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1. Why does a presentation on GLDA focus on the detergents industry? 2. What is wrong with the traditional c

1. Why does a presentation on GLDA focus on the detergents industry? 2. What is wrong with the traditional chelating agents?. Questions. 2. 1. Why does a presentation on GLDA focus on the detergents industry? 2. What is wrong with the traditional chelating agents?.

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1. Why does a presentation on GLDA focus on the detergents industry? 2. What is wrong with the traditional c

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  1. 1. Why does a presentation on GLDA focus on the detergents industry?2. What is wrong with the traditional chelating agents? Questions 2

  2. 1. Why does a presentation on GLDA focus on the detergents industry?2. What is wrong with the traditional chelating agents? Traditional Chelates are > 80% used in detergents Questions 5

  3. Restrictions on EDTA & NTA in detergents • Use of EDTA is prohibited in some countries and is restricted in others in the EU due to its slow biodegradability in 30% of German surface water > 10 ppb EDTA • Use of NTA is restricted and poses a PR risk for the detergent producer due to the classification & labeling: 6

  4. Labeling of NTA • USA : carcinogenic category 2B • Hazard statement: Possibly carcinogenic to humans • EU: carcinogenic category 3 • Phrase (R40): Limited evidence of carcinogenic effects • Japan: under the new GHS (= global harmonized system): carcinogenic category 2 • Hazard statement: Suspected of causing cancer • also labeled with the mutagenic statement: May cause genetic defects • China plans tointroduce GHS in 2008 (copy/paste Japan?) 7

  5. Labeling of NTA • Japan: picture new GHS label: 8

  6. Restrictions in EU on NTA in detergents • UK: voluntary agreement not to use NTA in household detergents • France: prohibited by law to use in household detergents (in France) • Sweden: near elimination from household detergents (early 1990s) • Swiss: labeling for detergents >0.2% • Germany: no restrictions (seen as alternative for EDTA) • EU: detergent regulation (2004) enforces labeling when >0.2% NTA (will also control I&I detergents) • Green labels • Blauwe Engel (Germany): no NTA • Umweltzeichen (Austria): no NTA • Euroflower (EU): no NTA 9

  7. Restrictions in EU on EDTA in detergents • UK: voluntary agreement not to use EDTA in household detergents • France: voluntary agreement (1990) to reduce use in textile detergents • Sweden: near elimination from household detergents (early 1990s) • Swiss: labeling for detergents >0.2% • Germany: voluntary agreement (1991) to significantly reduce EDTA levels in the environment. • Germany and Austria: wastewater laws prohibit use of EDTA in wastewater of most industries • Swiss: max concentration EDTA fixed (<0.5 for textile, <1% for cleaners) and no EDTA for cleaning governmental/public buildings • EU: detergent regulation (2004) enforces labeling when >0.2% EDTA (will also control I&I detergents) • Green labels • Blauwe Engel (Germany): no EDTA • Umweltzeichen (Austria): no EDTA • Euroflower (EU): no EDTA 10

  8. Expectation for future use of NTA & EDTA in detergents The application of these traditional chelates will be increasingly difficult • Due to existing legislation • Due to future legislation / taxes • Due to further voluntary agreements • Due to environmentalism of society / consumers • Due to the more ‘green’ image that detergent producers intend • Due to good substitutes 11

  9. Further discussions leading to more changes in detergents • On eutrophication • In some countries phosphates are banned from laundry detergents • Now discussion on encouraging the detergents industry to develop Phosphate free ADW detergents (ban in Washington state, US as of 2008) • On environmental safety: advice scientific committee of EU Risks identified in EU • Phosphonates(not readily biodegradable, aqua tox of HEDP) • EDTA (not readily biodegradable) • NTA (carcinogen) • Polycarboxylates PAA (not readily biodegradable) All ingredients in detergents have to demonstrate to present: - no risk to people or the environment - 12

  10. Changes in detergent formulations will create opportunities for new chelates • A lot of the detergents in EU still needs to be de-phosphated • Traditional sequestering products are disputed • The EU detergent regulation (2004) also dictates labeling for NTA, EDTA, Phosphates and Phosphonates at > 0.2% Clear opportunity for new readilybiodegradable aminocarboxylates in household and I&I market 13

  11. Readily Biodegradable chelating agents AKZO NOBEL • Dissolvine® GL-38 (GLDA) • Dissolvine® EDG - 40 (HEIDA) Alternative for EDTA & NTA & Phosphates & Phosphonates in areas where these products need to be replaced: 14

