TETRAMETHYLAMMONIUM HYDROXIDE AQUEOUS SOLUTION with more than 2.5 % but less than 25 % tetramethylammonium hydroxide
ADR 2025 · Class 8 · 2 variants · carriage of dangerous goods by road
- Class
- 8
- Classif.
- CT1
- Pack. group
- II
- Hazard labels
- 8 +6.1
- Transport cat.
- 2 (E)
Variant 1 — packing group II
Variant 2 — packing group III: TETRAMETHYLAMMONIUM HYDROXIDE AQUEOUS SOLUTION with not more than 2.5 % tetramethylammonium hydroxide
Special provisions
SP 279
The substance is assigned to this classification or packing group based on human experience rather than the strict application of classification criteria set out in ADR.
SP 408
This entry applies only to aqueous solutions comprised of water, tetramethylammonium hydroxide (TMAH), and no more than 1 % of other constituents. Other formulations containing tetramethylammonium hydroxide shall be assigned to an appropriate generic or N.O.S. entry (e.g. UN No. 2927 TOXIC LIQUID, CORROSIVE, ORGANIC, N.O.S.), except as follows: (a) Other formulations containing a surfactant in a concentration > 1 % and with not less than 8.75 % tetramethylammonium hydroxide shall be assigned to UN No. 2927 TOXIC LIQUID, CORROSIVE, ORGANIC, N.O.S., PG I; and (b) Other formulations containing a surfactant in a concentration > 1 % and with more than 2.38 % but less than 8.75 % tetramethylammonium hydroxide shall be assigned to UN No. 2927 TOXIC LIQUID, CORROSIVE, ORGANIC, N.O.S., PG II.