lb) Bulk Bags to save 12% — auto-applied at checkout.
| Qty | Discount |
|---|---|
| Buy 2 | 7% off each |
| Buy 4 | 12% off each |
Overview
Microsorb® 30/60 RVM by Clariant is a thermally activated, granular attapulgite adsorbent and filtration aid designed for liquid clarification, contaminant removal, agricultural carrier applications, and other industrial processes requiring precisely sized sorptive media.
The RVM grade combines a high level of sorptivity with intermediate particle strength. It can be used in fixed beds, cartridges, and suitable contact-filtration systems to decolorize, deodorize, and remove surfactants, water, and other polar impurities from organic liquids.
Primary applications
- Fuel and oil filtration: Filtration of contaminants from jet fuel, kerosene, non-edible oils, and other compatible liquid streams
- Liquid clarification: Removal of suspended contaminants and polar impurities from process liquids
- Decolorization and deodorization: Treatment of organic liquids containing unwanted color bodies, odors, or oxidation-related impurities
- Surfactant and moisture removal: Adsorption of surfactants, low concentrations of water, and other polar contaminants
- Static-bed and cartridge filtration: Granular media for packed-bed, cartridge, and related filtration configurations
- Agricultural carrier applications: Carrier and diluent media for compatible pesticide and toxicant formulations
- Industrial sorbent applications: Sorptive granular media for selected cleanup, surface treatment, and industrial handling uses
Why choose Microsorb®?
- Thermally activated attapulgite with a high level of sorptivity
- Granular 30/60 mesh sizing for controlled flow and filtration performance
- Intermediate particle strength suitable for a range of sorbent and filtration systems
- Effective for decolorization, deodorization, and removal of polar impurities
- Suitable for static-bed, cartridge, and appropriate contact-filtration applications
- Available in multiple packaging formats for laboratory, trial, and production quantities
- Manufacturer testing indicates potential reduction of heavy-metal concentrations and certain microbial contaminants in appropriate liquid-treatment systems
Performance depends on the liquid composition, contaminant concentration, equipment, contact time, and operating conditions. Customers should validate suitability for their individual process.
Grade and particle size
| Grade | Description |
| 30/60 RVM | Regular Volatile Matter granular attapulgite with high sorptivity and intermediate particle strength |
| Nominal particle range | 30/60 mesh, approximately 0.60 to 0.25 mm |
Other Microsorb® particle sizes or grades may be available by request. Contact Sorbents Direct to discuss current availability and application requirements.
Typical properties
| Product family | Adsorbent and filtration aid |
| Base material | Thermally activated attapulgite |
| Chemical composition | (Mg,Al)5Si8O20·4H2O |
| Grade | RVM — Regular Volatile Matter |
| Physical form | Granular |
| Color | Light cream |
| Particle size | 30/60 mesh; approximately 0.60 to 0.25 mm |
| 30/60 mesh fraction | 93% typical |
| pH in deionized water | 9.2 typical |
| Free-fall bulk density | 36 lb/ft³ typical |
| Specific gravity | 2.4 |
| Free moisture as produced | 7% typical |
| Volatile matter | 8% typical at 1,200°F on a moisture-free basis |
| Water solubility | Insoluble |
| Manufacturer | Clariant |
Values shown are typical published properties and are not absolute specifications. Lot-specific values may vary within the manufacturer's established quality limits and can be confirmed through a Certificate of Analysis.
Quality assurance
Microsorb® production lots are evaluated against established quality specifications. Depending on the grade and lot, testing may include:
- Free moisture
- Free-fall bulk density
- Oversize particle percentage
- Fines percentage
- Percentage within the specified mesh range
A recent Microsorb® 30/60 RVM lot supplied through Sorbents Direct reported the following results:
| Inspection characteristic | Specification | Lot result |
| Free moisture | 3.0–8.0% | 7.7% |
| Free-fall density | 30.0–38.0 lb/ft³ | 36.5 lb/ft³ |
| +30 mesh | ≤15.0% | 11.6% |
| -60 mesh | ≤3.5% | 0.9% |
| 30/60 mesh | ≥85.0% | 87.5% |
The lot data above is provided as a representative example only. Request the COA associated with your shipped lot for applicable production results.
