Nitric acid, ammonium calcium salt

Flammability

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

15 April 2010- 06 July 2010

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.10 (Flammability (Solids))

Version / remarks:

2008

Deviations:

no

Qualifier:

according to guideline

Guideline:

UN Manual of Tests and Criteria: Test N.1 (Test method for readily combustible solids)

Version / remarks:

Rev 4 (2003)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Key result

Test procedure:

burning rate test: preliminary screening test

Remarks on result:

substance does not ignite and propagate combustion either by burning with flame or smouldering along 200 mm of the powder train within the 2 minutes test period

In contact with the flame of the gas burner, the test substance melted. After removal of the ignition source, no propagation of combustion of the test substance was observed.

Interpretation of results:

not classified based on GHS criteria

Conclusions:

CN-Nitcal was determined to be 'not highly flammable' by ignition in a GLP-compliant study performed in accordance with UN Test N.1 and EC.A10.

Reference 2

Endpoint:

substances / mixtures which in contact with water emit flammable gases

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

the study does not need to be conducted because the substance is known to be soluble in water to form a stable mixture

Justification for type of information:

JUSTIFICATION FOR DATA WAIVING
-The chemical structure of the (inorganic) substance does not contain metals or metalloids.
-An expert statement based on composition and structural features has been issued in which it was concluded that the substance is 'not highly flammable' in contact with water.

Reason / purpose for cross-reference:

data waiving: supporting information

Reference 3

Endpoint:

pyrophoric solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

15 April 2010- 06 July 2010

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.13 (Pyrophoric Properties of Solids and Liquids)

Deviations:

no

Qualifier:

according to guideline

Guideline:

UN Manual of Tests and Criteria: Test N.2 (Test method for pyrophoric solids)

Version / remarks:

Rev.4

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Specific details on test material used for the study:

Relative density: 2.05
 

Key result

Test procedure:

ignition time on contact with air

Remarks on result:

no ignition within 5 minutes

Interpretation of results:

not classified based on GHS criteria

Conclusions:

Based on EC A.13 and UN Test N.2 test result, it was concluded that CN-Nitcal has no pyrophoric properties.

Reference 4

Endpoint:

self-heating substances / mixtures

Type of information:

experimental study

Adequacy of study:

key study

Study period:

15 April 2010- 06 July 2010

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

UN Manual of Tests and Criteria: Test N.4 (Test method for self-heating substances)

Version / remarks:

Rev 4 (2003)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Remarks:

dd 30 March 2009

Key result

Test procedure:

100 mm sample cube at 140°C

Max. temp. reached:

140

Induction time (h):

24

Result:

negative outcome (no effect observed)

No exothermic effect was recorded. After the experiment, a colourless liquid was collected in the container that was placed below the cube and white granules/paste was in the cube. It indicated that the test substance had decomposed and/or reacted during the experiment.

Interpretation of results:

not classified based on GHS criteria

Conclusions:

The substance was determined to be not self-heating in a GLP-compliant study performed in accordance with UN Test N.4.

Description of key information

Not highly flammable (EC A.10 and UN Test N.1: preliminary screening test)

No pyrophoric properties (UN Test N.2).

Not highly flammable in contact with water (based on composition, water solubility and structural features).

Not self-heating (UN Test N.4)

Key value for chemical safety assessment

Flammability:

non flammable

Justification for classification or non-classification

-As not readily combustible in the UN N.1 test, no classification is required for the CLP hazard 'Flammable solid'.

-Based on UN Test N.2 result, no classification is required for the CLP hazard 'Pyrophoric solids'.

-No classification is required for the CLP hazard 'Substances which in contact with water emits flammable gases'.

-Based on UN Test N.4 result, no classification for the CLP hazard 'Self-heating substances'.