Sodium Perborate vs. Percarbonate: Which Eco Bleach Wins?
Sodium perborate is a white, crystalline powder that releases hydrogen peroxide in hot water, while sodium percarbonate is a coated granule that dissolves in cold or warm water, releasing both peroxide and soda ash for gentler cleaning.
Shoppers reach for “oxygen bleach” tabs, see both names on shelf labels, and assume they’re interchangeable—until one leaves chalky residue on black jeans and the other erases coffee stains at 30 °C.
Key Differences
Sodium perborate activates only above 60 °C, making it ideal for dishwashers and hot-water laundry. Sodium percarbonate works from 30 °C, suits color-safe detergents, and dissolves fully, leaving no boron residue.
Which One Should You Choose?
Choose sodium percarbonate for eco-friendly cold washes and septic tanks; pick sodium perborate for industrial or dishwasher pods where high heat unlocks its full bleaching power.
Can I mix them in one wash?
Yes, but you’ll waste the percarbonate’s cold-water advantage; stick to one for best results.
Is either safe for septic systems?
Percarbonate is safer—perborate’s boron can accumulate in soil over time.