Deterioration
Deterioration means the gradual decline or worsening in quality, condition, or value of something over time.
Stannous chloride
Stannous chloride is a chemical compound of tin and chlorine with the formula SnCl₂ (tin(II) chloride
Water retention
Water retention is the capacity of a material or system to hold water against loss.
Or
Water retention means the ability of a substance (like soil, body tissues, or materials) to hold or retain water within it instead of letting it drain away