Quinclorac Safener
Quinclorac Safener is a premium herbicide safener designed to protect crops from quinclorac-induced injury while maintaining effective weed control. As industry leaders, we provide high-quality safener solutions for modern agricultural needs.
Quinclorac Safener Product Specifications
- Chemical Name: 1,8-Naphthalic anhydride
- Appearance: White to off-white crystalline powder
- Purity: ≥98%
- Molecular Weight: 198.18 g/mol
- Melting Point: 274-276°C
- Solubility: 1 g/L in water at 20°C
- Application Rate: 0.25-0.5% of quinclorac formulation
- Shelf Life: 24 months when stored properly
Technical Parameters
| Parameter | Value | Test Method |
|---|---|---|
| Volatile Matter | ≤0.5% | GB/T 1600 |
| pH Value (1% solution) | 6.0-7.5 | GB/T 1601 |
| Heavy Metals (as Pb) | ≤10 ppm | ICP-MS |
| Water Content | ≤0.2% | Karl Fischer |
| Residue on Ignition | ≤0.1% | GB/T 7531 |
Quinclorac Safener Usage Guidelines
For optimal performance, follow these application recommendations:
- Mix with quinclorac at 0.25-0.5% of total formulation weight
- Apply as a tank mix with quinclorac herbicide
- Use in rice fields 1-3 days before quinclorac application
- Maintain proper water management during application
- Do not apply under drought conditions
Quinclorac Safener FAQ
What is the mechanism of action for Quinclorac Safener?
Quinclorac Safener works by inducing glutathione S-transferase (GST) activity in crops, which accelerates the detoxification of quinclorac. The safener enhances the crop's natural defense mechanisms without affecting the herbicide's efficacy on target weeds. This protection mechanism typically begins within 12-24 hours after application and provides protection for 7-10 days.
How does Quinclorac Safener improve crop safety?
Quinclorac Safener reduces oxidative stress caused by quinclorac by modulating the plant's metabolic pathways. It specifically protects rice plants from leaf chlorosis, stunting, and root inhibition that may occur with quinclorac application. Field trials show crop injury reduction from 25-30% to less than 5% when using the safener at recommended rates.
What crops can benefit from Quinclorac Safener?
Quinclorac Safener is primarily used in rice cultivation, particularly for Japonica and Indica rice varieties. It also shows protective effects in certain turfgrass species and some cereal crops when quinclorac is applied. The safener is not recommended for use in broadleaf crops or sensitive grass species outside its labeled uses.
Compatibility Information
| Component | Compatibility | Notes |
|---|---|---|
| Quinclorac 75DF | Excellent | Standard formulation |
| Urea Fertilizers | Good | May require pH adjustment |
| Organophosphate Insecticides | Fair | Test jar mix first |
| Adjuvants | Good | Non-ionic recommended |
Storage and Handling
- Store in original packaging at 5-30°C
- Keep container tightly closed when not in use
- Protect from moisture and direct sunlight
- Do not store near food or feed products
- Use dedicated measuring equipment
Quinclorac Safener FAQ (Continued)
What is the optimal application timing for Quinclorac Safener?
The ideal application window is 24-48 hours before quinclorac treatment. This allows sufficient time for the safener to activate the crop's defense mechanisms. For direct-seeded rice, apply at the 2-3 leaf stage. In transplanted rice, apply 5-7 days after transplanting when plants have recovered from transplant shock.
Can Quinclorac Safener be used with other herbicides?
Yes, Quinclorac Safener maintains its effectiveness when mixed with most common rice herbicides including bensulfuron-methyl, pretilachlor, and butachlor. However, we recommend conducting a jar test before large-scale mixing, especially when combining with EC formulations. The safener doesn't interfere with the weed control efficacy of companion herbicides.
What environmental conditions affect Quinclorac Safener performance?
Quinclorac Safener performs best when daytime temperatures are between 20-30°C. Heavy rainfall within 6 hours of application may reduce effectiveness. Drought stress reduces safener uptake, so ensure adequate soil moisture. Water management is crucial - maintain 3-5 cm of standing water for 3-5 days after application for optimal results.
Performance Data
| Parameter | Without Safener | With Safener | Improvement |
|---|---|---|---|
| Crop Injury (%) | 28.5 | 3.2 | 89% reduction |
| Weed Control (%) | 92.4 | 91.8 | No significant difference |
| Yield (kg/ha) | 5,210 | 5,780 | +570 kg/ha |
Regulatory Status
- EPA Registration: Pending
- EU Approval: Not currently registered
- China Registration: Available for rice use
- WHO Hazard Class: U (Unlikely to present hazard)
Quinclorac Safener FAQ (Final Section)
Is Quinclorac Safener safe for rotational crops?
Yes, Quinclorac Safener has no residual effect on subsequent crops when used at recommended rates. The compound degrades rapidly in soil with a half-life of 3-5 days. Field studies show no phytotoxicity to wheat, soybean, or vegetable crops planted 30 days after rice harvest in treated fields.
What personal protective equipment is required when handling Quinclorac Safener?
Standard herbicide PPE is sufficient: long-sleeved shirt and pants, chemical-resistant gloves (nitrile recommended), goggles, and closed-toe shoes. A NIOSH-approved particulate mask (N95) is advised when handling dust formulations. The safener has low acute toxicity (LD50 >5000 mg/kg) but proper handling procedures should always be followed.
How does Quinclorac Safener compare to other safeners on the market?
Quinclorac Safener offers superior protection specifically for quinclorac applications compared to generic safeners. It has 20-30% better crop protection than dichlormid-based safeners for rice. The product's unique formulation provides faster activation (within 12 hours) and longer duration of protection (7-10 days) than most alternatives.
Packaging Options
- 1 kg aluminum foil bags (20 bags per carton)
- 5 kg polyethylene containers (4 per case)
- 25 kg fiber drums with polyethylene liner
- Custom formulations available for large-scale users