No IUPAC name is currently defined for Cashew (Anacardium occidentale) Nutshell Extract, Decarboxylated, Distilled (“Distilled Grade”).

Vapour pressure

Link to relevant study record(s)

Reference

Endpoint:

vapour pressure

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

The study was conducted to Good Laboratory Practice.

Qualifier:

according to guideline

Guideline:

OECD Guideline 104 (Vapour Pressure Curve)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

effusion method: vapour pressure balance

Specific details on test material used for the study:

dark brown sligthly viscous liquid
storage conditions: room temperature in the dark

Temp.:

25 °C

Vapour pressure:

0 Pa

Transition / decomposition:

no

Table 1: Results from the first run

Temp. (°C)	Temp. (K)	Reciprocal temp. (K^-1)	Mass difference (µg)	Mass difference (kg)	Vapour pressure (Pa)	Log10Vp
90	363.15	0.002753683	38.47	3.847 x10^-8	0.053406216	-1.272408192
91	364.15	0.002746121	40.27	4.027 x10^-8	0.055905077	-1.252548749
92	365.15	0.002738601	44.03	4.403 x10^-8	0.061124920	-1.213781693
93	366.15	0.002731121	46.77	4.677 x10^-8	0.064928742	-1.187563009
94	367.15	0.002723682	49.44	4.944 x10^-8	0.068635386	-1.163451917
95	368.15	0.002716284	53.63	5.363 x10^-8	0.074452180	-1.128122582
96	369.15	0.002708926	57.96	5.796 x10^-8	0.080463329	-1.094402002
97	370.15	0.002701607	64.96	6.496 x10^-8	0.090181123	-1.044884362
98	371.15	0.002694328	69.14	6.914 x10^-8	0.095984034	-1.017801004
99	372.15	0.002687089	78.02	7.802 x10^-8	0.108311749	-0.965324433
100	373.15	0.002679887	85.89	8.589 x10^-8	0.119237325	-0.923587776

Table 2: Results from the second run

Temp. (°C)	Temp. (K)	Reciprocal temp. (K^-1)	Mass difference (µg)	Mass difference (kg)	Vapour pressure (Pa)	Log10Vp
90	363.15	0.002753683	37.82	3.782 x10^-8	0.052503849	-1.279808854
91	364.15	0.002746121	40.92	4.092 x10^-8	0.056807444	-1.245594754
92	365.15	0.002738601	43.45	4.345 x10^-8	0.060319732	-1.219540598
93	366.15	0.002731121	48.36	4.836 x10^-8	0.067136070	-1.173044087
94	367.15	0.002723682	51.75	5.175 x10^-8	0.071842258	-1.143620025
95	368.15	0.002716284	55.00	5.500 x10^-8	0.076354091	-1.117167689
96	369.15	0.002708926	60.99	6.099 x10^-8	0.084669746	-1.072271745
97	370.15	0.002701607	66.26	6.626 x10^-8	0.091985856	-1.036278947
98	371.15	0.002694328	73.48	7.348 x10^-8	0.102009065	-0.991361231
99	372.15	0.002687089	79.97	7.997 x10^-8	0.111018848	-0.954603283
100	373.15	0.002679887	87.62	8.762 x10^-8	0.121639008	-0.914927130

Table 3: Results from the third run

Temp. (°C)	Temp. (K)	Reciprocal temp. (K^-1)	Mass difference (µg)	Mass difference (kg)	Vapour pressure (Pa)	Log10Vp
91	364.15	0.002746121	41.28	4.128 x10^-8	0.057307216	-1.241790690
92	365.15	0.002738601	44.32	4.432 x10^-8	0.061527515	-1.210930627
93	366.15	0.002731121	47.85	4.785 x10^-8	0.066428059	-1.177648437
94	367.15	0.002723682	52.04	5.204 x10^-8	0.072244853	-1.141193091
95	368.15	0.002716284	56.80	5.680 x10^-8	0.078852952	-1.103182043
96	369.15	0.002708926	61.57	6.157 x10^-8	0.085474934	-1.068161225
97	370.15	0.002701607	68.64	6.864 x10^-8	0.095289905	-1.020953104
98	371.15	0.002694328	74.77	7.477 x10^-8	0.103799916	-0.983802998
99	372.15	0.002687089	82.50	8.250 x10^-8	0.114531136	-0.941076430
100	373.15	0.002679887	90.29	9.029 x10^-8	0.125345652	-0.901890726

