Chemical · Product Detail
Sulfonated Asphalt
Asphalt-derived drilling-fluid additive for shale stabilization and fluid-loss control.
Request a Quote
Sulfonated Asphalt at a Glance
ZXCHEM is a sulfonated asphalt supplier and exporter in China. Sulfonated Asphalt (Sodium Asphalt Sulfonate, CAS 68201-32-1) is a black-brown free-flowing powder for oilfield drilling fluids.
Request a free sample for testing.
Standard lead time is approximately 14 days from order confirmation.
Sulfonated Asphalt Specifications
The HTHP value is a filtrate-reduction result under the test conditions in the TDS. Solubility fractions use their own test methods.
Commercial Information
Storage & Shipping
Storage Conditions
Store in sealed original lined bags in a cool, dry, ventilated place. Keep away from strong oxidizers, heat and ignition sources; protect pallets from water and contamination.
Shelf life
One year in sealed original packaging under recommended dry storage conditions.
Packaging
25 kg lined bags
Handling & Protection
Control powder transfer with local extraction. Avoid airborne dust, use suitable gloves, eye protection and work clothing and prevent dust accumulation near ignition sources. Use appropriate respiratory protection where the exposure assessment requires it.
What Is Sulfonated Asphalt?
Sulfonated asphalt, CAS 68201-32-1, is an asphalt-derived drilling-fluid additive with sulfonate groups. It is partly water-soluble and partly oil-soluble, so it plugs micro-fractures and pore throats in shale, improves filter cake and reduces HTHP fluid loss in water-based muds.
The supply specification sets moisture ≤8.0%, pH 8.0–9.0, DMSO-soluble matter ≥45%, water-soluble matter ≥75%, oil-soluble matter ≥28% and acid-insoluble matter ≤15%. HTHP filtrate reduction is ≥40 mL under the test conditions in the TDS.
Performance depends on the base fluid, salinity, solids and temperature, so the treatment level is set by pilot tests of rheology, filtration and lubricity. The powder is not regulated as dangerous goods; control dust and ignition sources and keep the bags dry.
As a sulfonated asphalt supplier and exporter in China, ZXCHEM packs the black-brown free-flowing powder in 25 kg lined bags.
See all oil and gas chemicals in our catalog.
Sulfonated Asphalt Applications
Shale stabilization
Seals micro-fractures and reduces shale hydration in water-based muds. Treatment is tested on the actual formation and fluid.
HTHP fluid-loss control
Improves filter cake and reduces HTHP filtrate. Rheology and solids loading are checked before the treatment is set.
Lubricity
Reduces torque and drag in water-based drilling fluids. Lubricity is tested in the complete mud system.
Why Source Sulfonated Asphalt from ZXCHEM
Combined chemical orders
Source several chemical raw materials through one ZXCHEM contact. We coordinate product selection, quotations and suitable consolidated shipments so you can plan the order with one team.
Dedicated R&D Laboratory
Discuss specifications, sample results and application questions with our technical team. Our dedicated R&D laboratory supports product testing and helps clarify material selection.
Experienced Chemical Logistics
ZXCHEM has more than 30 years of experience in dangerous-goods transportation. We coordinate suitable shipments through logistics companies in which we hold equity interests in Qingdao, Shanghai, Guangzhou and Tianjin.
Dedicated Purchasing Support
Your account manager follows the order from quotation and contract signing through shipment and after-sales support. One contact coordinates technical documents, commercial details and delivery updates.
Sulfonated Asphalt FAQ
Which Sulfonated Asphalt grade should I choose?
The listed supply specification is Water-soluble matter ≥75%. Check the TDS for assay and impurity limits, then test a sample for compatibility and performance in your process.
Can I request a Sulfonated Asphalt sample for testing?
Yes. We can provide free samples for testing. Tell us the application, the grade you need and the tests you plan to run.
How is Sulfonated Asphalt packed and shipped?
Standard packing is 25 kg lined bags. The usual MOQ is 1,000 kg, with a lead time of approximately 14 days from order confirmation. It ships as non-dangerous goods.
Which documents are available for Sulfonated Asphalt?
The TDS lists the supply specification and the SDS covers safety and transport; both can be downloaded on this page. Each shipment comes with a batch COA.
Related Products
Request a Quote for Sulfonated Asphalt
Tell us the required grade, quantity, destination port and documents. We reply within one business day.
We use your details to respond to this enquiry. You can also contact sales@zxchem.com.cn. Read our Privacy Policy.