### DISCLAIMER This reportis the property ofClariant. Its content is confidential and not for general release. Itis not allowed to cite and reveal the reportor its contentto a third partywithout priorwritten approval of Clariant. 

## REPORT Leuco SulfurBlack 1 Calculation ofthe Vapor Pressure
Data Requirements I 

### Test Guidelines:
StudyDirector: TestFacility:
Sponsor:
Study Identification: Version: Study Completion Date: EU Directive 92/69/EEC, A.4 OECD Guideline No. I04

MsMirjam Weissenfeld 

### HarlanLaboratories Ltd. Zelgliweg 1 4452 Itingen 

### I Switzerland


### ClariantProducts (Switzerland) Ltd. Rothausstrasse 

### 61 4132 Muttenz 1/Switzerland
Harlan Laboratories Study C30953
Final July 16, 2009 Page 1 of 11 

# 3tjS15f7 

# harlanTM 

# ...Harlan Laboratories Study C30953 Leuco Sulfur Black 1 

## CONTENTS Report Page2

CONTENTS ....................................................................................................................................2 SIGNATURES ................................................................................................................................ 3 PREFACE .......................................................................................................................................4 General Information...............................................................................................................4 Responsibilities......................................................................................................................4 Schedule.................................................................................................................................4 Data Requirements I Test Guidelines ....................................................................................4 Archiving ...............................................................................................................................5 1 SUMMARY...........................................................................................................................6 2 PURPOSE..............................................................................................................................7 3 MATERIALS AND METHODS........................................................................................... 8 3.1 Testltem.................................................................................................................. 8 3.2 Calculation Method ................................................................................................. 8 3.2.1 Principle.....................................................................................................8 3.2.2 Calculation ofthe VaporPressure.............................................................9 4 RESULTS AND DISCUSSION.......................................................................................... 10 5 REFERENCES .................................................................................................................... 11Harlan Laboratories Study C30953 Leuco Sulfur Black I 

## SIGNATURES

StudyDirector: Report Page3

Ms Mirjam WeissenfeldHarlan Laboratories Study C30953 Leuco Sulfur Black I 

## PREFACE General Information Test Item: Study Title: Sponsor: Study Monitor: Test Facility: 

### Responsibilities Study Director: Deputy Study Director: Reporting: 

### Schedule Study Completion Date: Report

Leuco Sulfur Black 1 Calculation ofthe Vapor Pressure Clariant Products (Switzerland) Ltd. Rothausstrasse 61 4132 Muttenz 1 I Switzerland DrBruno Kunz Harlan Laboratories Ltd. Zelgliweg 1 4452 Itingen I Switzerland

Ms Mirjam Weissenfeld Dr Jens Franke Ms Mirjam Weissenfeld
July 16, 2009 

### Data Requirements I Test Guidelines Page4

This study followed the procedures indicated by the following internationally accepted guidelines and recommendations: • EU Directive 92/69/EEC, Part A, Methods for the determination of physico-chemical properties, A.4 "Vapour Pressure", EEC Publication No. L383, December 1992. • OECD Guideline for Testing of Chemicals, Guideline No. 104, "Vapour Pressure", adopted July 27, 1995.Harlan Laboratories Study C30953 Leuco Sulfur Black 1 

### Archiving Report Page 5

Harlan Laboratories Ltd., 4452 Itingen/Switzerland will retain the raw data, a sample oftest item and the final report ofthe present study for at least ten years. No data will be discarded without the Sponsor's written consent.Harlan Laboratories Study C30953 Leuco Sulfur Black I 

## 1 SUMMARY Report

The vapor pressure ofLeuco Sulfur Black 1was estimated to be below 1.8 x 10-7 Pa at 25 °C Page6

based on the boiling point determined in study C30931 and using the Modified Watson Correlation.Harlan Laboratories Study C30953 Leuco Sulfur Black 1 

