perfluorooctane sulfonic acid (CAS 1763-23-1) — Safety Data Sheet

This page describes the regulatory documentation issued for perfluorooctane sulfonic acid (CAS 1763-23-1). The item supplied is a document, not the substance.

perfluorooctane sulfonic acid (CAS 1763-23-1) at a glance

• Substance – perfluorooctane sulfonic acid
• CAS number – 1763-23-1
• EC number – 217-179-8 [1];220-527-1 [2];274-460-8 [3];249-415-0 [4];249-644-6 [5]
• CLP Annex VI index number – 607-[CAS?]
• Also known as – heptadecafluorooctane-1-sulfonic acid
• Hazard statements – H351 (suspected of causing cancer); H360D (may damage the unborn child); H362 (may cause harm to breast-fed children); H332 (harmful if inhaled); H302 (harmful if swallowed); H372 (causes damage to organs through prolonged or repeated exposure)
• Hazard classes – Carc. 2, Repr. 1B, Lact., Acute Tox. 4 *, Acute Tox. 4 *, STOT RE 1
• Label pictograms – GHS07, GHS08, GHS09
• Signal word – Danger
• Entry current as of – ATP01
• CMR classification – yes, classified as carcinogenic, mutagenic or toxic for reproduction
• Documentation issued – safety data sheet in REACH Annex II structure; working draft or signed card
• What is supplied – a document. MolGod.org does not sell, supply or ship chemical substances.

Protective equipment and exposure controls

Laboratories building a risk assessment for perfluorooctane sulfonic acid start from section 8. Where an occupational exposure limit exists it must be stated with its source and averaging period; where none exists, the sheet says so rather than leaving the field blank.

Purity, certificates and what the sheet does not say

Purity grade is a certificate question, not a safety data sheet question. The sheet for perfluorooctane sulfonic acid describes the substance; a certificate of analysis describes one batch of it, with the measured result against the specification and the analytical method named per parameter. Laboratories asking for ‘the COA’ usually need both documents.

How is perfluorooctane sulfonic acid classified for road, sea and air transport?

The transport classification for perfluorooctane sulfonic acid falls under section 14 and varies depending on the mode of transport: ADR for road, IMDG for sea, and IATA for air. A document that prints all three classifications without specifying which one applies places the responsibility on the shipper to select the correct one, and it is the shipper who faces penalties for making an incorrect choice.

Can I import perfluorooctane sulfonic acid into the EU?

Placing perfluorooctane sulfonic acid (CAS 1763-23-1) on the European Union market requires a safety data sheet compiled to Annex II of REACH before the first consignment moves. For carboxylic acid esters, customs and carrier checks concentrate on solvent and intermediate shipments, where the classification stated in section 2 must agree with the harmonised entry in CLP Annex VI under index number 607-[CAS?].

Identifiers that must agree

The CAS 1763-23-1 number and index number 607-[CAS?] are not interchangeable or decorative elements; they serve distinct purposes. The index number connects to the harmonised classification system, whereas the CAS number links to chemical literature. A document containing one without the other requires readers to independently reconstruct this relationship, which may lead to errors during reconstruction.

What is the EC number for perfluorooctane sulfonic acid?

Alongside CAS 1763-23-1, this substance carries EC number 217-179-8 [1];220-527-1 [2];274-460-8 [3];249-415-0 [4];249-644-6 [5] and Annex VI index 607-[CAS?]. European documentation is built around the EC number as often as around the CAS: registration dossiers, the candidate list and customs systems key on it. A safety data sheet quoting only one of the two forces every downstream reader to look up the other.

Which GHS pictograms apply to perfluorooctane sulfonic acid?

The label for perfluorooctane sulfonic acid carries GHS07 (exclamation mark), GHS08 (health hazard), GHS09 (environment), with the signal word Danger. These are not chosen by the supplier: CLP Annex VI states them for CAS 1763-23-1, and the precedence rules in Annex I decide which pictogram is dropped when two would say the same thing. A label showing a different set from the register is wrong even if every hazard statement on it is correct.

In which language must the SDS for perfluorooctane sulfonic acid be supplied?

Language compliance is mandatory rather than optional. When perfluorooctane sulfonic acid is delivered to a customer, the receiving Member State may mandate the use of its official language, and several do so without exception. An English original that meets an auditor’s requirements in one country can be rejected at the subsequent border, with no alteration to the content but due solely to the choice of language.

