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The request of modern fire fighting foams - between performance and responibility - Fabrik chemischer Präparate von Dr. Richard Sthamer GmbH & Co. KG Liebigstr.

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Presentation on theme: "The request of modern fire fighting foams - between performance and responibility - Fabrik chemischer Präparate von Dr. Richard Sthamer GmbH & Co. KG Liebigstr."— Presentation transcript:

1 The request of modern fire fighting foams - between performance and responibility - Fabrik chemischer Präparate von Dr. Richard Sthamer GmbH & Co. KG Liebigstr. 5 22113 Hamburg Dr. Rosvita Milo-Rieks

2 Fabrik chemischer Präparate von Dr. Richard Sthamer GmbH & Co. KG Overview - Foam Concentrates D r. S THAMER ProteinSynthetic - Foammousse - Fluor-Foamousse - Foammousse - Foammuosse P FP FFFP-AR FFFP - Sthamex - - Moussol APS - Moussol APS-LV Class-A AFFF AFFF/AR

3 Why AFFF/FFFP-Foam Concentrate ? Fabrik chemischer Präparate von Dr. Richard Sthamer GmbH & Co. KG AFFF- and FFFP-Foam Concentrates Fastest and most effective way for extinguishing big fires of hydrocarbons Safety for Fire Fighters Protection of life and property

4 Foam Application Fabrik chemischer Präparate von Dr. Richard Sthamer GmbH & Co. KG - MBS: Extinguishing performance class IIIC - AFFF/FFFP: Extinguishing performance class IB - Extinguishing time and burnback better with AFFF/FFFP - DIN 14493-100: Factors (>60% more) Type of foamPerformance classFactor AFFFI0,75 FFFPI0,75 FPII1,00 ProteinIII1,25 Class AIII1,25

5 Properties of the Aqueous Film Fabrik chemischer Präparate von Dr. Richard Sthamer GmbH & Co. KG The aqueous film is responsible for the following effects, which promote a fast and safe extinguishing: - cooling of solids and liquids - fast spreading of the foam blanket - stable barrier against evaporation of hydrocarbons - self-healing of the aqueous layer, if disrupted

6 Use of Perfluorinated Chemicals Fabrik chemischer Präparate von Dr. Richard Sthamer GmbH & Co. KG

7 PFOS PFOA Fabrik chemischer Präparate von Dr. Richard Sthamer GmbH & Co. KG PBT chemical: P ersistent Half life of up to 2000 years in the nature B ioaccumulating Accumulates in proteins Half life 3-7 years in human body T oxic Hepartotoxic (liver), teratogen EPA: current situation not an imminent health risk BT only with high dosage EU EU: PFOS-based foam agents removed until June 27, 2011 PT chemical: P ersistent Half life of up to 2000 years in the nature T oxic Hepartotoxic (liver), teratogen AFFF -Foam concentrates from Dr. Sthamer contains PFOA only in trace levels. BT only with high dosage

8 Structure PFOA/PFOS Fabrik chemischer Präparate von Dr. Richard Sthamer GmbH & Co. KG F S N H N FF FF FF FF FF FF OO O O H 3 CCH 3 F S N H N FF FF FF FF FF FF OO O H 3 CCH 3 F S O FF FF FF FF FF FF OOFF FF Perfluoralkyl Spacer Polar PFOA PFOS

9 Foam Concentrate Producers Fabrik chemischer Präparate von Dr. Richard Sthamer GmbH & Co. KG Producers of AFFF- and FFFP-foam concentrates : Replacement of PFOS-based fluorosurfactants by telomer-based fluorosurfactants, if not already used Advantage of telomer based Fluorosurfactants: Fluorine part approximately 30-60% smaller than with PFOS without changing the performance no PFOS during the production, as reaction aid, as by-product or waste

10 momentarily, there is no substitute for fluorosurfactants and there wont be a substitute in the near future AFFF and FFFP will further be produced, as there is no substitute But telomer fluorosurfactants are also persistent: Looking for substitutes for fluorosurfactants Looking for readily bio-degradable fluorosurfactants Reducing the amount of fluorosurfactants, but without reducing the safety of the products AFFF/FFFP and the Future Fabrik chemischer Präparate von Dr. Richard Sthamer GmbH & Co. KG

11 Thank you for your attention End Fabrik chemischer Präparate von Dr. Richard Sthamer GmbH & Co. KG


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