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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 r2HpQbcJV0mwwqRQEqGGkg==

<SEC-DOCUMENT>0000904906-08-000002.txt : 20080623
<SEC-HEADER>0000904906-08-000002.hdr.sgml : 20080623
<ACCEPTANCE-DATETIME>20080623115453
ACCESSION NUMBER:		0000904906-08-000002
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20080620
FILED AS OF DATE:		20080623
DATE AS OF CHANGE:		20080623

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NEVADA CHEMICALS INC
		CENTRAL INDEX KEY:			0000356342
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS CHEMICAL PRODUCTS [2890]
		IRS NUMBER:				870351702
		STATE OF INCORPORATION:			UT
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		9149 SO. MONROE PLAZA WAY
		STREET 2:		SUITE B
		CITY:			SANDY
		STATE:			UT
		ZIP:			84070
		BUSINESS PHONE:		8019840228

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MINING SERVICES INTERNATIONAL CORP/
		DATE OF NAME CHANGE:	19941005

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ROCKY MOUNTAIN NATURAL RESOURCES CORP
		DATE OF NAME CHANGE:	19831102

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			DAY JOHN T
		CENTRAL INDEX KEY:			0000904906

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-10634
		FILM NUMBER:		08911535

	BUSINESS ADDRESS:	
		STREET 1:		9149 SOUTH MONROE PLAZA WAY
		STREET 2:		SUITE B
		CITY:			SANDY
		STATE:			UT
		ZIP:			84070
		BUSINESS PHONE:		8019840228

	MAIL ADDRESS:	
		STREET 1:		9149 S. MONROE PLZ WAY
		STREET 2:		SUITE B
		CITY:			SANDY
		STATE:			UT
		ZIP:			84070
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2008-06-20</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000356342</issuerCik>
        <issuerName>NEVADA CHEMICALS INC</issuerName>
        <issuerTradingSymbol>NCEM</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000904906</rptOwnerCik>
            <rptOwnerName>DAY JOHN T</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>9149 S. MONROE PLZ WAY</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE B</rptOwnerStreet2>
            <rptOwnerCity>SANDY</rptOwnerCity>
            <rptOwnerState>UT</rptOwnerState>
            <rptOwnerZipCode>84070</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2008-06-20</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>21000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>8.28</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>529980</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>8.28</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2008-06-20</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>21000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2006-04-03</value>
            </exerciseDate>
            <expirationDate>
                <value>2011-04-03</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>21000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <ownerSignature>
        <signatureName>/s/ John T. Day</signatureName>
        <signatureDate>2008-06-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----