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HomeUN NumbersClass 4.3UN1405
Hazard Class 4.3Packing Group II/III

UN Number

UN1405

Calcium silicide

Official source: 49 CFR 172.101 (eCFR)

Hazardous Materials Table entry

2 rows in 49 CFR 172.101 for UN1405.

Sym.DescriptionClassPGLabelsSpecial provisions8A8B8C9A9B10A10B
—Calcium silicide4.3II4.3A19, IB7, IP2, IP21, T3, TP33, W3115121224115 kg50 kgB13, 52, 85, 103, 148
—Calcium silicide4.3III4.3A1, A19, IB8, IP21, T1, TP33, W3115121324125 kg100 kgB13, 52, 85, 103, 148
  • Sym.: Column 1 symbols, 49 CFR 172.101(b).
  • Description: Column 2, the proper shipping name, 172.101(c).
  • Class: Column 3, hazard class or division, 172.101(d).
  • PG: Column 5, packing group, 172.101(f).
  • Labels: Column 6, label codes, 172.101(g).
  • Special provisions: Column 7, codes explained in 49 CFR 172.102, 172.101(h).
  • 8A / 8B / 8C: Packaging exceptions, non-bulk and bulk sections of 49 CFR part 173 (an entry of 202 means 173.202), 172.101(i).
  • 9A / 9B: Maximum quantity per package on passenger aircraft or rail, and on cargo aircraft only, 172.101(j).
  • 10A / 10B: Vessel stowage location and other stowage and handling codes, 172.101(k).

Division 4.3 — Dangerous When Wet Material

See the full class list

Dangerous when wet material (Division 4.3) is a material that, by contact with water, is liable to become spontaneously flammable or to give off flammable or toxic gas at a rate greater than 1 L per kilogram of the material, per hour.

Source: 49 CFR 173.124 (eCFR).

Previous / next UN number

UN1404Calcium hydrideUN1407Cesium or Caesium

Nearby Class 4.3 UN Numbers

UN1401CalciumUN1402Calcium carbideUN1403Calcium cyanamide with more than 0.1 percent of calcium carbideUN1408Ferrosilicon with 30 percent or more but less than 90 percent siliconUN1409Metal hydrides, water reactive, n.o.sUN1410Lithium aluminum hydride
View the full Class 4.3 list →

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