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Toluene-4-sulfonic acid monohydrate, for analysis, ExpertQ®

- Synonyms: PTSA monohydrate, 4-Methylbenzenesulfonic acid, PASAM, p-Toluenesulfonic acid
- C7H8O3S·H2O
- M = 190,22 g/mol
- CAS [6192-52-5]
- EINECS-No.: 203-180-0
- Solub. in water: (20 ºC): ~ 750 g/l
- Melting point: 105 ºC (anhydrous substance)
- Flash pt. 180 ºC
- LD 50 (oral, rat): 2480 mg/kg (anhydrous substance)
- EC-Index-No.: 016-030-00-2
- ADR: 8 C4 III UN 2585
- IMDG: 8 III UN 2585
- IATA/ICAO: 8 III UN 2585
- GHS-signal word: Warning
- GHS-H sentences: H315 - H319 - H335
- GHS-P sentences: P261 - P280 - P305+P351+P338 - P321 - P405 - P501a
- Tariff number: 2904 10 00 90
- Applications: analytical chemistry, laboratory reagent, synthesis of organic products.

SPECIFICATIONS
assay (acidimetric, on dried sample): min. 99 %
identity (IR-spectrum): passes test
TLC test: passes test
sulfates (SO4): max. 0,3 %
heavy metals (as Pb): max. 0,001 %
iron (Fe): max. 0,01 %
residue on ignition: max. 0,1 %
water (K.F.): 9,0 - 13,0 %