-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 UFOIMrlE9aGwhbCFGH9ZjI8fv/q5mNFqKn64JvFn08kgA1pl6v34S0WLbJKcIHfk
 IW1OR+Tv7749X1FiV4aBCg==

<SEC-DOCUMENT>0001243902-07-000230.txt : 20071204
<SEC-HEADER>0001243902-07-000230.hdr.sgml : 20071204
<ACCEPTANCE-DATETIME>20071204095934
ACCESSION NUMBER:		0001243902-07-000230
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20071203
FILED AS OF DATE:		20071204
DATE AS OF CHANGE:		20071204

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ROHM & HAAS CO
		CENTRAL INDEX KEY:			0000084792
		STANDARD INDUSTRIAL CLASSIFICATION:	PLASTICS, MATERIALS, SYNTH RESINS & NONVULCAN ELASTOMERS [2821]
		IRS NUMBER:				231028370
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		100 INDEPENDENCE MALL WEST
		CITY:			PHILADELPHIA
		STATE:			PA
		ZIP:			19106
		BUSINESS PHONE:		2155923000

	MAIL ADDRESS:	
		STREET 1:		100 INDEPENDENCE MALL WEST
		CITY:			PHILADELPHIA
		STATE:			PA
		ZIP:			19106

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ROGERS GARY L
		CENTRAL INDEX KEY:			0001233172

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-03507
		FILM NUMBER:		071282267

	BUSINESS ADDRESS:	
		STREET 1:		GENERAL ELECTRIC CO
		STREET 2:		3135 EASTON TURNPIKE
		CITY:			FAIRFIELD
		STATE:			CT
		ZIP:			06828
		BUSINESS PHONE:		2033732442
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2007-12-03</periodOfReport>

    <issuer>
        <issuerCik>0000084792</issuerCik>
        <issuerName>ROHM &amp; HAAS CO</issuerName>
        <issuerTradingSymbol>ROH</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001233172</rptOwnerCik>
            <rptOwnerName>ROGERS GARY L</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>ROHM AND HAAS COMPANY</rptOwnerStreet1>
            <rptOwnerStreet2>100 INDEPENDENCE MALL WEST</rptOwnerStreet2>
            <rptOwnerCity>PHILADELPHIA</rptOwnerCity>
            <rptOwnerState>PA</rptOwnerState>
            <rptOwnerZipCode>19106</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2007-12-03</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>39.8207</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>54.19</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5871.9337</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Deferred stock shares were granted as dividends on deferred stock shares under the 1997 Non-Employee Directors' Stock Plan and the 2005 Non-Employee Directors' Stock Plan.  Each deferred stock share will be converted to one share of Rohm and Haas Company common stock after the reporting person leaves the Board of Directors.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Cathlene M. Britt on behalf of Gary L. Rogers</signatureName>
        <signatureDate>2007-12-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----