EC index number

The EC index number is in Annex I to Directive 67/548 / EEC specified identification - code for a particular hazardous substance . This list was replaced by Annex VI of Regulation (EC) No. 1272/2008 (CLP) of December 16, 2008; it is regularly adapted to technical progress.

The EC index number must be distinguished from the EC number .

The first three digits up to 82 indicate the ordinal number of the element determining the risk. For example, "007" (nitrogen)

007-008-00-3 hydrazine

007-010-00-4 sodium nitrite

007-011-00-X potassium nitrite

The next three digits are a consecutive number within the leading three digits; they are assigned in the random chronological order in which these hazardous substances were added to the list. As a result of changes in the meantime, this number sequence is incomplete. Another random example of sulfur:

016-023-00-4 dimethyl sulfate

The following two digits are used to distinguish “close relatives” from each other, who are otherwise the same in the first 6 digits. This rarely happens and mostly only affects the "01" in addition to the "00". Here is the example

017-002-00-2 hydrogen chloride (gas)

017-002-01-X hydrochloric acid

Finally, the last digit is a check digit (using the modulo 11 method).

The inorganic hazardous substances end with the lead compounds:

082-002-00-1 lead alkyls

Because of the large number of organic compounds, the leading 006 is only assigned to inorganic hazardous substances with carbon; For the hazardous substances from organic chemistry, the numbers from 601 to 617 are used and assigned to certain groups of substances, as can be seen from the following examples:

601-017-00-1 cyclohexane

602-011-00-1 dichloroethane

603-054-00-9 dibutyl ether

604-001-00-2 phenol

605-016-00-7 glyoxal

606-001-00-8 acetone

607-003-00-1 chloroacetic acid

608-003-00-4 acrylonitrile

609-015-00-2 4-nitrophenol

610-009-00-7 2-chloro-4-nitroaniline

611-008-00-4 4-aminoazobenzene

612-004-00-5 triethylamine