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Identification
- Name:
- Hexanoic acid, undecafluoro-, sodium salt@sodium undecafluorohexanoate
- CAS:
- 2923-26-4
- EC/EINECS:
- 220-881-7
- Molecular Formula:
- C6-H-F11-O2 .Na
CLASSIFICATION AND LABELLING (Regulation 1272/2008)
No classifications available
Specific health risks
According to IARC ?
Substances classified by the International Agency for Research on Cancer (IARC/WHO) according to their evidence of carcinogenicity in humans. Groups range from 1 (proven human carcinogen) to 4 (probably not carcinogenic to humans). The IARC classification is an international reference in occupational and environmental health.
Restriction/prohibition regulations
Restricted substances under REACH ?
Substances listed in Annex XVII of the REACH Regulation (EC) No 1907/2006, subject to restrictions on their manufacture, placing on the market or use. Restrictions may be total or partial, limiting specific applications, maximum concentrations or user groups.
(a) having a linear or branched perfluoropentyl group with the formula C5F11- directly
attached to another carbon atom as one of the structural elements; or
(b) having a linear or branched perfluorohexyl group with the formula C6F13-.
The following substances are excluded from this designation:
(a) C6F14;
(b) C6F13-C(=O)OH, C6F13-C(=O)O-X′ or C6F13-CF2-X′ (where X′ = any group, including
salts);
(c) any substance having a perfluoroalkyl group C6F13- directly attached to an oxygen
atom at one of the non-terminal carbon atoms.
Conditions of restrictions:
1. Shall not, from 10 October 2026 be placed on the market, or used, in a concentration
equal to or greater than 25 ppb for the sum of PFHxA and its salts, or 1 000 ppb for the
sum of PFHxA-related substances, measured in homogeneous material, in the following:
(a) textiles, leather, furs and hides in clothing and related accessories for the general
public;
(b) footwear for the general public;
(c) paper and cardboard used as food contact materials within the scope of Regulation
(EC) No 1935/2004;
(d) mixtures for the general public;
(e) cosmetic products as defined in Article 2(1), point (a), of Regulation (EC) No
1223/2009.
2. Shall not, from 10 October 2027 be placed on the market, or used, in a concentration
equal to or greater than 25 ppb for the sum of PFHxA and its salts, or 1 000 ppb for the
sum of PFHxA-related substances, measured in homogeneous material, in textiles,
leather, furs and hides, other than in clothing and related accessories referred to in
paragraph 1, for the general public.
3. Paragraphs 1 and 2 shall not apply to the following:
(a) personal protective equipment intended to protect users against risks within the
scope of risk category III, points (a), (c) to (f), (h), and (l) of Annex I to Regulation
(EU) 2016/425;
(b) devices within the scope of Regulation (EU) 2017/745;
(c) devices within the scope of Regulation (EU) 2017/746;
(d) textiles used as construction textiles.
4. Shall not, from 10 April 2026 be placed on the market, or used, in a concentration equal
to or greater than 25 ppb for the sum of PFHxA and its salts, or 1 000 ppb for the sum of
PFHxA-related substances, in:
(a) firefighting foams and firefighting foam concentrates for training and for testing,
except functional testing of the firefighting systems provided that all releases are
contained;
(b) firefighting foams and firefighting foam concentrates for public fire services, except
where those services intervene at industrial fires at establishments covered by
Directive 2012/18/EU of the European Parliament and of the Council1 and they use
the foams and the equipment for that purpose only.
5. Shall not, from 10 October 2029 be placed on the market, or used, in firefighting foams
and firefighting foam concentrates for civil aviation (including in civilian airports) in a
concentration equal to or greater than 25 ppb for the sum of PFHxA and its salts, or 1
000 ppb for the sum of PFHxA-related substances.
6. Paragraphs 1, 2, 4 and 5 shall not apply to substances having a perfluoroalkyl group
C6F13- directly attached to a sulphur atom that are prohibited in Annex I to Regulation
(EU) 2019/1021 of the European Parliament and of the Council2.
7. By way of derogation from paragraph 1, that paragraph shall not apply to articles and
mixtures which were placed on the market before 10 October 2026.
8. By way of derogation from paragraph 2, that paragraph shall not apply to articles which
were placed on the market before 10 October 2027.
9. For the purposes of this entry, PFHxA-related substances are substances that, based on
their molecular structure, are considered to have the potential to degrade or be
transformed to PFHxA.
Substances under PACT evaluation ?
Substances under active regulatory monitoring through ECHA's PACT (Public Activities Coordination Tool). Allows tracking which regulatory authorities are examining a substance and what potential regulatory actions are being considered (restriction, SVHC identification, harmonised classification, etc.).