UNITED STATES

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 12b-25

NOTIFICATION OF LATE FILING

SEC FILE NUMBER: 000-22333

CUSIP NUMBER: 630079101

(Check One): [ ] Form 10-K   [ ] Form 20-F   [X] Form 10-Q   [ ] Form 10-D   [ ] Form N-SAR

For Period Ended:  September 30, 2018

☐ Transition Report on Form 10-K
☐ Transition Report on Form 20-F
☐ Transition Report on Form 11-K
☐ Transition Report on Form 10-Q
☐ Transition Report on Form N-SAR
For the Transition Period Ended: ___________________

If the notification relates to a portion of the filing checked above, identify the Item(s) to which the notification relates:

Nothing in this form shall be construed to imply that the Commission has verified any information contained herein.

PART I -- REGISTRANT INFORMATION

Nanophase Technologies Corporation

Full Name of Registrant

1319 Marquette Drive

Address of Principal Executive Office
(Street and Number)

Romeoville, Illinois 60446

City, State and Zip Code

PART II -- RULES 12b-25(b) AND (c)

If the subject report could not be filed without unreasonable effort or expense and the registrant seeks relief pursuant to Rule 12b-25(b), the following should be completed. (Check box if appropriate)

☒ (a) The reasons described in reasonable detail in Part III of this form could not be eliminated without unreasonable effort or expense;
(b) The subject annual report, semi-annual report, transition report on Form 10-K, Form 20-F,11-K or Form N-SAR, or portion thereof, will be filed on or before the fifteenth calendar day following the prescribed due date; or the subject quarterly report or transition report on Form 10-Q, or portion thereof will be filed on or before the fifth calendar day following the prescribed due date; and
(c) The accountant's statement or other exhibit required by Rule 12b-25(c) has been attached if applicable.

PART III -- NARRATIVE

State below in reasonable detail the reasons why Forms 10-K, 20-F, 11-K, 10-Q, N-SAR, or the transition report portion thereof, could not be filed within the prescribed time period.

The Company is unable to file, without unreasonable effort or expense, its Quarterly Report on Form 10-Q for the period ended September 30, 2018. Additional time is needed for the Company to compile and analyze supporting documentation in order to complete the Form 10-Q.

The Registrant will make every effort to file its Quarterly Report on Form 10-Q for the quarter ended September 30, 2018, as soon as practical before the fifth calendar day following the prescribed due date.

PART IV-- OTHER INFORMATION

(1) Name and telephone number of person to contact in regard to this notification

Jaime Escobar	630	771-6705
(Name)	(Area Code)	(Telephone Number)

(2) Have all other periodic reports required under Section 13 or 15(d) of the Securities Exchange Act of 1934 or Section 30 of the Investment Company Act of 1940 during the preceding 12 months or for such shorter period that the registrant was required to file such report(s) been filed? If answer is no, identify report(s). ☒ Yes ☐ No

(3) Is it anticipated that any significant change in results of operations from the corresponding period for the last fiscal year will be reflected by the earnings statements to be included in the subject report or portion thereof? ☐ Yes ☒ No

If so, attach an explanation of the anticipated change, both narratively and quantitatively, and, if appropriate, state the reasons why a reasonable estimate of the results cannot be made.

Nanophase Technologies Corporation

(Name of Registrant as Specified in Charter)

has caused this notification to be signed on its behalf by the undersigned hereunto duly authorized.

Date:	November 15, 2018
By:	/s/ Jaime Escobar
	Chief Financial Officer