I. The "stealth engine" of household CleaningChelating agents plays three key roles in household cleaning by forming a stable complex with metal ions such as calcium and magnesium:

Water softening: traps Ca ²/Mg ² ions and prevents the formation of soap scum, increasing surfactant efficiency by more than 30%. Stain removal enhancement: breaks down metal ions to bond stains (tea, coffee), detergents containing GLDA increase the removal rate of tough stains by 50%.

Formula stability: inhibits metal catalytic oxidation, doubling the shelf life of the product.

II. Top 3 green chelating agents: balance performance and Sustainability

1. Glutamic acid tetrasodium diacetate (GLDA)

Environmental Introduction: Derived from plant-based glutamic acid, 48% renewable carbon content, > 98% biodegradable within 28 days (OECD 301D). Main advantages: Chelation capacity: 45mg Ca ²/g, 63mg Fe ³/g; 90% activity retention at 20C.pH stability (2-12); 5% addition in dishwasher detergent achieves a perfect 5/5 cleaning fraction on glassware. Application: AkzoNobel's Diss ol vine ® GL range reduces skin irritation by 50% in European detergent brands and increases washing power by 40% in hard water areas.

2Methylglycinediacetate trisodium (MGDA)

Core Strengths: 80% biodegradable (OECD 301D), heat resistant (120C), ideal for high temperature cleaning. 3 times better than sodium citrate descaling; 45% concentration removes 30 cycles of scale in the kitchen degreasers.Market Adopted: BASF's Trilon ® M drives a 22% annual increase in dishwasher detergents, and the pre-wash formula effectively removes blood/milk stains.

3. Tetrasodium imidosuccinate (IDS)

Technical Highlights: 300mg CaCO/g chelating capacity; stable in the pH range of 2-12 (excellent case study: 3-8% added to laundry detergent, 85% fabric color retention after 50 washes.