substance

p-Toluenesulfonyl chloride

No ChEBI entry found (EBI OLS search by name and InChIKey, 2026-11-05).

Formula: C7H7ClO2S
CAS: 98-59-9
InChIKey: YYROPELSRYBVMQ-UHFFFAOYSA-N

Show in the process graph →

Made by

p-Toluenesulfonyl chloride by semi-batch chlorosulfonation of toluene with a drown-out quench (1000 t/a)Main productConcept · not reviewed

Used by

No process in the Atlas uses this yet.

When a process with this chemical is added to the library, it appears here.

Takes part in

C₇H₇ClO₂S+H₂OgivesC₇H₈O₃S+HClReactant · Hydrolysis of p-toluenesulfonyl chloride in the quench (yield loss) · one process
C₇H₈O₃S+ClHO₃SgivesC₇H₇ClO₂S+H₂SO₄Product · p-Toluenesulfonic acid to p-toluenesulfonyl chloride by excess chlorosulfonic acid · one process

Routes compared

One route in the Atlas makes p-Toluenesulfonyl chloride: nothing to compare yet. A comparison appears when a second route is added.

Per 1 kg of p-Toluenesulfonyl chloride: inventory from each route's LCI dataset, unallocated; footprints per the functional unit of their own LCA.

Route	Tier, design maturity, review status	Geography, year	Energy	Feedstocks	Key emissions	Footprint	Comparability
p-Toluenesulfonyl chloride by semi-batch chlorosulfonation of toluene with a drown-out quench (1000 t/a)Batch plant: ammonium chloride and then toluene dosed into chlorosulfonic acid at 338 K (semi-batch, HCl vented as it forms), a second acid portion at 308 K, the mass dosed into a water heel at 288 K (drown-out quench, semi-batch), p-TsCl precipitated, filtered, reslurry-washed twice with ice water and vacuum-dried at 308 K; the HCl neutralised in a caustic scrubber; 1748.95 kg per batch, 571.8 batches a year on a dedicated train	flowsheet or hand-writtenDesign maturity: Concept (research)Not independently reviewedDataset review: unreviewed	GLO, 2026	Electric power: 0.193 kWh LP steam 350 kPa(a) (R-101 heating, the dryer's hot-water circuit): 0.34 kWh	Chlorosulfonic acid (merchant): 2.32 kg Ammonium chloride (merchant): 0.16 kg Toluene (btx-1): 0.612 kg Process water (quench heel, scrubber make-up): 8.64 kg Process water for the cake washes (chilled in T-101): 4.03 kg Caustic soda 50 wt% (chlor-alkali-1): 0.871 kg Nitrogen for inerting R-101, pressing the Nutsche filtrations and breaking the dryer's vacuum: 0.1 kg Rinse water of Q-101 and F-101 between batches: 1.14 kg	none	no footprint	–

ISO 14044 requires a critical review (by a panel of interested parties, ISO/TS 14071) of a comparative assertion intended to be disclosed to the public. These routes are listed side by side for screening; a statement that one is better than another needs that review. None of these routes has had such a review.