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About TDS

Technical Database Services (TDS) is an internationally recognized source of reliable chemical property data. Our clients gain easy access to physical, thermodynamic and EHS (environmental, health and safety) data that is vital to their work. Scientists, engineers and researchers use TDS software to perform complex calculations, process simulations and other tasks with greater efficiency by retrieving data rapidly via mobile or desktop clients.

Data from TDS is used in a wide range of applications including:

  • Chemical Engineering R&D
  • Water Purification
  • Oil & Gas
  • Environmental Engineering
  • Pharmaceutical Design
  • Process Development
Silanes
Silanes Properties

TDS Software products

DIPPR/EHSTM - Rapid access to reliable physical property data from the AIChE DIPPRR Project 801 and High quality environmental, health and safety data from the US Environmental Protection Agency (USEPA).

LogKow DatabaseTM - A comprehensive compendium of experimental octanol/water (Log P) and other partition coefficients for over 30,000 chemicals. The LogKow is a valuable indicator of a chemical's biological activity.

TDS NEWS

DIPPRR/EHS Online our advanced online version has now been updated with the latest physical property data. Dippr/EHS provides rapid access to reliable physical property data from AIChE Project 801 - and high quality environmental, health and safety data from the US Environmental Protection Agency (USEPA).

In mid 2026, TDS is planning to release a new search utility for Dippr/EHS. This new search aims to help researchers zero-in on only those Dippr chemicals which have property data within a specific range of values.