Boric acid

Flammability

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

pyrophoric solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2010-06-07

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Qualifier:

according to guideline

Guideline:

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

GLP compliance:

yes

Test procedure:

ignition time on contact with air

Remarks on result:

no ignition on contact with air (not further specified)

It has been determined that the test substance was not classified as a pyrophoric solid of class 4.2.

Runs	Ignition/No ignition	Observations
1	No ignition	No reaction
2	No ignition	No reaction
3	No ignition	No reaction
4	No ignition	No reaction
5	No ignition	No reaction
6	No ignition	No reaction

Interpretation of results:

other: not classified based on EU GHS criteria

Conclusions:

It has been determined that the test substance was not classified as a pyrophoric solid according to UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria for substances of Class 4, Division 4.2.

Executive summary:

The pyrophoric properties of the test item was assessed in a GLP-conform study according to UN Manual of Tests and Criteria: Test N.2. No observations was made that leads to a classification.

Reference 2

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2010-06-02

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Qualifier:

according to guideline

Guideline:

EU Method A.10 (Flammability (Solids))

Deviations:

not specified

Qualifier:

according to guideline

Guideline:

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

Deviations:

not specified

Qualifier:

according to guideline

Guideline:

other: HSE Code of Physico-Chemical Properties 1982

Deviations:

not specified

GLP compliance:

yes

Test procedure:

burning rate test over 100 mm length

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 the preliminary test the sample did not ignite and therefore no further testing was required. Initially the sample melted to a clear paste, boiled and glowed red while in contact with the ignition source. No propagation of the reaction was observed.

Interpretation of results:

other: EU GHS criteria not met

Conclusions:

It was determined that the test substance should be classified as "not a highly flammable solid".

Executive summary:

The test item was assessed for its flammability-properties in a GLP-conform study according to EU method A.10, UN Manual of Tests and Criteria: Test N.1 (Test method for readily combustible solids) and HSE Code of Physico-Chemical properties 1982. The sample did not ignite. Initially the sample melted to a clear paste, boiled and glowed red while in contact with the ignition source. No propagation of the reaction was observed.

Description of key information

Flammability:

The test item was assessed for its flammability-properties in a GLP-conform study according to EU method A.10, UN Manual of Tests and Criteria: Test N.1 (Test method for readily combustible solids) and HSE Code of Physico-Chemical properties 1982. The sample did not ignite. Initially the sample melted to a clear paste, boiled and glowed red while in contact with the ignition source. No propagation of the reaction was observed.

Pyrophoricity:

The pyrophoric properties of the test item was assessed in a GLP-conform study according to UN Manual of Tests and Criteria: Test N.2. No observations was made that leads to a classification.

Key value for chemical safety assessment

Flammability:

non flammable