List of UN numbers 1801 to 1900
UN numbers from UN1801 to UN1900 as assigned by the United Nations Committee of Experts on the Transport of Dangerous Goods are as follows:
UN 1801 to UN 1900
| UN Number | Class | Proper Shipping Name |
| UN 1801 | 8 | Octyltrichlorosilane |
| UN 1802 | 8 | Perchloric acid with not more than 50 percent acid by mass |
| UN 1803 | 8 | Phenolsulfonic acid, liquid |
| UN 1804 | 8 | Phenyltrichlorosilane |
| UN 1805 | 8 | Phosphoric acid |
| UN 1806 | 8 | Phosphorus pentachloride |
| UN 1807 | 8 | Phosphorus pentoxide |
| UN 1808 | 8 | Phosphorus tribromide |
| UN 1809 | 6.1 | Phosphorus trichloride |
| UN 1810 | 8 | Phosphorus oxychloride |
| UN 1811 | 8 | Potassium hydrogendifluoride, solid or Potassium hydrogendifluoride, solution |
| UN 1812 | 8 | Potassium fluoride |
| UN 1813 | 8 | Potassium hydroxide, solid |
| UN 1814 | 8 | Potassium hydroxide, solution |
| UN 1815 | 3 | Propionyl chloride |
| UN 1816 | 8 | Propyltrichlorosilane |
| UN 1817 | 8 | Pyrosulfuryl chloride |
| UN 1818 | 8 | Silicon tetrachloride |
| UN 1819 | 8 | Sodium aluminate, solution |
| UN 1820 | ? | |
| UN 1821 | ? | Sodium hydrogen sulfate, solid |
| UN 1822 | ? | |
| UN 1823 | 8 | Sodium hydroxide, solid |
| UN 1824 | 8 | Sodium hydroxide solution |
| UN 1825 | 8 | Sodium monoxide |
| UN 1826 | 8 | Nitrating acid mixtures, spent with more than 50 percent nitric acid or Nitrating acid mixtures, spent with not more than 50 percent nitric acid |
| UN 1827 | 8 | Stannic chloride, anhydrous |
| UN 1828 | 8 | Sulfur chlorides |
| UN 1829 | 8 | Sulfur trioxide, inhibited or Sulfur trioxide, stabilized |
| UN 1830 | 8 | Sulfuric acid with more than 51 percent acid |
| UN 1831 | 8 | Sulfuric acid, fuming with 30 percent or more free sulfur trioxide or Sulfuric acid, fuming with less than 30 percent free sulfur trioxide |
| UN 1832 | 8 | Sulfuric acid, spent |
| UN 1833 | 8 | Sulfurous acid |
| UN 1834 | 8 | Sulfuryl chloride |
| UN 1835 | 8 | Tetramethylammonium hydroxide |
| UN 1836 | 8 | Thionyl chloride |
| UN 1837 | 8 | Thiophosphoryl chloride |
| UN 1838 | 8 | Titanium tetrachloride |
| UN 1839 | 8 | Trichloroacetic acid |
| UN 1840 | 8 | Zinc chloride, solution |
| UN 1841 | 9 | Acetaldehyde ammonia |
| UN 1842 | ? | Acetic acid |
| UN 1843 | 6.1 | Ammonium dinitro-o-cresolate |
| UN 1844 | ? | |
| UN 1845 | 9 | Carbon dioxide, solid, also called Dry ice |
| UN 1846 | 8 | Carbon tetrachloride |
| UN 1847 | 8 | Potassium sulfide, hydrated with not less than 30 percent water of crystallization |
| UN 1848 | 8 | Propionic acid |
| UN 1849 | 6.1 | Sodium sulfide, hydrated with not less than 30 percent water |
| UN 1850 | ? | Eradicator, paint, liquid or Eradicator, grease, liquid |
| UN 1851 | 6.1 | Medicine, liquid, toxic, n.o.s. |
| UN 1852 to 1853 | ? | |
| UN 1854 | 4.2 | Barium alloys, pyrophoric |
| UN 1855 | 4.2 | Calcium, pyrophoric or Calcium alloys, pyrophoric |
| UN 1856 | 4.2 | Rags, oily |
| UN 1857 | 4.2 | Textile waste, wet |
| UN 1858 | 2 | Hexafluoropropylene, compressed or Refrigerant gas R 1216 |
| UN 1859 | 2 | Silicon tetrafluoride, compressed |
| UN 1860 | 3 | Vinyl fluoride, inhibited |
| UN 1861 | ? | |
| UN 1862 | 3 | Ethyl crotonate |
| UN 1863 | 3 | Fuel, aviation, turbine engine |
| UN 1864 | ? | Gas drips or Gas drips, hydrocarbon |
| UN 1865 | 3 | n-Propyl nitrate |
| UN 1866 | 3 | Resin solution, flammable |
| UN 1867 | ? | Cigarettes or Self-lighting cigarettes |
| UN 1868 | 4.1 | Decaborane |
| UN 1869 | 4.3 | Magnesium or Magnesium alloys with more than 50 percent magnesium in pellets, turnings, or ribbons |
| UN 1870 | 4.1 | Potassium borohydride |
| UN 1871 | 5.1 | Titanium hydride |
| UN 1872 | 5.1 | Lead dioxide |
| UN 1873 | 5.1 | Perchloric acid with more than 50 percent but not more than 72 percent acid, by mass |
| UN 1874 to 1883 | ? | |
| UN 1884 | 6.1 | Barium oxide |
| UN 1885 | 6.1 | Benzidine |
| UN 1886 | 6.1 | Benzylidene chloride |
| UN 1887 | 6.1 | Bromochloromethane |
| UN 1888 | 6.1 | Chloroform |
| UN 1889 | 6.1 | Cyanogen bromide |
| UN 1890 | ? | |
| UN 1891 | 6.1 | Ethyl bromide |
| UN 1892 | 6.1 | Ethyldichloroarsine |
| UN 1893 | ? | |
| UN 1894 | 6.1 | Phenylmercuric hydroxide |
| UN 1895 | 6.1 | Phenylmercuric nitrate |
| UN 1896 | ? | Resin solution, toxic |
| UN 1897 | 6.1 | Tetrachloroethylene |
| UN 1898 | 8 | Acetyl iodide |
| UN 1899 to 1900 | ? |
n.o.s. = not otherwise specified meaning a collective entry to which substances, mixtures, solutions or articles may be assigned if a) they are not mentioned by name in 3.2 Dangerous Goods List AND b) they exhibit chemical, physical and/or dangerous properties corresponding to the Class, classification code, packing group and the name and description of the n.o.s. entry