dichromium tris(chromate) (CAS 24613-89-6) — Safety Data Sheet

dichromium tris(chromate) — CAS 24613-89-6, Annex VI index 024-010-00-X. Below: what the regulatory file for this substance must contain and where such files usually fail.

dichromium tris(chromate) (CAS 24613-89-6) at a glance

• Substance – dichromium tris(chromate)
• CAS number – 24613-89-6
• EC number – 246-356-2
• CLP Annex VI index number – 024-010-00-X
• Also known as – chromium III chromate, chromic chromate
• Hazard statements – H271; H350 (may cause cancer); H314 (causes severe skin burns and eye damage); H317 (may cause an allergic skin reaction); H400 (very toxic to aquatic life); H410 (very toxic to aquatic life with long lasting effects)
• Hazard classes – Ox. Sol. 1, Carc. 1B, Skin Corr. 1A, Skin Sens. 1, Aquatic Acute 1, Aquatic Chronic 1
• Label pictograms – GHS03, GHS05, GHS07, GHS08, GHS09
• Signal word – Danger
• Annex VI notes – T
• Entry current as of – CLP00
• 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.

What is the EC number for dichromium tris(chromate)?

Alongside CAS 24613-89-6, this substance carries EC number 246-356-2 and Annex VI index 024-010-00-X. 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.

Aquatic hazard and disposal

Aquatic hazard classification (H400, H410) for CAS 24613-89-6 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.

Stability, reactivity and incompatibilities

Reactivity information for CAS 24613-89-6 in section 10 has to be specific enough to act on. ‘Avoid strong oxidising agents’ is a category; naming the classes that actually react is an instruction.

Which GHS pictograms apply to dichromium tris(chromate)?

The label for dichromium tris(chromate) carries GHS03 (flame over circle), GHS05 (corrosion), 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 24613-89-6, 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.

What Annex VI notes and concentration limits apply to dichromium tris(chromate)?

The Annex VI entry for CAS 24613-89-6 carries note T. Notes are not commentary: they modify how the classification applies — to concentration ranges, to specific forms of the substance, or to the labelling that follows from it. An entry read without its notes is read incompletely.

Identifiers that must agree

Three identifiers accompany this substance, and all must align: the CAS number 24613-89-6, the Annex VI index number 024-010-00-X, and the name as listed in the register. Incongruent identifiers represent the subtlest flaw in a documentation set, as each individual document appears correct until a cross-check reveals they describe distinct entities.

Is dichromium tris(chromate) on the SVHC candidate list?

Yes — dichromium tris(chromate) appears on the candidate list of substances of very high concern. That triggers duties that classification alone does not: notification to ECHA above the tonnage threshold, and an obligation to inform recipients where the substance is present in an article above 0.1 % by weight. It is also listed in Annex XIV, with a sunset date of 2019-01-22. 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.

Protective equipment and exposure controls

When conducting a risk assessment for dichromium tris(chromate), laboratories must begin by referring to Section 8. If an occupational exposure limit is in place, it is essential to clearly state this limit along with its source and the corresponding averaging period. In cases where no such limit exists, the documentation should explicitly indicate this fact rather than leaving the relevant field blank.

What is the CLP classification of dichromium tris(chromate)?

The harmonised classification for CAS 24613-89-6 carries 6 hazard statements: H271, H350, H314, H317, H400, H410. In plain terms this means H271; may cause cancer; causes severe skin burns and eye damage; may cause an allergic skin reaction. 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.

Is dichromium tris(chromate) classified as a CMR substance?

CAS 24613-89-6 is classified as a CMR substance (H350). 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.

What must the label for dichromium tris(chromate) contain?

The supply label for dichromium tris(chromate) 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 H271, H350, H314… 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.

First-aid content and why it is read first

Section 4 covers first-aid measures for dichromium tris(chromate) by route of exposure: inhalation, skin, eye and ingestion, each answered separately. Generic advice to ‘seek medical attention’ in all four is the most common defect, and it is the one that matters at the moment somebody needs the sheet.

In which language must the SDS for dichromium tris(chromate) be supplied?

Language is a compliance question, not a convenience one. Wherever dichromium tris(chromate) reaches a customer, the receiving Member State may require the sheet in its own official language, and several do so without exception. An English original that satisfies an auditor in one country can be refused at the next border, with the content untouched and the fault lying entirely in which words it is written in.

Storage and handling in the document

Section 7 of the documentation for dichromium tris(chromate) details handling and storage procedures, including incompatible materials, conditions to be avoided, and any segregation requirements resulting from its classification. Laboratories reviewing this section need explicit instructions rather than general warnings; for example, a statement like ‘store in a cool dry place’ is insufficient because it leaves the responsibility of specifying precise storage conditions to the personnel.

What do customs check when importing dichromium tris(chromate)?

When a consignment of dichromium tris(chromate) is stopped at the border, the document examined first is rarely the invoice. It is section 14 of the safety data sheet and its agreement with the transport papers. A missing packing group, an absent UN number or a proper shipping name that contradicts the classification of CAS 24613-89-6 will hold the pallet regardless of how complete the remaining fifteen sections are.

Disposal route and waste classification

Section 13 for CAS 24613-89-6 states the disposal route and any contaminated-packaging handling. Laboratories are audited on whether their waste stream matches what the sheet declares, so a vague section here becomes a finding on the laboratory rather than on the supplier.

How is dichromium tris(chromate) classified for road, sea and air transport?

The transport classification for dichromium tris(chromate) 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.

Purity, certificates and what the sheet does not say

The purity grade is determined by a certificate of analysis rather than a safety data sheet. The safety data sheet for dichromium tris(chromate) provides information about the substance itself, while a certificate of analysis specifically details a particular batch, including measured results against the specification and the analytical method used for each parameter. Laboratories typically request both documents when they refer to ‘the COA’.

Questions about documentation for dichromium tris(chromate)

Can I check whether my existing sheet is still valid?

Yes. A section-by-section reading against Annex II and the current harmonised entry establishes that in one pass, and a sheet that passes is reported as passing.

Do I need a safety data sheet to import dichromium tris(chromate) into the EU?

Yes. A sheet compiled to Annex II of REACH must exist before the first consignment moves, and it must be held by the entity placing the substance on the Union market.

What is the CAS number of dichromium tris(chromate)?

CAS 24613-89-6. In CLP Annex VI the same substance carries index number 024-010-00-X, and both identifiers should appear in the documentation.

Is dichromium tris(chromate) 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.

MolGod.org issues documentation and does not sell, supply or ship chemical substances. CAS 24613-89-6 identifies the subject of this document.