How to store polypropylene glycol PPG-600? How long is the shelf life?

Polypropylene glycol PPG-600 should be stored in a cool, dry, and well-ventilated environment at 5°C to 40°C, with the container sealed tightly; under recommended conditions, unopened original packaging can usually be stably stored for 2 years, but the product database currently does not list official shelf life data.

Detailed Explanation

Polypropylene glycol PPG-600 is a chemically stable non-ionic polyether polyol that does not decompose under normal temperature and pressure. The key points for its storage are: prevent moisture absorption, avoid high temperatures, and keep away from strong oxidants. The product has some hygroscopicity and will slowly absorb moisture when exposed to air, so keeping the packaging container sealed is crucial for maintaining long-term product quality stability. In low-temperature environments (below 5°C), the product's viscosity will significantly increase or even solidify, but this is a physical change that does not affect chemical properties. Before use, simply warm the product to room temperature and stir evenly to restore its normal state.

Regarding shelf life, the Guanli Chemical product database currently does not include official shelf life data for this product. Based on industry practices and common experience with similar polyether products, under strict adherence to recommended storage conditions and with the container unopened, polypropylene glycol PPG-600 can usually maintain stable technical indicators for 24 months from the date of manufacture. If the product has been opened and used, it is recommended to use it within 6 months and immediately reseal the container after each use.

During storage, if significant changes in product appearance are observed (such as severe turbidity, stratification, discoloration, or odor), or if there is any doubt about the product's condition before use, it is recommended to contact Guanli Chemical's technical service team for quality re-inspection and confirmation. Do not use the product directly.

Technical Parameters (Storage Related)

Storage Key Recommendations

• Seal and prevent moisture: The product is hygroscopic; after opening, immediately tighten the lid and consider adding a moisture-proof liner at the container opening.
• Temperature control: Avoid storing outdoors, in high-temperature workshops, or near heat sources such as steam pipes and boilers; in low-temperature winter areas, pay attention to freeze protection; if solidified, thaw by warming and stir evenly before use.
• Separate storage: Store in dedicated warehouses or areas, strictly separated from strong oxidants (e.g., peroxides, concentrated nitric acid) and strong acids; storage areas should be equipped with anti-leakage trays or containment dikes.
• First-in, first-out: It is recommended to implement the "first-in, first-out" inventory management principle to avoid long-term accumulation.

Notes

• Although this product is not a hazardous chemical, it must not be stored together with food, beverages, or feed items in the same warehouse.
• If the product needs to be reused after long-term storage beyond the suggested period, it is recommended to sample and test key indicators such as hydroxyl value, moisture content, acid value, and viscosity; confirm they are qualified before use.
• Disposal of waste should comply with local environmental regulations; it is recommended to treat in licensed incineration facilities and not discharge directly into water bodies or soil.