  12. Some interesting properties of Dissolvine® GL • High solubility over wide pH range • Very good calcium sequestration at high pH • Good sequestering power over wide pH range • Largely made from sustainable raw materials • Suitable for Eco-labeling • Biodegradability • Good ecotox properties • High alkaline and acid stability • Good biocide boosting power • High Temperature stability • In liquid (GL-38) and solid (GL-PD) form, pH on request 18

  13. Solubility of GLDA at high & at low pH Conclusion: GLDA has excellent solubility ! 19

  14. Solubility of GLDA in caustic GLDA has excellent Solubility in caustic ! 20

  15. Some interesting properties of Dissolvine® GL • High solubility over wide pH range • Very good calcium sequestration at high pH & • Good sequestering power over wide pH range • Largely made from sustainable raw materials • Suitable for Eco-labeling • Biodegradability • Good ecotox properties • High alkaline and acid stability • Good biocide boosting power • High Temperature stability • In liquid (GL-38) and solid (GL-PD) form, pH on request 21

  16. Calcium Chelating value in functional test! Very High GLDA High Intermediate Conclusion: Ca binding efficiency even higher than expected Low 23

  17. Chelating power / active pH range: Superior Ca and Mg control 24

  18. Some interesting properties of Dissolvine® GL • High solubility over wide pH range • Very good calcium sequestration at high pH & • Good sequestering power over wide pH range • Largely made from sustainable raw materials • Suitable for Eco-labeling • Biodegradability • Good ecotox properties • High alkaline and acid stability • Good biocide boosting power • High Temperature stability • In liquid (GL-38) and solid (GL-PD) form, pH on request 25

  19. Green nature of Dissolvine® GL GLDA designed for eco-effectiveness • According to the Bra Miljöval protocol of the Swedish society for Nature Conservation GLDA is 86% based on natural, replaceable and sustainable raw materials 26

  20. Some interesting properties of Dissolvine® GL • High solubility over wide pH range • Very good calcium sequestration at high pH & • Good sequestering power over wide pH range • Largely made from sustainable raw materials • Suitable for Eco-labeling • Biodegradability • Good ecotox properties • High alkaline and acid stability • Good biocide boosting power • High Temperature stability • In liquid (GL-38) and solid (GL-PD) form, pH on request 27

  21. Biodegradation of Dissolvine® GL • Dissolvine GL = L-GLDA • L= Readily biodegradable in Closed bottle test (OECD 301D) • 100% degradation in Ultimate biodegradability test L D 28

  22. Eco-toxicity Dissolvine® GL Conclusion: GLDA safe for the environment • Low aquatic toxicity • Rainbow trout LC50 (96h) > 100 mg/l • Daphnia Magna EC50 (48h) > 100 mg/l • Green algae EC50 (72h) > 100 mg/l 29

  23. Toxicity Dissolvine® GL Conclusion: GLDA has no apparent safety issues • Low acute oral toxicity LD50 Oral (Rat): > 2000mg/kg • Not irritating to skin or eyes • Not a skin sensitizer (Guinea Pig) • Not Mutagenic for bacteria • Not Mutagenic for cells • Not genotoxic to micronucleus (mice) 30

  24. Some interesting properties of Dissolvine® GL • High solubility over wide pH range • Very good calcium sequestration at high pH & • Good sequestering power over wide pH range • Largely made from sustainable raw materials • Suitable for Eco-labeling • Biodegradability • Good ecotox properties • High alkaline and acid stability • Good biocide boosting power • High Temperature stability • In liquid (GL-38) and solid (GL-PD form, pH on request 31

  25. Readily biodegradable biocide formulation A positive effect of Dissolvine GL on biocide performance, particularly with Gram –ve bacteria has been shown. Formulation. Arquad MCB-50 15 % Dissolvine GL-38 15.4% Berol 175 3 % Water 100 % Dissolvine GL-38 is a good alternative for EDTA. GLDA more effective than EDTA and also more than NTA 32

  26. Some interesting properties of Dissolvine® GL • High solubility over wide pH range • Very good calcium sequestration at high pH & • Good sequestering power over wide pH range • Largely made from sustainable raw materials • Suitable for Eco-labeling • Biodegradability • Good ecotox properties • High alkaline and acid stability • Good biocide boosting power • In liquid (GL-38) and solid (GL-PD) form, pH on request • High Temperature stability (> 300C no significant decomp) 33

  27. Dissolvine® GL-PD product characteristics • White colored solid • Free flowing granular product • High concentration formulations • Same chemical functionality as the liquid product Warning: Hygroscopic (readily adsorbs water) 34

