Chemdata guidance and resource downloads


Chemdata is a database containing over 61,000 substances with over 176,000 different chemical names, including pure and trade-name chemicals, which provides advice to Emergency Responders for incidents involving chemical spillages, fires and contamination incidents.

Chemdata Quick Start Guides

Chemdata History viewer

Download application to enable you to view the Chemdata and Pocket Chemdata history files on your PC.  For Windows users using the NCEC standard installation, the application is included on your installation CD and installed as part of the Installation process.  For Android and iOS Pocket Chemdata users, you will need to install the application from here onto your Windows PC or laptop.  You may copy the Chemdata history files onto your PC and view the audit trail there.

The ViewChemHistory application allows the user to view the last 2048 actions carried out in Chemdata or Pocket Chemdata. To use the History viewer, follow the instructions for the version of Chemdata you are using.

Where to find the History file
Chemdata for Windows
The history file, called CHEM_HISTORY.USTT will be found in ProgramData\Chemdata.  Please note that this may be a hidden folder and you may therefore need to enable viewing of hidden folders.
Pocket Chemdata Android app The history file, called pchem_history.stt will be found in the Chemdata folder in your storage area. Transfer the file to your PC or laptop.
Pocket Chemdata iOS app Transfer the history file, called CHEM_HISTORY.USTT, as a ZIP file via email by using Send History in the program menu.

The history file identifies the date and time of the action, the machine and user, the action itself and other relevant details. Actions recorded include searches (including parameters used for the search) and viewing and closing of documents. Copies of the history file may be kept on the PC and viewed at any time using the Chemdata History Viewer.

FAO Chemdata users

Software updates are now being made available to users via Ricardo’s Box account rather than our Customer Portal.  This new system provides users with a more robust delivery mechanism using Box’s infrastructure and, once invitations have been accepted users will receive automatic notifications of any future updates as soon as they are made available.  Users that receive software updates on behalf of their organisations will have received an invitation from with a subject line of ‘Maria Stearn has invited you to collaborate on Box’.  As this may be caught by spam filters, we recommend you add this address to your whitelist.