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Physical & Chemical properties

Appearance / physical state / colour

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Reference
Endpoint:
appearance / physical state / colour
Type of information:
other: qualitative assessment
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study with acceptable restrictions
GLP compliance:
no
Physical state at 20°C and 1013 hPa:
liquid
Form:
paste
Colour:
brownish
Odour:
odourless
Substance type:
organic
Conclusions:
The substance is a deliquescent white solid odourless

Description of key information

The substance is a deliquescent white solid odourless

Key value for chemical safety assessment

Physical state at 20°C and 1013 hPa:
liquid

Additional information

Physical-Chemical testing was conducted by Slovnaft Vurup, a.s., Department of Testing Laboratories, in July and August 2010.

There are 5 aromatic sulphonic acids that were tested for physical-chemical properties in 2010. The appearance of those samples at 20C was:

Benzene sulphonic acid (CAS No. 98-11-3) - aqueous solution (ca 65%) as tested. Hygroscopic when dried.

Hydroxybenzene sulphonic acid (CAS No. 1333-39-7) - aqueous solution (ca 65%) as tested. Hygroscopic when dried.

Cumene sulphonic acid (CAS No. 37953-05-2) - aqueous solution (ca 65%) as tested. Hygroscopic when dried.

Xylene sulphonic acid (CAS No. 25321-41-9) - aqueous solution (ca 65%) as tested. Hygroscopic when dried.

Toluene sulphonic acid (CAS No. 104-15-4) - monohydrate crystal as tested. Hygroscopic when dried.