Chemicals Requiring Purchase Approval

List of High Hazard Chemicals
The select high hazard chemicals identified below have been classified as particularly hazardous due to the increased fire, health, and/or reactivity risks and require prior approval for purchasing of new materials, or handling and storage of existing material.
Compound | CAS # | Exempt Quantity |
Anhydrous Ammonia |
7664-41-7 |
None |
Anhydrous Hydrogen Bromide |
10035-10-6 |
None |
Anhydrous Hydrogen Chloride |
7647-01-0 |
None |
Anhydrous Hydrogen Fluoride |
7664-39-3 |
None |
Arsine |
7784-42-1 |
None |
Azide Compounds |
various |
None |
Benzoyl Peroxide |
94-36-0 |
None |
Boron Trichloride |
10294-34-5 |
None |
Boron Trifluoride |
7637-07-2 |
None |
Carbon Monoxide |
630-08-0 |
None |
Chlorine |
7782-50-5 |
None |
Chloropicrin |
76-06-2 |
None |
Cyanide Salts |
various |
None |
Cyanogen |
460-19-5 |
None |
Cyanogen Chloride |
506-77-4 |
None |
Diborane |
19287-45-7 |
None |
Dichloromethane |
75-09-2 |
None |
Dichlorosilane |
4109-96-0 |
None |
Dimethylmercury and Other Organomercury Compounds |
various |
None |
Dinitro Compounds (precursors to TNT) |
various |
None |
Disilane |
1590-87-0 |
None |
Formaldehyde |
50-00-0 |
None |
Fluorine |
7782-41-4 |
None |
Fuming Nitric Acid (>80%) |
7697-37-2 |
None |
Germane |
7782-65-2 |
None |
Hexaethyltetraphosphate |
757-58-4 |
None |
HMX (Octogen) |
2691-41-0 |
None |
Hydrofluoric Acid |
7664-39-3 |
None |
Hydrogen Cyanide |
74-90-8 |
None |
Hydrogen Selenide |
7783-07-5 |
None |
Hydrogen Sulfide |
7783-06-4 |
None |
Mercury |
7439-97-6 |
None |
Nitric Oxide |
10102-43-9 |
None |
Nitrogen Dioxide |
10102-44-0 |
None |
Nitrogen Trioxide |
10102-44-0 |
None |
Nitrogen Tetroxide |
10544-72-6 |
None |
Perchloric Acid |
7601-90-3 |
None |
Phosgene |
75-44-5 |
None |
Phosphine |
7803-51-2 |
None |
Picric Acid |
88-89-1 |
None |
RDX (hexogen) |
121-82-4 |
None |
Silane |
7803-62-5 |
None |
Silicon Tetrachloride |
10026-04-7 |
None |
Sodium-Potassium Alloy |
11135-81-2 |
None |
TNT |
118-96-7 |
None |
Trimethylaluminum |
75-24-1 |
None |
Contact Lab Safety
Email: labsafety@northeastern.edu
Phone: 617.373.2769