Question

How to store MOA-9 (AEO-9)? What is the shelf life?

Answer
2026-06-06 官方文档 MOA-9(AEO-9)

MOA-9 (AEO-9) should be stored in a cool, dry, well-ventilated warehouse, strictly sealed and away from fire and heat sources. Under recommended conditions, the shelf life is typically 2 years from the date of production.

Detailed Description

MOA-9 (AEO-9) is a nonionic surfactant, chemically stable but slightly hygroscopic. Proper storage is crucial to maintain its active content (≥99.0%) and core properties such as emulsification, wetting, and dispersion. The product appears as a colorless transparent liquid to white paste at room temperature. Storage at too low a temperature may cause the product to solidify (solidification point approx. 5~10°C), while excessively high temperatures may lead to color deepening or structural changes. Therefore, extreme temperature environments should be avoided.

The original packaging provided by Haian Guoli Chemical Co., Ltd. includes 50kg plastic drums, 200kg plastic drums, and IBC totes, all with sealed designs. After opening, the container should be immediately resealed. Unused product must not be returned to the original packaging to prevent cross-contamination. The product should be strictly isolated from incompatible substances such as strong oxidizers and strong acids, and kept away from food, feed, and drinking water sources.

Technical Parameters

Parameter NameParameter ValueDescription
Solidification Pointapprox. 5~10°CThe product solidifies at low temperatures; storage temperature should be above this range
Flash Point>150°CFlash point is relatively high, but still keep away from open flames and high-temperature heat sources
HygroscopicitySlightly hygroscopicContainer must be kept strictly sealed to prevent moisture absorption
Chemical StabilityStable in dilute acid and alkali solutionsHigh temperature and strong alkaline conditions may cause hydrolysis; such extreme environments should be avoided
Original Packaging Specifications50kg/200kg plastic drums, IBC totes
Shelf LifeNot individually listed in this product's SDSIndustry common recommendation is 2 years from production date (sealed original packaging, under recommended conditions)

Application Recommendations

To ensure the product maintains optimal performance (such as cloud point 55~65°C, HLB value 13.6, hydroxyl value 85~100 mg KOH/g, etc.), it is recommended to follow the first-in, first-out inventory management principle. If the product solidifies or precipitates under low-temperature conditions, before use, place it in a warm environment to slowly thaw and stir gently to homogenize. Do not heat directly with open flames or high-temperature steam to avoid local overheating that may cause degradation and failure of the product.

Precautions

  • The storage area should be equipped with proper leak containment facilities and emergency eyewash stations and showers.
  • This product is harmful to aquatic life with long-lasting effects (H412). Do not discharge leaks or waste products directly into sewers, waterways, or soil.
  • Keep packaging labels clear and intact at all times. Do not store together with food, beverages, or feed.
  • If the product is stored beyond the recommended shelf life, it is advised to sample and test core indicators such as active content, pH value (1% aqueous solution should be 5.0~7.0), and cloud point before use. Only use if confirmed to be acceptable.