Organic chromium crosslinking agent
Organic chromium crosslinking agents slowly release Cr³⁺, which reacts with partially hydrolyzed polyacrylamide to form a high-strength gel. The crosslinking time and gel strength can be adjusted according to application requirements.
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Organic chromium crosslinking agent
Product Description
Organic chromium crosslinking agents slowly release Cr³⁺, which reacts with partially hydrolyzed polyacrylamide to form a high-strength gel. The crosslinking time and gel strength can be adjusted according to application requirements. This product is primarily used in polymer-based displacement control technology and for water blocking and profile control using polymer gels.
Product Features
1. It slowly releases Cr³⁺.
2. It cross-links with partially hydrolyzed polyacrylamide to form a high-strength gel.
3. The cross-linking time and gel strength can be adjusted according to application requirements.
4. The product has a mild odor.

Application
This product is primarily used in polymer-based drive control technology and polymer gel water blocking and profile control.
Specifications
| Item | Value | |
| Appearance | Dark green liquid | |
| Gelation Time, h | ≥5h | Adjust according to construction requirements |
| Breakthrough Pressure Gradient, MPa/m | 0.5~2.5 | Adjust according to construction requirements |
| Water Blocking Efficiency, % | 80~95 | Adjust according to construction requirements |
| Viscosity Retention Rate After 7 Days at Constant Temperature, % | ≥98 | |
| Oil Blocking Efficiency, % | ≤20% |
Directions for Use
Add directly to the polyacrylamide solution and stir until thoroughly mixed. Adjust the concentrations of the polymer and crosslinking agent according to application requirements. The typical concentration range for this product is 0.2–0.5%.
Packaging Specifications
Depending on the customer’s needs, the product will be packaged in ton containers or 200-kg drums and delivered by courier to the designated location by the date specified by the customer.
Dongying Focus Petroleum Technology Co., Ltd. is a professional oilfield service company specializing in the research, development, and manufacturing of oilfield chemicals. We are a trusted manufacturer and supplier of specialized chemical solutions for heavy oil recovery, hydraulic fracturing and acidizing, enhanced oil recovery (EOR), water shutoff, and profile control applications in China.
Since our establishment, we have built a highly skilled technical service team and established long-term strategic partnerships with research institutes affiliated with CNPC, Sinopec, CNOOC, Kerui Group, as well as leading universities including China University of Petroleum (East China), Shandong University, and Tianjin University. Our high-performance oilfield chemicals, experienced professionals, and comprehensive technical services have earned widespread recognition throughout the industry.

Our major partners include CNPC, Sinopec, CNOOC, Kerui, and other leading oil & gas operators and oilfield service companies. To date, we have successfully supplied products and technical services to customers in more than 10 countries and regions, including Kazakhstan, Colombia, Brazil, and Venezuela.
Are we traders or manufacturers?
We are a primary manufacturer of oilfield chemicals and operate our own production facilities.
How are the products packaged?
Solids are generally packaged in 25-kg bags, while liquids can be packaged according to customer requirements, typically in 25-liter drums, 200-liter drums, or IBC containers.
How long is the lead time?
If the goods are in stock, delivery typically takes 5–7 days; if they are out of stock, delivery takes 10–15 days, depending on the quantity. The times listed above refer to delivery to a port in China.
Do you offer OEM/ODM services? Can you customize my logo or packaging?
We offer OEM/ODM services and can customize customers' logos and packaging.
Can I request free samples before placing a bulk order?
We can provide free samples.
Do you offer DDP door-to-door delivery with customs clearance and tax included?
Of course.
What payment methods do you accept? (T/T, PayPal, credit card, L/C?)
We accept T/T.
What are your payment terms?
30% deposit + 70% balance to be paid in full before shipment