## 2 PURPOSE Report Page 7

The purpose ofthis study was to calculate the vapor pressure ofLeuco Sulfur Black 1 at 25 °C. The vapor pressure is a function of the temperature and is specified in Pascal (Pa) or in atmospheres (atm). One atmosphere equals 1.013 x 105 Pa.Harlan Laboratories Study C30953 Leuco Sulfur Black 1 Report Page 8 

## 3 MATERIALS AND METHODS 3.1 Test Item Data oftest item as supplied by the Sponsor. Identification: CAS No.: Description: Batch Number: Composition:

Stability ofthe test item: Expiry date: Storage Conditions: Safety Precautions: 

### 3.2 Calculation Method 3.2.1 Principle Leuco Sulfur Black 1 66241-11-0 Thixotrophic, black, wetpaste ESA0007595 Leuco Sulfur Black 1: 52.75% (calculated by amount ofby-compounds) 2,4-Dinitrochlorobenzene: < 20 ppm 2,4-Dinitrophenole: < 20 ppm Sulfate: 970 ppm Chloride: 750 ppm Sodium: 1.3% (w/w) Water: 45.75% (w/w) by Karl-Fischer titration Stable under storage conditions July 11, 2011 At room temperature (range 20 +/- 5°C), light protected Routine hygienic procedures will beused to ensure the health and safety ofthe personnel

Ifthe vapor pressure ofLeuco Sulfur Black 1 is expected to be so small that the value is below the measurement range of an experimental determination (e.g. the gas saturation method), then the vapor pressure can also be calculated, using the Modified Watson Correlation. This method is described byLyman et al. (1990). This method calculates the vaporpressure from the boilingpoint ofthe test item.Harlan Laboratories Study C30953 Leuco Sulfur Black 1 Report Page 9

3.2.2 Calculation ofthe Vapor Pressure Using the boiling point of Leuco Sulfur Black 1, the vapor pressure was calculated using the Modified Watson Correlation:

with: Where: Pvp Hvb Zb R Tb Tbp T m Kr H [ (3- 2 ·T ) m 

# l In(P ) = vb • 1- bp - 2 ·m ·(3- 2 ·T )m-l • In(T ) vp Z·R·T T bp bp b b bp Kr · (8.75 +R · InTb)
vaporpressure [atmospheres] Heat ofvaporization at the boiling point [cal/mol] Compressibility factor(= 0.97) Gas constant [1.987 cal/mol/K] Boiling point ofLeuco Sulfur Black 1=above 673 K T/Tb Temperature at which the vapor pressure is to be calculated [K] = 298 K Empirical factor depending on the physical state at T and depending on Tbp (here 1.19) Empirical factor considering the polarity ofthe test item (1.06)Harlan Laboratories Study C30953 Leuco SulfurBlack I Report 

## 4 RESULTS AND DISCUSSION Page 10

The estimation ofthe vapor pressure ofLeuco Sulfur Black 1 was based on the EEC directive 92/69, Part A, Methods for the determination of physico-chemical properties, A.4 "Vapour Pressure", EEC Publication No. L383, December 1992 and the OECD Guideline No. I04, "Vapour Pressure", adopted July 27, 1995. The boiling point ofLeuco Sulfur Black 1 was determined in study C30931. In this study the DSC showed an endothermic heat effect at 99.9°C. This temperature is not the true boiling point ofthe test item as it only reflects the boiling point ofthe water contained by the test item. The DSC shows no further endothermic heat effect up to 400°C. Thus, the boiling point ofthe Leuco SulfurBlack 1 can be regarded as being above 400°C. Based on this boilingpoint, the vapour pressure ofLeuco Sulfur Black 1was calculated being below 1.8 x 10-7 Pa at 25 

## oc based on the boilingpoint calculated and using the Modified Watson Correlation.Harlan Laboratories Study C30953 Leuco Sulfur Black 1 

## 5 REFERENCES Report Page 11

[1] W.J. Lyman, W.F. Reehl and D.H. Rosenblatt (ed.), Handbook of Chemical Property Estimation Methods, McGraw-Hill, NY (1990).

## CONTAINS NO CBI