Shelf life and storage conditions for silica sol
Release date:
2025-11-20
To ensure the performance and safe use of silica sol, it is recommended to store it within a temperature range of 0–40℃ and avoid exposing it directly to extreme temperatures or sunlight. Additionally, prevent the silica sol from being left open to the air for extended periods to avoid degradation in performance or spoilage.
Shelf life and storage conditions for silica sol
To ensure the performance and safe use of silica sol. It is recommended to store within a temperature range of 0–40℃ and avoid direct exposure to extreme temperatures or sunlight. In addition, avoid leaving silica sol exposed to the air for extended periods to prevent performance degradation or spoilage.
Shelf life of silica sol
1. Alkaline silica sol ： Due to its higher stability, alkaline silica sol typically has a longer shelf life and can maintain its performance for up to one year.
2. Neutral or acidic silica sol ： These types of silica sols may be less stable than alkaline silica sols, and therefore have a relatively shorter shelf life.
3. Large-particle-size silica sol ： Compared to small-particle-size silica sols, large-particle-size silica sols generally have a longer shelf life.
When silica sol fails, it typically manifests as a gradual increase in viscosity and gelation. If the viscosity of the silica sol does not significantly increase after its expiration date, cautious use may be considered.
Storage conditions for silica sol
1. Temperature control ： The ideal storage temperature range is 5–40℃, to avoid gelation caused by temperatures that are too low (below 0℃) or to prevent the stability of the silica sol from being compromised by temperatures that are too high (above 40℃).
2. Avoid sun exposure: It should be stored in a cool place, away from direct sunlight, to prevent changes in the properties of the silica sol or the occurrence of photochemical reactions. Silica sol stored in white plastic buckets should be protected from prolonged exposure to brightly lit environments, as algae may proliferate and cause green discoloration.
3. Store in a sealed container: Use airtight containers or sealed packaging to prevent prolonged exposure to air and reduce the impact of moisture and other impurities.
4. Prevent open exposure: A container left open for an extended period may cause water to evaporate, leading to the precipitation of solid silica particles and affecting product quality.
These conditions help maintain the stability of the silica sol and extend its effective shelf life.
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