Is perfluorooctane sulfonic acid on the SVHC candidate list?

It is also listed in Annex XIV and requires authorisation, with a sunset date of 2015-08-17. Once a substance reaches Annex XIV, continued use in the Union requires an authorisation granted for a named use — a supplier relationship alone is not a legal basis.

Stability, reactivity and incompatibilities

Incompatibilities for perfluorooctane sulfonic acid should be detailed under section 10 and must not conflict with the storage instructions provided in section 7. If a document lists a material as incompatible in one section while permitting its use in another, it is no longer considered valid.

Is perfluorooctane sulfonic acid classified as a CMR substance?

CAS 1763-23-1 is classified as a CMR substance (H360D). That status changes the obligations attached to every shipment: workplace exposure documentation, restrictions on supply to the general public, and substitution pressure from downstream users who must justify continued use. A safety data sheet for a CMR substance is read more closely than any other, because the classification itself invites scrutiny.

Aquatic hazard and disposal

Aquatic hazard classification (H411) for CAS 1763-23-1 reaches beyond the label. It governs the environmental section of the safety data sheet, the disposal route stated in section 13, and in several Member States the reporting threshold for storage. Consignments carrying an aquatic hazard also attract marine pollutant marking when moved by sea.

What must the label for perfluorooctane sulfonic acid contain?

The supply label for perfluorooctane sulfonic acid is generated from the same classification that drives the safety data sheet: pictograms selected by precedence, one signal word derived from the highest hazard class present, and the hazard statements H351, H360D, H362… reproduced in full. Where the container is too small to carry the complete set at a legible size, there are lawful ways to handle it and unlawful ones that look identical to a non-specialist.

How do I check if my SDS for perfluorooctane sulfonic acid is still valid?

If a document concerning perfluorooctane sulfonic acid is already in circulation, the initial consideration should be whether it is incorrect rather than whether to replace it, and if incorrect, in which specific sections. Errors tend to recur across a range of documents; therefore, examining three documents often provides insights that would otherwise require reviewing three hundred.

Storage and handling in the document

The store manager responsible for managing material with CAS number 1763-23-1 must review Section 7 first to determine its compatibility with adjacent materials, required atmosphere conditions, and any segregation rules arising from its classification. The necessary information regarding these aspects must be explicitly stated in the documentation provided, rather than relying on supplier email correspondence.

What is the CLP classification of perfluorooctane sulfonic acid?

The harmonised classification for CAS 1763-23-1 carries 7 hazard statements: H351, H360D, H362, H332, H302, H372, H411. In plain terms this means suspected of causing cancer; may damage the unborn child; may cause harm to breast-fed children; harmful if inhaled. A harmonised entry is binding across the Union — an importer may not soften it, and a self-classification that diverges from it will not survive an enforcement check.

Accidental release and containment

A spill involving substance with CAS number 1763-23-1 must be managed according to Section 6, which should clearly specify the required containment materials and personal protective equipment necessary for personnel approaching the spill site. An operational sheet outlining the cleanup process without detailing the appropriate attire for workers is considered incomplete.

What happens if a consignment of perfluorooctane sulfonic acid is refused?

Refusals related to perfluorooctane sulfonic acid typically arise from three main causes: outdated classification due to amendments, inconsistencies between transport data and shipping documents, and language barriers where the receiving authority does not accept the provided documentation. These issues are not apparent to a reader who perceives the document as professionally presented.

Questions about documentation for perfluorooctane sulfonic acid

What is the CAS number of perfluorooctane sulfonic acid?

CAS 1763-23-1. In CLP Annex VI the same substance carries index number 607-[CAS?], and both identifiers should appear in the documentation.

Is perfluorooctane sulfonic acid a CMR substance?

Yes. The harmonised classification places it among substances classified as carcinogenic, mutagenic or toxic for reproduction, which changes workplace documentation and supply restrictions.

What hazard statements apply to CAS 1763-23-1?

The harmonised entry lists H351, H360D, H362, H332. These are binding across the Union and may not be softened by a self-classification.

In which language must the sheet be supplied?

In an official language of each Member State where perfluorooctane sulfonic acid is placed on the market, unless that State has stated otherwise.

MolGod.org issues documentation and does not sell, supply or ship chemical substances. CAS 1763-23-1 identifies the subject of this document.