Tetrahydrothiophene (THT) is a mainstream odorant for domestic natural gas, coalbed methane, and LNG gasification and distribution systems. The superior grade has a purity of >99%. The product strictly adheres to the domestic gas odorant standard GB/T 1892 and meets the international gas odorant technical specification ISO 13734. It is widely used in municipal gas pipeline networks, industrial gas supply stations, LNG storage and distribution, and long-distance pipeline projects. This product has a stable chemical structure, excellent compatibility with various gas pipe materials and seals, low gas phase transmission loss, and high odor identification. Its overall performance is superior to traditional mercaptan odorants. It is packaged in 50 kg/drum, 200 kg/drum, 1000 kg/ton tanks, SBC ton tanks, and ISO tanks, corresponding to the UN Dangerous Goods Number UN2412, fully complying with the requirements for hazardous chemical storage and transportation. The factory maintains a large inventory for stable bulk supply.

1. Basic Parameters (Industrial Grade / Premium Grade)

Appearance: Colorless transparent liquid with a strong characteristic odor (detectable at 0.01ppm)

Purity: ≥99% (commonly 99.5%/99.6%)

Boiling Point: 119℃; Melting Point: -96.2℃; Flash Point: 12℃

Solubility: Insoluble in water, miscible with ethanol, ether, benzene, and acetone

Packaging: 200kg/drum (standard), customizable to 5kg/10kg/50kg/1000kg IBC

Origin: Domestic / Imported (Phillips)

Hazardous Chemical Classification: Class 3 Flammable Liquid (Class 3.2); UN2412; Hazard Code 32111

2. Core Uses

✅ Gas Odor Addition (Main Use): Adding to natural gas, LNG, LPG, and town gas; leak warning; mandatory safety addition (National Standard 20–50mg/m³)

✅ Organic Synthesis Intermediates: Raw materials for pharmaceuticals, pesticides, dyes, and polymer auxiliaries

✅ Specialty Solvents / Catalyst Ligands: Used in fine chemical and scientific research synthesis

3. Product Advantages (Compared to Ethyl mercaptan)

High Stability: Not easily decomposed, does not corrode pipes, and provides long-lasting odor control.

Stable Odor: Highly identifiable and not easily masked by impurities.

Environmentally Friendly and Low Toxicity: Cleaner combustion products, a mainstream replacement for ethyl mercaptan.

Compliant and Universal: Meets national standards and international gas regulations, globally applicable.

4. Qualifications and Guarantees
Complete MSDS, COA, Hazardous Chemical Certificate, UN Packaging Certificate, and Customs Registration

Factory Direct Supply / Long-Term Strategic Cooperation, Ample Stock, Stable Batch Production, and Large-Scale Export Capabilities