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

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Presentation on theme: "1. Why does a presentation on GLDA focus on the detergents industry? 2. What is wrong with the traditional chelating agents? Questions 2."— Presentation transcript:

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? Questions Traditional Chelates are > 80% used in detergents 5

3 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: Restrictions on EDTA & NTA in detergents 6

4 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 to introduce GHS in 2008 (copy/paste Japan?) Labeling of NTA 7

5 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 1.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) 2.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 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 readily biodegradable aminocarboxylates in household and I&I market Changes in detergent formulations will create opportunities for new chelates 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 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 Some interesting properties of Dissolvine ® GL 21

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

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

18 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 Some interesting properties of Dissolvine ® GL 25

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

20 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 Some interesting properties of Dissolvine ® GL 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 D L 28

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

23 Toxicity Dissolvine ® GL Low acute oral toxicity LD 50 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) Conclusion: GLDA has no apparent safety issues 30

24 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 Some interesting properties of Dissolvine ® GL 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 % Dissolvine GL % Berol % Water 100 % Dissolvine GL-38 is a good alternative for EDTA. GLDA more effective than EDTA and also more than NTA 32

26 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) Some interesting properties of Dissolvine ® GL 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-PD Particle size distribution & bulk density Particle Distribution (%) Particle size (nm) Bulk Density: Poured: 566 kg/m3 Tapped: 695 kg/m3 Excellent flowability frequency q3*(x) / [0,1] particle size / µm Particle Size Distribution 35

29 Dissolvine ® GL-PD Hygroscopic property measurements Dry Storage conditions required 36

30 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) Some interesting properties of Dissolvine ® GL 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 dishwashing test 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 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 Dissolvine ® GL in industrial cleaning (1) 40

34 Dissolvine ® GL Industrial 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 ® GL Household 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 ® GL Personal 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) NaOH10% Dissolvine ® GL-3840% Surfactants 8% Water up to 100% 49

39 Detergent formulations with GLDA Machine dishwashing (solid use 3-5 g/l) Sodiumsilicate50% Dissolvine ® GL-PD35% 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) NaOH20% Dissolvine ® GL-PD 9% Surfactants 8% Water up to 100% Foam cleaner (biocidal, dilute up to 50x in use) Amphionic SFB 25% Aromox MCD-W10% Dissolvine ® GL-38 7% Sodium metasilicate10% NaOH 1% Water up to 100% 51

41 Dissolvine ® GL - Embracing Sustainability- 61


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