Linde, LLC

Sustainable Purchasing

Linde, LLC has a strategic contract for bulk liquid nitrogen and liquid helium. This supplier also supports a sustainable environment, consistent with U-M's values.

Purchasing Guidelines

For the purchase of items priced $5,000 or more follow, the equipment ordering procedure. Please see Procedure for Purchasing Equipment for more information.

All purchases: Email a copy of the quote, the HAZARDOUS GAS AUTHORIZATION FORM, and the shortcode to and wait for approval prior to purchase.

Hazardous Gases Program: In order to provide a safe U-M research environment, EHS has instituted a program with U-M Procurement Services which requires approval for specific hazardous gas purchases. Approval must be obtained to purchase the following gases in cylinders larger than a lecture bottle: carbon monoxide, chlorine, fluorine, hydrides (arsine, disilane, diborane, germane, phosphine, and silane), hydrogen, and toxic (NFPA health rating of 3 or 4). Oxygen over 25% also requires approval. Beyond this approval process, all hazardous gases must be used in compliance with NFPA 45 and NFPA 55. Under no circumstance should a researcher purchase more than a 1 year supply of any gas.

Contact EHS for additional information

Ordering Information

Order can be placed over the phone at (800) 262-4273, via fax at (888) 262-3298, or via email at using your shortcode.

PCards are not accepted

Supplier Contact

To order liquid helium: 
Phone: (800) 262-4273
Fax: (888) 262-3298

To order bulk liquid nitrogen contact:
National Scheduling Center
Phone: (800) 232-4726

For billing questions contact:
Nicoletta Dekany
Phone: (908) 508-2403

Product Specialists: 
Ryan Sulek - Liquid Nitrogen
Office phone: (517) 225-9534

David Hull- Helium
Phone: (901) 550-8815


Procurement Contacts

Contract Administrator: 
David Gilbert
Phone: (734)615-9304

Procurement Agent:
Bob Johnson
Phone: (734)764- 2461