trinickel disulfide (CAS 12035-72-2) — Safety Data Sheet

For trinickel disulfide (CAS 12035-72-2) the documentation obligation begins before the first shipment. This page sets out what the safety data sheet has to establish.

trinickel disulfide (CAS 12035-72-2) at a glance

• Substance – trinickel disulfide
• CAS number – 12035-72-2
• EC number – 234-829-6 [1];- [2]
• CLP Annex VI index number – 028-[CAS?]
• Also known as – nickel subsulfide
• Hazard statements – H350i; H341 (suspected of causing genetic defects); H331 (toxic if inhaled); H372 (causes damage to organs through prolonged or repeated exposure); H317 (may cause an allergic skin reaction); H400 (very toxic to aquatic life)
• Hazard classes – Carc. 1A, Muta. 2, Acute Tox. 3, STOT RE 1, Skin Sens. 1, Aquatic Acute 1
• Label pictograms – GHS06, GHS08, GHS09
• Signal word – Danger
• Concentration limits / M-factor / ATE – inhalation: ATE = 0.92 mg/L dusts or mists
• Entry current as of – ATP17
• 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.

How is trinickel disulfide classified for road, sea and air transport?

Carriers and forwarders handling trinickel disulfide compare section 14 against the shipping papers before loading. Any disagreement stops the consignment at the point where correcting it is most expensive.

What must the label for trinickel disulfide contain?

The supply label for trinickel disulfide 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 H350i, H341, H331… 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.

Documentation demand on the EU market

CAS 12035-72-2 has a recorded presence on the European trading market, which means documentation for it is requested routinely rather than exceptionally. Substances that move in commerce attract repeat scrutiny: the same sheet is read by successive customers, carriers and authorities, and a defect that survives the first reading rarely survives the tenth.

Can I import trinickel disulfide into the EU?

Bringing trinickel disulfide into the Union is a documentation exercise before it is a logistics one. The file has to exist at the moment of import, not at the moment somebody asks for it, and for nickel compounds it is examined in the context of metal-compound consignments under authorisation pressure. Index 028-[CAS?] fixes the classification that section 2 must reproduce.

What is the EC number for trinickel disulfide?

Alongside CAS 12035-72-2, this substance carries EC number 234-829-6 [1];- [2] and Annex VI index 028-[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.

Where is regulatory status recorded for trinickel disulfide?

Whether CAS 12035-72-2 carries obligations beyond classification — candidate list entry, authorisation, restriction — belongs in section 15. Customers increasingly request a written statement on this point before placing an order, and the sheet is the natural place for it.

Target organ toxicity in the sheet

Specific target organ toxicity (H372) obliges the sheet to state the route of exposure and, where established, the organ affected. This is one of the few places where a generic phrase is treated as a defect rather than as caution: an unspecified organ leaves the downstream user unable to build an exposure scenario.

What concentration limits apply to trinickel disulfide?

Acute toxicity estimate stated in the register: inhalation: ATE = 0,92 mg/l.

Other names for this substance

The same substance appears in trade and in the literature under several names: nickel subsulfide. A safety data sheet has to carry the name used in the harmonised entry, but a purchase order, a customs declaration and a certificate of analysis may each use a different one. Where the names diverge, CAS 12035-72-2 is the identifier that reconciles them — and a document set that relies on trade names alone will eventually be read as describing three different materials.

Disposal route and waste classification

Section 13 for CAS 12035-72-2 outlines the disposal method and procedures for contaminated packaging. Laboratories are subject to audits to ensure their waste management practices align with the information provided in this section. Any ambiguity or lack of specificity in this section may result in findings against the laboratory rather than the supplier, as it is responsible for adhering to the declared waste stream.

Is trinickel disulfide classified as a CMR substance?

CAS 12035-72-2 is classified as a CMR substance (H350i). 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.

Identifiers that must agree

Identity verification must be conducted prior to hazard assessment. If discrepancies exist between the label, safety data sheet, and certificate regarding the CAS 12035-72-2 number or if the index 028-[CAS?] refers to a location where the name does not match, a reviewer will lose trust in all three documents simultaneously, despite their internal consistency. This is because inconsistencies among these key documentation elements undermine their reliability as a unified source of information.

Purity, certificates and what the sheet does not say

For CAS 12035-72-2, the differentiation between grades such as technical, reagent, and analytical is documented in the certificate of analysis and the relevant specifications rather than on the safety data sheet. This confusion between the two is the most frequent documentation error observed in laboratory procurement processes.

Which GHS pictograms apply to trinickel disulfide?

The label for trinickel disulfide carries GHS06 (skull and crossbones), GHS08 (health hazard), GHS09 (environment), with the signal word Danger. These are not chosen by the supplier: CLP Annex VI states them for CAS 12035-72-2, 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.

Protective equipment and exposure controls

When conducting a risk assessment for trinickel disulfide, 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 Annex VI notes and concentration limits apply to trinickel disulfide?

The register also records inhalation: ATE = 0.92 mg/L dusts or mists for this entry. Specific concentration limits, M-factors and acute toxicity estimates override the generic cut-off values, so a mixture calculation that ignores them will classify the mixture wrongly in both directions.

What is the CLP classification of trinickel disulfide?

The harmonised classification for CAS 12035-72-2 carries 7 hazard statements: H350i, H341, H331, H372, H317, H400, H410. In plain terms this means H350i; suspected of causing genetic defects; toxic if inhaled; causes damage to organs through prolonged or repeated exposure. 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.

Stability, reactivity and incompatibilities

The reactivity information for CAS 12035-72-2 provided under Section 10 must be sufficiently detailed and actionable. While stating ‘avoid strong oxidizing agents’ offers a general category, specifying the exact chemical classes that react with the substance in question provides clearer guidance on appropriate handling and precautionary measures.

Questions about documentation for trinickel disulfide

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 trinickel disulfide 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 trinickel disulfide?

CAS 12035-72-2. In CLP Annex VI the same substance carries index number 028-[CAS?], and both identifiers should appear in the documentation.

Is trinickel disulfide 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 12035-72-2 identifies the subject of this document.