Product Data Sheet

Eka ClO₂
Chlorine Dioxide

Eka® ClO₂ is chlorine dioxide; it is generally produced,
stored and typically fed as an 8-11 grams per literaqueous solution to the desired application point.

CAS number
10049-04-4

Molecular weight
67.45

Molecular formula
ClO₂

Chlorine dioxide characteristics
Appearance

Transparent light green liquid

Form

Aqueous solution

Odor

PungentApplications
Eka® ClO₂ (chlorine dioxide) is the main bleaching agent used in modern environmentally compatible paper pulp
manufacturing. Chlorine dioxide is the main component in ECF (Elemental Chlorine-Free) bleaching. Up to 99 percent of
all chlorine dioxide produced worldwide is consumed by the Pulp Industry. Other common applications for chlorine
dioxide include use as a broad-spectrum biocide and primary disinfectant for potable and cooling water. In water
treatment, appropriate chlorine dioxide solution concentrations are metered directly from an on-site generator to theapplication point.

Packaging and transport
Chlorine dioxide should be produced at the same site where it will be used. For ground and ocean transportation of
aqueous chlorine dioxide solutions you must consult with local regulatory bodies prior to packaging and transporting(even sample quantities). A release of chlorine dioxide in the event of a spill would constitute a significant risk/hazard. Air
transportation of chlorine dioxide in any form is prohibited. Nouryon offers the best available techniques for its
generation, storage and application each with their own special considerations. For our customers, who own and operate
production facilities, we offer flexible service programs to meet their chlorine dioxide technology, safety, operational andmaintenance needs.

Safety and handling
Please refer to the current SDS (Safety Data Sheet) to understand the safety aspects, preventive protection required andfirst aid response. Chlorine dioxide is classified as an acute health hazard. It is a strong oxidizing agent which is very
soluble in water. Gaseous chlorine dioxide may evolve from solution presenting serious acute and chronic respiratory risks.
Chlorine dioxide stability in solution is dependent on temperatures and partial pressures. Gaseous chlorine dioxide has
highly toxic characteristics and a gas release constitutes a significant risk and may become explosive at concentrations inexcess of 10% in air. Consequently, proper system design and control is required to prevent unintended chlorine dioxide
gas evolution while enabling secure pressure relief. Chlorine dioxide gas readily decomposes to liberate oxygen, heat andchlorine gas. Avoid all contact with organic material, reducing agents, ferrous alloys and sunlight. Chlorine dioxide is not
flammable; however, due to the fact that it releases oxygen during decomposition it is an extreme combustion accelerant.
Nouryon representatives will be pleased to discuss in detail the safe handling, application and benefits of Eka® ClO₂. To
arrange your personal interview, please contact your Nouryon account representative, email
bleaching_experts@nouryon.com or call one of the numbers below.

Mandatory protective equipment
Because chlorine dioxide is an extreme respiratory irritant and powerful oxidizer it should never come in contact withorganic materials. Make sure, as a minimum, all personnel handling chlorine dioxide are provided with, and required towear, the following items:
Measure 1

Approved personal escape respirator

Measure 2

Nitrile or Neoprene gloves and boots

Measure 3

Full face mask respirator with ABEK P3 filter

Measure 4

Site required personal protective equipment

Additional information
Eka® ClO₂ production at all Nouryon owned and operated sites is in accordance with certified management systems. To
receive a copy of the current certificate(s) contact your Nouryon representative. Nouryon representatives will be pleased todiscuss in detail the safe handling, application and benefits of Eka® ClO₂. To arrange your personal interview, pleasecontact your Nouryon account representative, email bleaching_experts@nouryon.com or call one of the numbers below.

All information concerning this product and/or suggestions for handling and use contained herein are offered in good faith and are believed to be reliable.
Nouryon, however, makes no warranty as to accuracy and/or sufficiency of such information and/or suggestions, as to the product's merchantability orfitness for any particular purpose, or that any suggested use will not infringe any patent. Nouryon does not accept any liability whatsoever arising out of theuse of or reliance on this information, or out of the use or the performance of the product. Nothing contained herein shall be construed as granting orextending any license under any patent. Customer must determine for himself, by preliminary tests or otherwise, the suitability of this product for his purposes.
The information contained herein supersedes all previously issued information on the subject matter covered. The customer may forward, distribute, and/or
photocopy this document only if unaltered and complete, including all of its headers and footers, and should refrain from any unauthorized use. Don’t copy
this document to a website.

Contact UsBohus+46 31 58 70 00
bleaching_experts@nouryon.com
Marietta+1 770 578 0858
bleaching_experts@nouryon.com
Jundiaí+55 11 4589 4800
bleaching_experts@nouryon.com
Shanghai+86 21 2289 1000
bleaching_experts@nouryon.com

2022-7-14© 2022

Eka ClO₂