COMPOSITION DEGREE OF PURITY > 95% LOSS OF MONOMERS, OTHER REACTANTS, ADDITIVES, IMPURITIES Not expected to occur during normal usage. DEGRADATION PRODUCTS Thermal degradation will result in the formation of carbon monoxide and nitrogen oxides. PHYSICAL AND CHEMICAL PROPERTIES APPEARANCE AT 20ºC AND 101.3 kPa: Slightly viscous, yellowish liquid (Diaformer Z 632 N) The notified polymer is likely to be white solid (based on Analogue Polymer 1) Property Value Data Source/Justification Melting Point Glass transition temperature of notified polymer: 23oC Melting point of Diaformer Z 632 N: <-20 oC Density 910 kg/m3 at 20oC (Diaformer Z 632 N) Measured/MSDS MSDS Vapour Pressure < 1.3x10-9 kPa Estimated based on high molecular weight (> 1000 Da) (USEPA, 2007). Water Solubility 9.2 g/L at 20oC Measured Hydrolysis as a Function of pH Not determined. The notified polymer is expected to be hydrolytically stable. The notified polymer is not separated from the aqueous solvent in which it is manufactured. Partition Coefficient (n-octanol/water) Log Pow < -1 Estimated Adsorption/Desorption Not determined, but expected to be low based on the water solubility. The notified polymer is not separated from the aqueous solvent in which it is manufactured. Dissociation Constant pKa = 3.8 Measured Particle Size Not determined The notified polymer is imported in solvent. Flash Point Not determined Low vapour pressure solid. Flammability Not determined Not expected to be flammable and imported in solution. Autoignition Temperature Not determined Imported in solution. Not expected to undergo autoignition under normal conditions of use. Explosive Properties Not expected to be explosive Contains no groups with known explosive properties. DISCUSSION OF PROPERTIES
RESULTS Concentration mg/L Number of Fish Mortality Nominal Actual 1 h 24 h 48 h 72 h 96 h 0 0.9 (DOC) 7 0 0 0 0 0 100 31 (DOC) 7 0 0 0 0 0 LC50 > Water solubility at 96 hours. NOEC Water solubility at 96 hours. Remarks – Results All fish exhibited normal behaviour CONCLUSION The analogue polymer showed no toxicity to fish at the limit of water solubility. TEST FACILITY Noack Laboratorium (2002b) Acute toxicity to aquatic invertebrates TEST SUBSTANCE Notified polymer METHOD OECD TG 202 Daphnia sp. Acute Immobilisation Test and Reproduction Test - static. Species Daphnia magna Exposure Period 48 hours Auxiliary Solvent None Water Hardness 271 mg CaCO3/L Analytical Monitoring DOC Remarks - Method The mean DOC level was 55.9 mg/L at test initiation and 61.6 mg/L at termination. RESULTS Concentration mg/L Number of D. magna Number Immobilised Nominal Actual 24 h 48 h 0 20 0 0 100 58.8 (DOC) 20 0 0 LC50 > 100 mg/L at 48 hours NOEC 100 mg/L at 48 hours Remarks - Results The response (EC50 = 1.66 mg/L) to the reference substance potassium dichromate was within the prescribed range (0.6-2.1 mg/L). CONCLUSION The notified polymer is not harmful to daphnids TEST FACILITY Noack Laboratorien (2009a) Algal growth inhibition test TEST SUBSTANCE Notified polymer METHOD OECD TG 201 Alga, Growth Inhibition Test. Species Desmodesmus subspicatus Exposure Period 72 hours Concentration Range Nominal: 100 mg/L Auxiliary Solvent None Water Hardness Typical algal culture medium (soft water)