-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
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<SEC-DOCUMENT>0000933430-08-000034.txt : 20080902
<SEC-HEADER>0000933430-08-000034.hdr.sgml : 20080901
<ACCEPTANCE-DATETIME>20080902170508
ACCESSION NUMBER:		0000933430-08-000034
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20080828
FILED AS OF DATE:		20080902
DATE AS OF CHANGE:		20080902

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NANOPHASE TECHNOLOGIES CORPORATION
		CENTRAL INDEX KEY:			0000883107
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS PRIMARY METAL PRODUCTS [3390]
		IRS NUMBER:				363687863
		STATE OF INCORPORATION:			IL
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		453 COMMERCE ST
		CITY:			BURR RIDGE
		STATE:			IL
		ZIP:			60521
		BUSINESS PHONE:		6303231200

	MAIL ADDRESS:	
		STREET 1:		453 COMMERCE STREET
		CITY:			BURR RIDGE
		STATE:			IL
		ZIP:			60521

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			GRACE BROTHERS LTD
		CENTRAL INDEX KEY:			0000931217
		STATE OF INCORPORATION:			IL
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-22333
		FILM NUMBER:		081052022

	BUSINESS ADDRESS:	
		STREET 1:		1560 SHERMAN AVE SUITE 900
		CITY:			EVANSTON
		STATE:			IL
		ZIP:			60201
		BUSINESS PHONE:		8477331230

	MAIL ADDRESS:	
		STREET 1:		1560 SHERMAN AVE SUITE 900
		CITY:			EVANSTON
		STATE:			IL
		ZIP:			60201

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SPURGEON CORP
		CENTRAL INDEX KEY:			0001061060
		STATE OF INCORPORATION:			IL
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-22333
		FILM NUMBER:		081052023

	BUSINESS ADDRESS:	
		STREET 1:		290 S COUNTY FARM RD
		STREET 2:		THIRD FL
		CITY:			WHEATON
		STATE:			IL
		ZIP:			60187
		BUSINESS PHONE:		6305887200

	MAIL ADDRESS:	
		STREET 1:		290 S COUNTY FARM RD
		STREET 2:		THIRD FL
		CITY:			WHEATON
		STATE:			IL
		ZIP:			60187

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			WHITMORE BRADFORD T
		CENTRAL INDEX KEY:			0000933430
		STATE OF INCORPORATION:			IL
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-22333
		FILM NUMBER:		081052024

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		8477331230

	MAIL ADDRESS:	
		STREET 1:		1560 SHERMAN AVE
		STREET 2:		SUITE 900
		CITY:			EVANSTON
		STATE:			IL
		ZIP:			60201
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<SEQUENCE>1
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    <periodOfReport>2008-08-28</periodOfReport>

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        <issuerName>NANOPHASE TECHNOLOGIES CORPORATION</issuerName>
        <issuerTradingSymbol>NANX</issuerTradingSymbol>
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            <rptOwnerName>WHITMORE BRADFORD T</rptOwnerName>
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            <rptOwnerStreet2>SUITE 900</rptOwnerStreet2>
            <rptOwnerCity>EVANSTON</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60201</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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    <reportingOwner>
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            <rptOwnerName>SPURGEON CORP</rptOwnerName>
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        <reportingOwnerAddress>
            <rptOwnerStreet1>290 S COUNTY FARM RD</rptOwnerStreet1>
            <rptOwnerStreet2>THIRD FL</rptOwnerStreet2>
            <rptOwnerCity>WHEATON</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60187</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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            <rptOwnerName>GRACE BROTHERS LTD</rptOwnerName>
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            <rptOwnerStreet2></rptOwnerStreet2>
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            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60201</rptOwnerZipCode>
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    </reportingOwner>

    <nonDerivativeTable>
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            <transactionDate>
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                <transactionCode>P</transactionCode>
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            <transactionTimeliness>
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            <transactionAmounts>
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                <transactionPricePerShare>
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                <transactionAcquiredDisposedCode>
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        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
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            <transactionDate>
                <value>2008-08-28</value>
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            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionTimeliness>
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            </transactionTimeliness>
            <transactionAmounts>
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                </transactionShares>
                <transactionPricePerShare>
                    <value>1.85</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
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                <sharesOwnedFollowingTransaction>
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                    <footnoteId id="F2"/>
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                <directOrIndirectOwnership>
                    <value>I</value>
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        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2008-08-28</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>5700</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>1.87</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
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            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>4782753</value>
                    <footnoteId id="F2"/>
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                <directOrIndirectOwnership>
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        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
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            <transactionDate>
                <value>2008-08-29</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>700</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>1.77</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
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                <sharesOwnedFollowingTransaction>
                    <value>4783453</value>
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            <transactionDate>
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                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionTimeliness>
                <value></value>
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            <transactionAmounts>
                <transactionShares>
                    <value>4600</value>
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                <transactionPricePerShare>
                    <value>1.79</value>
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                <transactionAcquiredDisposedCode>
                    <value>A</value>
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            <transactionDate>
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                <sharesOwnedFollowingTransaction>
                    <value>4789853</value>
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                <value></value>
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                <transactionShares>
                    <value>6500</value>
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                <transactionPricePerShare>
                    <value>1.82</value>
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                    <value>A</value>
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                <sharesOwnedFollowingTransaction>
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                <directOrIndirectOwnership>
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                <value></value>
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                    <value>5300</value>
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                    <value>1.83</value>
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                    <value>A</value>
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    <footnotes>
        <footnote id="F1">As General Partner of Grace Brothers, Ltd. which owns 4,228,841 shares (after purchases through September 2, 2008) and as General Partner of Grace Investments, Ltd. which owns 300,000 shares, Bradford T. Whitmore is an indirect beneficial owner.  As General Partner of Grace Brothers, Ltd. and as General Partner of Grace Investments, Ltd., Spurgeon Corporation is an indirect beneficial owner.</footnote>
        <footnote id="F2">Bradford T. Whitmore directly owns 272,812 shares of common stock.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Bradford T. Whitmore</signatureName>
        <signatureDate>2008-09-02</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Jerald A. Trannel, Vice President</signatureName>
        <signatureDate>2008-09-02</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Bradford T. Whitmore, General Partner</signatureName>
        <signatureDate>2008-09-02</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
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