Table 4: Results from the fourth run

Temp. (°C)	Temp. (K)	Reciprocal temp. (K^-1)	Mass difference (µg)	Mass difference (kg)	Vapour pressure (Pa)	Log10Vp
90	363.15	0.002753683	38.40	3.840 x10^-8	0.053309038	-1.273199154
91	364.15	0.002746121	41.72	4.172 x10^-8	0.057918049	-1.237186079
92	365.15	0.002738601	44.89	4.489 x10^-8	0.062318821	-1.205380773
93	366.15	0.002731121	49.15	4.915 x10^-8	0.068232792	-1.166006857
94	367.15	0.002723682	53.05	5.305 x10^-8	0.073646991	-1.132844990
95	368.15	0.002716284	58.97	5.897 x10^-8	0.081865468	-1.086899251
96	369.15	0.002708926	62.65	6.265 x10^-8	0.086974251	-1.060609303
97	370.15	0.002701607	69.65	6.965 x10^-8	0.096692044	-1.014609258
98	371.15	0.002694328	76.80	7.680 x10^-8	0.106618076	-0.972169159
99	372.15	0.002687089	84.95	8.495 x10^-8	0.117932364	-0.928366996
100	373.15	0.002679887	92.39	9.239 x10^-8	0.128260990	-0.891905412

Table 5: Results from the fifth run

Temp. (°C)	Temp. (K)	Reciprocal temp. (K^-1)	Mass difference (µg)	Mass difference (kg)	Vapour pressure (Pa)	Log10Vp
90	363.15	0.002753683	39.26	3.926 x10^-8	0.054502938	-1.263580083
91	364.15	0.002746121	42.51	4.251 x10^-8	0.059014771	-1.229039274
92	365.15	0.002738601	45.47	4.547 x10^-8	0.063124009	-1.199805425
93	366.15	0.002731121	47.71	4.771 x10^-8	0.066233703	-1.178920962
94	367.15	0.002723682	53.55	5.355 x10^-8	0.074341119	-1.128770904
95	368.15	0.002716284	58.68	5.868 x10^-8	0.081462874	-1.089040274
96	369.15	0.002708926	64.02	6.402 x10^-8	0.088876162	-1.051214709
97	370.15	0.002701607	70.15	7.015 x10^-8	0.097386172	-1.011502703
98	371.15	0.002694328	77.52	7.752 x10^-8	0.107617621	-0.968116615
99	372.15	0.002687089	83.87	8.387 x10^-8	0.116433047	-0.933923736
100	373.15	0.002679887	91.09	9.109 x10^-8	0.126456257	-0.898059677

Table 6: Summary of results

Run	Log10 [Vp (25°)]
1	-4.125
2	-4.259
3	-4.412
4	-4.399
5	-4.318
Mean	-4.303
Vapour pressure	5 x10^-5Pa

Conclusions:

The test material did not change in appearance under the conditions used in the determination. The vapour pressure of Cashew (Anacardium occidentale) Nutshell Extract, Decarboxylated, Distilled (Distilled Grade) was determined to be 0.00005 Pa at 25°C in an OECD Guideline 104 study, conducted under GLP conditions.

Executive summary:

The vapour pressure of Cashew nutshell liquid (measured using a distilled grade CNSL sample) was determined in an OECD 104 Vapour Pressure test. This study was conducted to Good Laboratory Practice.

The vapour pressure was determined using a vapour pressure balance system with measurements being made at several temperatures and a linear regression analysis analysis used to calculate the vapour pressure at 25°C. A sequence of runs was conducted after a sample of test material had been under vacuum for approximately 19.5 hours. Temperature and pressure readings were taken between 90 and 100°C with a one hour dwell at 90°C between runs.

The vapour pressure was determined to be 5 x10^-5 Pa at 25°C.

This study is classified acceptable and satisfies the guideline requirement for a vapour pressure study.

Description of key information

The test material did not change in appearance under the conditions used in the determination. The vapour pressure of Cashew (Anacardium occidentale) Nutshell Extract, Decarboxylated, Distilled (Distilled Grade)  was determined to be 0.00005 Pa at 25°C in an OECD Guideline 104 study, conducted under GLP conditions.

Key value for chemical safety assessment

Vapour pressure:

0 Pa

at the temperature of:

25 °C

Additional information

The vapour pressure of Cashew nutshell Extract, Decarboxylated, Distilled (Distilled Grade) was determined in an OECD 104 vapour pressure test. This study was conducted to Good Laboratory Practice. The vapour pressure was determined to be 0.00005 Pa at 25°C. This study is classified acceptable and satisfies the guideline requirement for a vapour pressure study.