Under strongly acidic or alkaline conditions, aspartame may generate methanol by hydrolysis. Dissolved in water, it is neither acidic nor alkaline. Nitromethane is a relatively acidic carbon acid. Alkali burns are typically worse than acidic burns. They withstand chemical erosion that occurs in other materials subjected to acidic or caustic environments. It occurs on dry, sandy, usually acidic soils. Sulfur dioxide is one of the few common acidic yet reducing gases. Aluminium is primary among the factors that reduce plant growth on acidic soils. It grows in open grasslands, wastelands, mainly on acidic or neutral soils. This applies particularly to acidic or nutrient-poor soils. Phosphonate esters are generally susceptible to hydrolysis under both acidic and basic conditions. It prefers good soil that is slightly acidic. The two pigments are highly acidic compounds. Douglas-fir prefers acidic or neutral soils. The pigment is sensitive to oxidative degradation under strongly acidic conditions.