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EC number: 235-252-2
CAS number: 12141-20-7
Highly flammable (test results, EU A.10 and ADR 184.108.40.206.8 methods) -
equivalent to Cat. 1 Flam. Solid (H228) under CLP. In the test according
to ADR, the burning was not stopped by a moistened zone. The burning
rate was between 2.4 and 3 mm/s.
Waiving for flammability in contact with water and pyrophoricity.
Classified as highly flammable, based on test results (EU A.10 and ADR
220.127.116.11.8 methods). In the test according to ADR, the burning was not
stopped by a moistened zone. The burning rate was between 2.4 and 3
mm/s. In accordance with the classification criteria laid down in
regulation (EC) No 1272/2008, dibasic lead phosphite required
classification as a flammable solid category 1. Note
that this is a self-classification which is in addition to the existing
EU harmonised classification (which is based on a group entry). The
studies considered for this self-classification of dibasic lead
phosphite were not yet available at the time of adoption of the EU
Whereas the need for
classification is given based on "flammability in contact with a flame"
(A.10 study), dibasic lead phosphite does not exhibit pyrophoric
properties. In several decades of production, marketing and downstream
use, none of the lead compounds have ever been reported to exhibit such
properties. Furthermore, based upon a statement on the pyrophoric
properties of the European Lead Stabiliser Association (ELSA, 2004)
experimental handling over the last 50 years revealed no such properties
for dibasic lead phosphite.
Dibasic lead phosphite also does not contain groups that might lead to a
reaction with water or damp air, leading to the development of dangerous
amounts of gas or gases which may be highly flammable. Furthermore,
experience in practical handling of the substance shows that it does not
react with water, and recent experimental testing for water solubility
has not reported formation of any gas or gases whatsoever in any of the
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