Triethoxy(2,4,4-trimethylpentyl)silane

Auto flammability

Link to relevant study record(s)

Reference

Endpoint:

auto-ignition temperature (liquids)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2015-07-30 to 2015-08-07

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

guideline study with acceptable restrictions

Remarks:

The study was conducted according to a relevant test method and in accordance with a recognised quality system

Qualifier:

according to guideline

Guideline:

DIN EN 14522, Method S (Determination of the auto ignition temperature of gases and vapours)

GLP compliance:

no

Other quality assurance:

other: ISO 9001:2008

Key result

Auto-ignition temperature:

251 °C

Atm. press.:

ca. 964 - ca. 967 hPa

Remarks on result:

other:

The auto-ignition temperature results are shown below:

Table 1: Preliminary test

No.	Test temperature [°C]	Number of sample [drops]	Result concerning ignition [negative(-) / positive(+)]	Atmospheric pressure [hPa]
1	215.6	5	-	964
2	234.3	5	-
3	256.3	5	-
4	279.4	5	-
5	301.9	5	-
6	328.2	5	-
7	330.9	5	+
Lowest test temperature				330.9°C

 

Table 2: Test series 1

No.	Test temperature [°C]	Number of sample [drops]	Result concerning ignition [negative(-) / positive(+)]	Atmospheric pressure [hPa]
1	285.0	10	+	964
2	280.0	10	+
3	275.0	10	+
4	270.0	10	+
5	265.0	10	+
6	260.0	10	+
7	255.0	10	-
8	255.0	6	-
9	255.0	2	-
10	255.0	14	-
11	255.0	18	-
12	258.0	10	-	966
13	258.0	6	-
14	258.0	2	-
15	258.0	14	+
16	256.0	14	-
17	256.0	10	-
18	256.0	6	-
19	256.0	2	-
20	256.0	18	-
Lowest test temperature				258°C

 

Table 3: Test series 2

No.	Test temperature [°C]	Number of sample [drops]	Result concerning ignition [negative(-) / positive(+)]	Atmospheric pressure [hPa]
1	265.0	14	+	967
2	260.0	14	-
3	260.0	10	+
4	255.0	10	-
5	255.0	6	-
6	255.0	2	-
7	255.0	14	-
8	255.0	18	-
9	258.0	10	-
10	258.0	6	-
11	258.0	2	-
12	258.0	14	-
13	258.0	18	-
14	256.0	18	-
15	256.0	14	-
16	256.0	10	-
17	256.0	6	-
18	256.0	2	-
Lowest test temperature				258°C

 

Table 4: Test series 3

No.	Test temperature [°C]	Number of sample [drops]	Result concerning ignition [negative(-) / positive(+)]	Atmospheric pressure [hPa]
1	265.0	18	+	966
2	260.0	18	+
3	255.0	18	-
4	255.0	14	-
5	255.0	10	+
6	250.0	10	-
7	250.0	6	-
8	250.0	2	-
9	250.0	14	-
10	250.0	18	-
11	253.0	10	-
12	253.0	6	-
13	253.0	2	-
14	253.0	14	-
15	253.0	18	-
Lowest test temperature:				255°C

 

Table 5: summary of results

Parameter	Value
Lowest value of test series 1:	258°C
Lowest value of test series 2:	258°C
Lowest value of test series 3:	255°C
Lowest value of all test series:	255°C
Absolute deviation of the lowest value (1.5%):	3.8°C
Auto-ignition temperature:	251°C

 

According to DIN EN 14522 the lowest value of all test series (255°C) was reduced by the deviation value based on the precision of the method (rel. 1.5% = 3.8°C). The resulting value was rounded to the next integral number (251°C).

Conclusions:

An auto-ignition temperature value of 251°C at 964-967 hPa was determined for the substance using a relevant test method. The result is considered to be reliable.

Description of key information

Auto-ignition temperature: 251°C at 964-967 hPa (DIN 14522)

Additional information

An auto-ignition temperature value of 251°C at 964 -967 hPa was determined for the substance using a relevant test method and in compliance with a known quality system (ISO 9001:2008). The result is considered to be reliable and is selected as key study. The key study is supported by another auto-ignition temperature value of 250°C which was determined for the substance using a relevant test method.