Sodium Stearate Solubility in Water

Based on the product information, Sodium Stearate is soluble in water, and the recommended usage rate is between 1% and 30%.

However, at concentrations like 7%, Sodium Stearate typically forms a cloudy or gel-like dispersion in water, especially as the solution cools. It does not usually create a perfectly clear, transparent solution. This is because Sodium Stearate is a surfactant and thickener; it disperses in water to build texture rather than dissolving into a clear liquid like a simple salt.

The cloudiness you are observing at 7% is normal behavior for Sodium Stearate and is expected when using it within its functional concentration range.