Packaging & availability
| Package | Configuration |
| 25kg (55lb) | One box |
| 100kg (220lb) | Pallet containing 4 × 25kg boxes |
| 908kg (2,000lb) | Production pallet for larger-volume industrial use |
- Lead time: Stocked formats typically ship within 1-2 business days, subject to inventory and order confirmation
- Freight: Pallet quantities ship by LTL freight with calculated or confirmed freight pricing
- Volume orders: Contact us for multi-pallet quantities, recurring supply, truckload pricing, or alternative packaging requirements
Handling & storage
- Store in a dry location with containers closed
- Minimize airborne dust during loading, unloading, and handling
- Use adequate local or general ventilation where occupational exposure limits could be exceeded
- Do not use compressed air to clean spilled material
- Use suitable personal protective equipment as directed by the current Safety Data Sheet
- Be aware that spilled material may create a slippery surface, particularly when wet
Important: Microsorb® 30/60 RVM contains crystalline silica. Avoid breathing dust and review the current Safety Data Sheet before handling or use.
Documentation & support
Available product documentation may include:
- Safety Data Sheet (SDS)
- Technical Data Sheet (TDS)
- Lot-specific Certificate of Analysis (COA)
- Lot traceability information
- Technical application assistance
Visit our Documentation Center or contact Sorbents Direct to discuss your application, filtration setup, package requirements, and order volume.
Need help selecting the right media?
Selecting an adsorbent or filtration medium depends on the liquid being treated, contaminant profile, moisture level, particle size, contact time, flow rate, pressure drop, and process objectives. Sorbents Direct can help review your application and identify an appropriate product or grade for process testing.
Questions & answers
Q: What is Microsorb® 30/60 RVM?
A: Microsorb® 30/60 RVM is a thermally activated granular attapulgite product manufactured by Clariant for sorbent, filtration-aid, and agricultural carrier applications.
Q: What does RVM mean?
A: RVM means Regular Volatile Matter. Clariant describes the RVM grade as having a high level of sorptivity and an intermediate level of particle strength.
Q: What contaminants can Microsorb® remove?
A: Microsorb® can be used to decolorize, deodorize, and remove surfactants, water, and other polar impurities from compatible organic liquids. Performance depends on the process and should be validated through application testing.
Q: Can Microsorb® be used for fuel and oil filtration?
A: Yes. Clariant identifies jet fuel, kerosene, various non-edible oils, and other compatible liquid streams among the filtration applications for Microsorb® products.
Q: Can Microsorb® reduce heavy-metal concentrations?
A: Clariant reports that testing has shown its attapulgite products can reduce concentrations of heavy metals in certain liquid streams. Removal performance depends on the contaminant, liquid chemistry, operating conditions, and treatment design.
Q: Is Microsorb® intended for high-moisture feed streams?
A: The manufacturer recommends Microsorb® RVM where the incoming concentration of water as a contaminant is relatively low. Applications with substantial moisture may require a different adsorbent or treatment approach.
Q: How is the 30/60 mesh grade used?
A: Granular Microsorb® grades may be used in static beds, cartridge systems, and other compatible filtration configurations. Equipment suitability and pressure-drop requirements should be evaluated before use.
Q: How does Microsorb® differ from Ultra-Clear®?
A: Both are granular attapulgite-based filtration media, but they are produced by different manufacturers and have different published properties, quality specifications, and application positioning. Product selection should be based on the process, contaminants, equipment, and validation requirements.
Q: What package sizes are available?
A: Standard options include a 25 kg (55 lb) box, a 100 kg (220 lb) pallet containing four boxes, and a 908 kg (2,000 lb) production pallet.
Q: Can I request a Certificate of Analysis?
A: Yes. Lot-specific Certificates of Analysis are available upon request for qualifying orders and shipped production lots.
Q: How quickly can Microsorb® ship?
A: Stocked formats typically ship within 1–2 business days, subject to inventory, freight scheduling, and final order confirmation.

