UN 2441

TITANIUM TRICHLORIDE, PYROPHORIC or TITANIUM TRICHLORIDE MIXTURE, PYROPHORIC

Class 4.2 — Flammable SolidsPacking Group I
UN 2441Class 4.2 — Flammable SolidsPG I
Packing Group
I
High danger
Classification Code
SC4
Tunnel Code
(E) meaning →
Code governing tunnel passage
Transport Category
0
For the 1,000-point rule (0 = highest restriction)
Hazard ID No.
—
Kemler code
Limited Quantity
0
Max per inner package for LQ relief
Excepted Quantity
E0
EQ code for excepted quantity relief
Thresholds — why, not just the verdict
Transport Category
Category 0
Never exempt — any quantity requires full ADR compliance
Per-substance max
0 kg/L
Per-substance maximum (1.1.3.6.3) — Category 0 is never exempt
Limited Quantity
Not permitted
No limited-quantity relief for this entry (Chapter 3.4)
Excepted Quantity
E0
No excepted-quantity relief for this entry (Chapter 3.5)
Tunnel Code
Governs which tunnel categories the load may pass
Special Provisions
SP 537
May alter scope or limits — full text in ADR 2025 Chapter 3.3
Hazard Labels Required
Label 4.2Label 8

These labels must be displayed on packages and vehicle placards in accordance with ADR 2025.

Special Provisions
SP 537

Refer to ADR 2025 Chapter 3.3 for full text of each provision.

Check if UN 2441 qualifies for 1.1.3.6 exemption
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ADR 2027 (accepted)

ADR 2027 was accepted: depositary notification C.N.395.2026 (9 October 2026) records no objection to the amendments proposed by C.N.252.2026. It applies from 1 January 2027, and ADR 2025 may still be applied until 30 June 2027 (1.6.1.1). (C.N.395.2026)

The ADR 2027 amendments (ECE/TRANS/WP.15/274, ECE/TRANS/WP.15/274/Add.1, ECE/TRANS/WP.15/274/Corr.1) make no change to this entry's Table A columns. Other parts of ADR 2027 may still affect its carriage.

ADR 2025 remains the edition FreightUtils serves and the one that applies until ADR 2027 takes effect on 1 January 2027; after that, ADR 2025 may still be applied until 30 June 2027 (1.6.1.1).

All ADR 2027 Table A changes →

Other Flammable Solids near UN 2441 (Class 4.2)

UN 2217
SEED CAKE with not more than 1.5…
UN 2318
SODIUM HYDROSULPHIDE with less t…
UN 2447
PHOSPHORUS, WHITE, MOLTEN
UN 2545
HAFNIUM POWDER, DRY
UN 2546
TITANIUM POWDER, DRY
All Class 4.2 UN numbers →
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📅Data: UNECE ADR 2025 (ECE/TRANS/352), via EU Directive 2008/68/EC. Last verified August 2026

ADR reference data only. Classification is the consignor's legal responsibility. Consult a DGSA for compliance decisions.

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