  28. Dissolvine® GL-PDParticle size distribution & bulk density 2.5 Particle Size Distribution 2.0 1.5 frequency q3*(x) / [0,1] 1.0 0.5 0 0.10 0.5 1 5 10 50 100 500 1000 particle size / µm Bulk Density: Poured: 566 kg/m3 Tapped: 695 kg/m3 Excellent flowability 35

  29. Dissolvine® GL-PDHygroscopic property measurements Dry Storage conditions required 36

  30. Some interesting properties of Dissolvine® GL • High solubility over wide pH range • Very good calcium sequestration at high pH & • Good sequestering power over wide pH range • Largely made from sustainable raw materials • Suitable for Eco-labeling • Biodegradability • Good ecotox properties • High alkaline and acid stability • Good biocide boosting power • In liquid (GL-38) and solid (GL-PD) form, pH on request • High Temperature stability (> 300C no significant decomp) 37

  31. Thermal stability (TGA / TSC results) • Ca. 9% water • Temp 100% water free product: 236°C • Temp 0.5% mass loss: 280°C • Temp 1% mass loss: 294°C • Decomposition > 325 °C • Conclusion: • Product is thermally stable • Even more stable when chelated to Ca and Mg ions. 38

  32. Stain removal in machine dishwashingtest performed Rhone Poulenc • Lab test with recipe containing 8 % NAOH and 40% builder GLDA superior to Phosphates and citrates on weight basis GLDA equal to NTA on molar basis 39

  33. Dissolvine® GL inindustrial cleaning (1) • Dairy cleaning • High alkaline stable formulations • Calcium phosphate removal at high pH • High temperature stable cleaning ( > 80 °C) • Modified natural amino acid • Cleaning in place (acid cleaning) • High water solubility at low pH (1 – 2) • Controlling effect of water hardness • Breweries • Calcium scale removal • Bottle washing • Mechanical Dish Washing • Excellent caustic solvability • good stain removal 40

  34. Dissolvine® GLIndustrial cleaning (2) • Truck cleaning • High concentration / High alkaline formulations • Soil removal is improved • Less issue around water discharge from units • Water treatment • Softens water • Reduces scale formation in water boilers • High temperature stability is an advantage over EDTA / organophosphonates • Metal surface cleaning • Alkaline formulations • Oil production unit cleaners • Care: Removal of aluminium at very high pH (no effect at neutral pH). 41

  35. Dissolvine® GLHousehold Cleaning applications • Shower cleaning products • Preventing scale formation • Used in combination with surfactants (wetting agents) • Dishwashing applications • Good calcium sequesterant at high pH • Good builder in phosphate free formulations • Prevents scale forming on surfaces • Good stain remover (e.g. tea) • Improves detergency effect of surfactants • Detergents • Stabilizes percarbonate in detergent formulations • Forms stable complexes with transition metal ions 42

  36. Dissolvine® GLPersonal care applications • Soaps • Reduces bad odors (Rancidity) • Improves color stability • Lowers amount of precipitation • Cosmetics • Improves shelf life of creams • Easily blends with surfactants and oils • INCI name listed • Tetra sodium glutamate diacetate 43

  37. Dissolvine® GL -Have a Greener Life- 44

  38. Detergent formulations with GLDA • Machine dishwashing (liquid, dilute up to 300x in use) • NaOH 8 % • Dissolvine® GL-38 40% • Water up to 100% • Machine dishwashing • improved formulation (liquid, dilute up to 300x in use) • NaOH 10% • Dissolvine® GL-38 40% • Surfactants 8% • Water up to 100% 49

  39. Detergent formulations with GLDA • Machine dishwashing (solid use 3-5 g/l) • Sodiumsilicate 50% • Dissolvine® GL-PD 35% • Percarbonate 8% • Surfactants 5% • Enzymes 2% • Traffic film remover (dilute up to 100x in use) • NaOH 1% • Dissolvine® GL-38 20% • Sodium metasilicate 5% • Surfactants 7% • Water up to 100% 50

  40. Detergent formulations with GLDA • Bottle washing (low foam, dilute up to 40x in use) • NaOH 20% • Dissolvine® GL-PD 9% • Surfactants 8% • Water up to 100% • Foam cleaner (biocidal, dilute up to 50x in use) • Amphionic SFB 25% • Aromox MCD-W 10% • Dissolvine® GL-38 7% • Sodium metasilicate 10% • NaOH 1% • Water up to 100% 51

  41. Dissolvine® GL -Embracing Sustainability- 61

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