Polyacrylamide, referred to as PAM, is a high molecular-weight polymer. Due to its unique chemical structure, PAM is widely used in many industries. In fields such as water treatment, petroleum, mining and papermaking, PAM is used as an effective flocculant to improve water quality, increase mining efficiency, and improve paper quality. Although PAM has low solubility in water, through specific dissolution methods, we can effectively dissolve it in water to exert its effectiveness in various industrial applications. Operators should pay attention to its specific operating instructions before use. and precautions to ensure product efficacy and personal safety.
Appearance and chemical properties of Polyacrylamide
PAM are usually sold in the form of powder or emulsion. Pure PAM powder is a white to light yellow fine powder that is slightly hygroscopic. Due to its high molecular weight and viscosity, PAM dissolves slowly in water. Specific dissolution methods need to be used when dissolving PAM to ensure that it is fully dissolved in water.
How to use PAM
When using PAM, you should first select an appropriate Flocculant with suitable specifications according to the specific application scenarios and needs. Secondly, it is very necessary to conduct jar tests with water samples and the flocculant. During the flocculation process, the stirring speed and time must be controlled to obtain the best flocculation effect. At the same time, the dosage of flocculant should be regularly checked and adjusted to ensure that water quality and mining and other process parameters meet the requirements. In addition, pay close attention to the reaction effect of the flocculant during use, and take timely measures to adjust if abnormal conditions occur.
How long does it take to expire after dissolving?
Once PAM is completely dissolved, its effective time is mainly affected by temperature and light. At room temperature, the validity period of PAM solution is usually 3-7 days depending on the type of PAM and the concentration of the solution. And it's best used within 24-48 hours. PAM solution may lose effectiveness within a few days if exposed to sunlight for extended periods. This is because, under the action of sunlight, the PAM molecular chains may break, causing decrease of its flocculation effect. Therefore, the dissolved PAM solution should be stored in a cool place and used as quickly as possible.
Precautions
You need to pay attention to the following things when using PAM:
Safety Issues: When handling PAM, appropriate personal protective equipment should be worn, such as chemical protective glasses, lab coats, and chemical protective gloves. At the same time, avoid direct skin contact with PAM powder or solution.
Spills and Sprays: PAM becomes very slippery when combined with water, so use extra caution to prevent PAM powder from spilling or being oversprayed on the ground. If accidentally spilled or sprayed, it may cause the ground to become slippery and pose a hidden danger to personnel safety.
Cleaning and contact: If your clothes or skin accidentally get PAM powder or solution, do not rinse directly with water. Gently wiping off PAM powder with a dry towel is the safest method.
Storage and Expiration: Granular PAM should be stored in a light-proof container away from sunlight and air to maintain its effectiveness. Prolonged exposure to sunlight and air may cause the product to fail or even deteriorate. Therefore, appropriate packaging and storage methods should be selected to ensure product quality and stability. If the product is found to be invalid or expired, it should be dealt with in time and replaced with a new product to avoid affecting normal use and safety. At the same time, attention should be paid to checking the shelf life of the product and confirming its effectiveness before use through relevant tests or inspections to ensure that it meets standard requirements.
Post time: Oct-30-2024