cyclohexane (CAS 110-82-7) — Safety Data Sheet

Documentation for cyclohexane, CAS 110-82-7, prepared to the structure European enforcement expects. What is sold here is paperwork; the substance itself is not offered.

cyclohexane (CAS 110-82-7) at a glance

• Substance – cyclohexane
• CAS number – 110-82-7
• EC number – 203-806-2
• CLP Annex VI index number – 601-[CAS?]
• Hazard statements – H225 (highly flammable liquid and vapour); H304 (may be fatal if swallowed and enters airways); H336 (may cause drowsiness or dizziness); H315 (causes skin irritation); H400 (very toxic to aquatic life); H410 (very toxic to aquatic life with long lasting effects)
• Hazard classes – Flam. Liq. 2, Asp. Tox. 1, STOT SE 3, Skin Irrit. 2, Aquatic Acute 1, Aquatic Chronic 1
• Label pictograms – GHS02, GHS07, GHS08, GHS09
• Signal word – Danger
• Entry current as of – CLP00
• CMR classification – not classified as CMR in the harmonised entry
• 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.

Can I import cyclohexane into the EU?

An import of CAS 110-82-7 succeeds or fails on whether the accompanying sheet matches the register. Among substances listed in CLP Annex VI the recurring failure is a classification carried over from a supplier outside the Union, where the same substance may be classified differently. Index 601-[CAS?] is the binding reference, and it is in regulated consignments that the discrepancy surfaces.

What happens if a consignment of cyclohexane is refused?

Refusals concerning cyclohexane usually stem from three primary reasons: outdated classification resulting from amendments, discrepancies between transport data and shipping documents, and language barriers when the receiving authority does not accept the submitted documentation. These issues are not evident to a reader who views the document as professionally prepared.

What must the label for cyclohexane contain?

The supply label for cyclohexane 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 H225, H304, H336… 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 is cyclohexane classified for road, sea and air transport?

Section 14 for CAS 110-82-7 includes the UN number, correct shipping name, class, packing group, and environmental hazard where applicable. If the substance is not hazardous for transportation, Section 14 explicitly states this rather than being left empty; an empty Section 14 is interpreted as an omission rather than a lack of hazard.

Where is regulatory status recorded for cyclohexane?

Section 15 records regulatory status for cyclohexane: whether it appears on the candidate list, whether it is subject to authorisation or restriction, and any national provisions. Downstream users ask this question routinely, and a sheet that answers it saves an exchange of emails per customer.

What is the CLP classification of cyclohexane?

The harmonised classification for CAS 110-82-7 carries 6 hazard statements: H225, H304, H336, H315, H400, H410. In plain terms this means highly flammable liquid and vapour; may be fatal if swallowed and enters airways; may cause drowsiness or dizziness; causes skin irritation. 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.

Protective equipment and exposure controls

Personal protective equipment for CAS 110-82-7 is prescribed in section 8, alongside engineering controls that come first in the hierarchy. A sheet naming protective equipment without naming ventilation requirements has skipped the more important half.

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 cyclohexane 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’.

How do I check if my SDS for cyclohexane is still valid?

If a sheet for cyclohexane is already in circulation, the useful first question is not whether to replace it but whether it is wrong, and if so in which section. Defects repeat across a catalogue, so three documents usually reveal what three hundred need.

What is the EC number for cyclohexane?

Alongside CAS 110-82-7, this substance carries EC number 203-806-2 and Annex VI index 601-[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.

Storage and handling in the document

Section 7 of the documentation for cyclohexane 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.

Why a correct sheet stops being correct

Classification under CLP moves with each Adaptation to Technical Progress. A sheet for CAS 110-82-7 written before the amendment that touched its entry keeps stating a classification the register no longer holds. Nothing in the document announces this — it reads exactly as it did on the day it was issued, which is precisely why revision dates are checked before content.

Identifiers that must agree

Three identifiers travel with this substance and all three have to agree: CAS 110-82-7, the Annex VI index number 601-[CAS?], and the name as it appears in the register. Mismatched identifiers are the quietest defect in a documentation set, because every individual document looks correct and only a cross-check reveals that they describe different things.

Which GHS pictograms apply to cyclohexane?

The label for cyclohexane carries GHS02 (flame), 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 110-82-7, 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.

Documentation demand on the EU market

CAS 110-82-7 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.

Which SDS sections decide whether a shipment clears?

The sixteen sections prescribed by Annex II are not a formatting convention; each carries a defined content and an inspector reads them by number. For CAS 110-82-7 the sections that usually decide acceptance are 2 (classification against the harmonised entry), 3 (composition and identifiers), 14 (transport) and 15 (regulatory status). Sections may not be merged, renumbered or left with a placeholder.

Disposal route and waste classification

Section 13 for CAS 110-82-7 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.

Stability, reactivity and incompatibilities

Section 10 records stability and reactivity for cyclohexane: conditions to avoid, incompatible materials, and hazardous decomposition products. This is the section a laboratory consults before placing two substances on the same shelf.

Questions about documentation for cyclohexane

What is the CAS number of cyclohexane?

CAS 110-82-7. In CLP Annex VI the same substance carries index number 601-[CAS?], and both identifiers should appear in the documentation.

What hazard statements apply to CAS 110-82-7?

The harmonised entry lists H225, H304, H336, H315. 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 cyclohexane is placed on the market, unless that State has stated otherwise.

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.

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