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 chelating agents?

• Questions

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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

Traditional Chelates are gt 80 used in detergents
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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 gt 10 ppb EDTA
• Use of NTA is restricted and poses a PR risk for
  the detergent producer due to the classification
  labeling

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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 to introduce GHS in 2008 (copy/paste
  Japan?)

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Labeling of NTA

• Japan picture new GHS label

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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 gt0.2
• Germany no restrictions (seen as alternative for
  EDTA)
• EU detergent regulation (2004) enforces labeling
  when gt0.2 NTA
• (will
  also control II detergents)
• Green labels
• Blauwe Engel (Germany) no NTA
• Umweltzeichen (Austria) no NTA
• Euroflower (EU) no NTA

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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 gt0.2
• 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 (lt0.5 for
  textile, lt1 for cleaners) and no EDTA for
  cleaning governmental/public buildings
• EU detergent regulation (2004) enforces labeling
  when gt0.2 EDTA
• (will
  also control II detergents)
• Green labels
• Blauwe Engel (Germany) no EDTA
• Umweltzeichen (Austria) no EDTA
• Euroflower (EU) no EDTA

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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

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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 -
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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 gt 0.2
• Clear opportunity for new readily
  biodegradable
• aminocarboxylates in household and
  II market

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Readily Biodegradable chelating agents AKZO NOBEL
Alternative for EDTA NTA Phosphates
Phosphonates in areas where these products
need to be replaced

• Dissolvine GL-38 (GLDA)
• Dissolvine EDG - 40 (HEIDA)

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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

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Solubility of GLDA at high at low pH
Conclusion GLDA has excellent solubility !
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Solubility of GLDA in caustic
GLDA has excellent Solubility in caustic !
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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

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Calcium Chelating value in functional test!
Very High
GLDA
High
Intermediate
Conclusion Ca binding efficiency even higher
than expected
Low
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Chelating power / active pH range Superior Ca
and Mg control
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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

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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

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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

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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
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Eco-toxicity Dissolvine GL

• Low aquatic toxicity
• Rainbow trout LC50 (96h) gt 100 mg/l
• Daphnia Magna EC50 (48h) gt 100 mg/l
• Green algae EC50 (72h) gt 100 mg/l

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Toxicity Dissolvine GL

• Low acute oral toxicity LD50 Oral (Rat) gt
  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)

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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

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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
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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 (gt 300C no significant
  decomp)

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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)
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Dissolvine GL-PDParticle size distribution
bulk density
Particle Distribution () Particle size (nm)
10 68
50 142
90 240
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
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Dissolvine GL-PDHygroscopic property
measurements
Dry Storage conditions required
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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 (gt 300C no significant
  decomp)

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Thermal stability (TGA / TSC results)

• Ca. 9 water
• Temp 100 water free product 236C
• Temp 0.5 mass loss 280C
• Temp 1 mass loss 294C
• Decomposition gt 325 C

• Conclusion
• Product is thermally stable
• Even more stable when chelated to Ca and Mg
  ions.

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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
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Dissolvine GL inindustrial cleaning (1)

• Dairy cleaning
• High alkaline stable formulations
• Calcium phosphate removal at high pH
• High temperature stable cleaning ( gt 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

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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).

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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

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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

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Dissolvine GL -Have a Greener Life-
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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

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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

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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

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Dissolvine GL -Embracing Sustainability-
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