Cocamide DEA/CDEA6501-92% (Ninol) may encounter typical issues and their solutions in practical applications as follows:
1. Unsatisfactory thickening effect — This product exhibits optimal thickening performance only in the presence of salt (e.g., sodium chloride). Check whether the appropriate amount of salt has been added to the formulation. The recommended salt dosage is typically 0.5%~2.0% of the total system weight. Add gradually and stir until the desired viscosity is achieved. Also, ensure the system pH is within the range of 6.0~8.0, as overly acidic or alkaline conditions may affect thickening performance.
2. Product stratification or cloudiness — The normal appearance of this product is a light yellow to amber transparent viscous liquid. If stratification occurs, it may be due to storage at too low a temperature (below 10°C). Place the product at 20~30°C to slowly warm up, stir evenly, and then use. If cloudiness is accompanied by an off-odor, it may indicate microbial contamination; it is recommended to replace the batch and strengthen storage management.
3. Insufficient foam or rapid foam collapse — As a foam stabilizer, this product needs to be used in conjunction with anionic surfactants (e.g., AES, LAS). The recommended ratio is 10%~30% of the main surfactant. If the formulation contains high levels of oils or silicones, foam may be suppressed; adjust the formulation balance accordingly.
4. Complaints of skin irritation — This product contains residual diethanolamine, which may cause skin and eye irritation. It is recommended to strictly control the dosage (typically 2%~5% in shampoos) and combine with mild amphoteric surfactants (e.g., betaines) to reduce overall irritation. The final product pH is recommended to be controlled between 5.5 and 6.5, close to the natural pH of the skin.
| Parameter Item | Specification Indicator |
|---|---|
| Product Model | Cocamide DEA/CDEA6501-92% |
| CAS No. | 68603-42-9 |
| Active Content | ≥92% |
| Appearance | Light yellow to amber transparent viscous liquid |
| Type | Nonionic surfactant (Alkanolamide) |
| Recommended Storage Temperature | 10~40°C |
| GHS Hazard Classification | Skin irritation (Category 2), Eye irritation (Category 2), Suspected carcinogenicity (Category 2) |
Step 1: Organize problem information. Before contacting technical support, please prepare the following information to quickly locate the issue: product batch number (located on the packaging drum label), approximate composition of the formulation used, specific description of the problem (photos are better), and operating conditions (temperature, pH, stirring method, etc.).
Step 2: Contact the Guoli Chemical technical team. You can obtain professional technical support through the following channels: call the official customer service hotline of Guoli Chemical (please refer to the latest number published on the official website), or submit a technical consultation ticket via the online customer service/message system on the corporate official website. For bulk purchasing customers, you can directly contact your dedicated business manager to receive one-on-one technical engineer on-site or remote guidance service.
Step 3: Send samples for analysis (if necessary). If the problem cannot be resolved through remote communication, Guoli Chemical offers a sample delivery testing service. Please send the problematic batch sample along with a reference sample to the Guoli Chemical Technical Center. The technical team will issue an analysis report and solution recommendations within the agreed working days after receiving the samples.