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Spotleak®, mercaptan blends for Natural Gas odorization

Product overview

Arkema has developed an odorant line called Spotleak®; a comprehensive range of mercaptan and sulfide blends to meet the odorant needs of gas distribution companies. Spotleak® products are specially designed for odorizing natural gas or industrial gases (e.g. O2 leakage detection to reduce operating costs due to those losses, and mitigate related safety concerns -- asphyxiation, flammability, etc)

Geographic availability
  • Worldwide

Chemical name: TertioButylMercaptan (TBM)

Chemical name: IsoPropylMercaptan (IPM)

Chemical name: TetraHydroThiophen (THT)

Chemical name: MethylEthylSulfide (MES)

Chemical name: DiMethylSulfide (DMS)

Common name: Mercaptan

Common name: Sulfide


CAS Number: 75-66-1

CAS Number: 75-18-3

CAS Number: 624-89-5

CAS Number: 107-03-9

Your one-stop shop for odorization

We produce and blend the odorant components in Arkema’s Lacq (France) and Rotterdam (Netherland) facilities, and we also have blending facilities in the United States, Brazil, and Argentina. This global distribution model allows Arkema to be close to our customers.

Spotleak® grades are available worldwide, and in an exhaustive range of packaging options from drums to iso-tanks.

We offer a comprehensive set of services directly to our customers, and cooperate with local partners to support all of your odorant needs.

Our Spotleak® grades



Spotleak® 1001

TertioButylMercaptan 80%
DiMethylSulfide 20%

Spotleak® 1005

TertioButylMercaptan 30%
TetraHydroThiophen 70%

Spotleak® 1007

TertioButylMercaptan 80%
MethylEthylSulfide 20%

Spotleak® 1009

TertioButylMercaptan 79%
IsoPropylMercaptann 18%
N-PropylMercaptan 3%



Spotleak® 1039

TertioButylMercaptan 50%
TetraHydroThiophen 50%

Spotleak® 1420

TertioButylMercaptan 75%
DiMethylSulfide 25%

Spotleak® 1450

TertioButylMercaptan 10%
IsoPropylMercaptann 70%
N-PropylMercaptan 10%
DiMethylSulfide 10%


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