Tetrahydro-4-methyl-2-(2-methylprop-1-enyl)pyran

Stability: thermal, sunlight, metals

Administrative data

Endpoint:

stability: thermal, sunlight, metals, other

Remarks:

Migrated from section 'Stability: thermal, sunlight, metals'

Type of information:

experimental study

Adequacy of study:

other information

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: GLP guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2012

Report date:

2012

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 113 (Screening Test for Thermal Stability and Stability in Air)

GLP compliance:

yes (incl. QA statement)

Test material

Test material information

Constituent 1

Reference substance name:

Reaction mass of (2S-cis)-tetrahydro-4-methyl-2-(2-methyl-1-propenyl)-2H-pyran and Tetrahydro-4-methyl-2-(2-methylpropen-1-yl)pyran (2R,4R) and Tetrahydro-4-methyl-2-(2-methylpropen-1-yl)pyran (2S,4S) and (2R-cis)-tetrahydro-4-methyl-2-(2-methyl-1-propenyl)-2H-pyran

EC Number:

939-429-1

Cas Number:

16409-43-1

Molecular formula:

C10H18O

IUPAC Name:

Reaction mass of (2S-cis)-tetrahydro-4-methyl-2-(2-methyl-1-propenyl)-2H-pyran and Tetrahydro-4-methyl-2-(2-methylpropen-1-yl)pyran (2R,4R) and Tetrahydro-4-methyl-2-(2-methylpropen-1-yl)pyran (2S,4S) and (2R-cis)-tetrahydro-4-methyl-2-(2-methyl-1-propenyl)-2H-pyran

Details on test material:

- Name of test material (as cited in study report): Rosenoxid 90
- Analytical purity: 99%
- Impurities (identity and concentrations): water 0.01 g/100g (by Karl Fischer titration)
- Isomers composition: 99.1 area% (2 stereoisomers with 91.6 and 7.5 area%) on a DB-1 column
99.0 area% (2 stereoisomers with 91.5 and 7.5 area%) on a DB-wax column
(values corrected for water content)
- Purity test date: February 22- 23, 2012
- Lot/batch No.: 40730216K0
- Storage condition of test material: ambient temperature

Results and discussion

For thermal stability study

Test substance thermally stable:

no

Operating temperature

Operating temp.:

30 - 500 °C

Remarks on result:

other: 1st reaction at onset temperature 115 °C, peak temperature 133 °C, energy release 10 J/g; 2nd reaction at onset temperature 415 °C, peak temperature 466 °C, energy release >170 J/g.

Any other information on results incl. tables

Test parameters
Apparatus:	Mettler TA 8000
Sample containers:	closed high pressure cell made of V4A
Sample weight:	18.4 mg
Reference material:	empty container
Heating rate:	2.5 °C/min
Temperature range:	from 30 °C to 500 °C
Results
1st reaction:
Onset temperature:	115 °C
Peak temperature:	133 °C
Energy release:	10 J/g
2nd reaction:
Onset temperature:	415 °C
Peak temperature:	466 °C
Energy release:	>170 J/g