Orange, sweet, ext.

Boiling point

Link to relevant study record(s)

Reference

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2010

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

comparable to guideline study with acceptable restrictions

Remarks:

Study according to methodology comparable to international guideline (OECD guideline 103, distillation method).

Reason / purpose for cross-reference:

reference to same study

Qualifier:

equivalent or similar to guideline

Guideline:

OECD Guideline 103 (Boiling point/boiling range)

Deviations:

no

Principles of method if other than guideline:

200 ml (168 4 g) of sample were heated by means of a hemispherical heating mantle at ambient pressure (1026 hPa). Bottom and head temperatures and amount of distillate were read and correlated to the distillation time to develop a distillation curve diagram. Correction to standard pressure (1013 hPa) was not done.

GLP compliance:

no

Type of method:

distillation method

Key result

Boiling pt.:

160 °C

Atm. press.:

1 026 hPa

Remarks on result:

other: Orange oil starts to boil at this temperature: +/- 10 degrees Celsius

Detailed results

Time (h)	Bottom Temperature (°C)	Head Temperature (°C)	Amount of Distillate (g)	Amount of Distillate (%)	Comments
00:00	20	20	0	0.0
00:04	35	19.5	0	0.0
00:09	85	19	0	0.0
00:14	125	19.5	0	0.0
00:19	153	20.5	0	0.0	Start of boiling
00:21	163	21.5	0	0.0
00:22	166	22	0	0.0
00:23	171	23	0	0.0
00:24	174	26	0	0.0
00:25	176	90	0	0.0
00:26	177	160	0.6	0.4
00:27	178	164	2.6	1.5
00:28		165	4.8	2.9
00:29		167.5	7.6	4.5
00:30		168	10.8	6.4
00:31		168	13.75	8.2
00:32		168	16.5	9.8
00:33	178	167.5	18.8	11.2
00:34	178	168	21.6	12.8

At ambient air pressure of 1026 hPa the following observations were made:

- The sample of orange oil cold pressed 1-fold started to boil at a bottom temperature of 153 °C.

- First distillate was obtained at 160 °C (head temperature).

- Head temperature reached a plateau at 168 °C.

- Bottom temperature reached a plateau at 178 °C

Conclusions:

Orange oil starts to boil at 160ºC.

Executive summary:

The start boiling point of orange oil was determined according to methodology comparable to OECD guideline 103 using the distillation method. Orange oil was found to start boiling at 160 +/- 10 ºC at 1026 hPa.

Description of key information

Orange oil starts to boil at 160ºC.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:

160 °C

Additional information

In a key study according to methodology comparable to OECD guideline 103 the boiling point of orange oil was determined using the distillation method. Orange oil was found to start boiling at 160 +/- 10 ºC at 1026 hPa.