FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * RAPPAPORT LINDA F   2. Issuer Name and Ticker or Trading Symbol LSB INDUSTRIES INC [LXU] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) P O BOX 705 3. Date of Earliest Transaction (Month/Day/Year) 03/13/2013 (Street) OKLAHOMA CITY, OK 73102 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock               30,000 D   Common Stock               14,578 I As Trustee (7) Common Stock               81,443 I By Spouse (1) Common Stock               37,975 (4) I By GFLLC (2) Common STock 03/13/2013   S   5,780 D $ 39.42 (8) 299,429 (3) (4) I By SBL (3)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Series B Preferred

(5)

(5)

(5)

Common Stock

17,061

512 (4)

I

By GFLLC (2)

Series B Preferred

(5)

(5)

(5)

Common Stock

90,666

2,720 (4)

I

B SBL (3)

Series D Preferred

(6)

(6)

(6)

Common nStock

42,500

170,000 (4)

I

By SBL (3)

Series D Preferred

(6)

(6)

(6)

Common Stock

5,296

21,183 (4)

I

By GFLLC (2)

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
RAPPAPORT LINDA F P O BOX 705 OKLAHOMA CITY, OK 73102		X

Signatures

Jack E. Golsen, Attorney-In-Fact		03/15/2013
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	These shares are owned of record by the reporting person's spouse. The reporting person disclaims beneficial ownership of these shares, and this report shall not be deemed an admission that the reporting person is the beneficial owner of these shares for any purpose, including Section 16 of the Securities Exchange Act of 1934, as amended.
(2)	Golsen Family, L.L.C. ("GFLLC") is owned by Jack E. Golsen, chief executive officer and chairman of the board of the Issuer, through his revocable trust (43.516%) and another trust (43.516%), his sons, Barry H. Golsen, a director and the president of the Issuer (4.323%), and Steven J. Golsen, a director of the Issuer and an executive officer of a subsidiary of the Issuer (4.323%), and his daughter, the reporting person (4.323%). The Issuer securities reported as beneficially owned by GFLLC include the shares beneficially owned by GFLLC through SBL (see footnote 3). The reporting person disclaims beneficial ownership of the Issuer securities held by GFLLC, except to the extent of her pecuniary interest therein.
(3)	SBL, LLC ("SBL") is owned by GFLLC (49%), Barry Golsen (17%), Steven Golsen (17%), and Linda Rappaport (17%). Golsen Petroleum Corporation ("GPC") is a wholly owned subsidiary of SBL. The amount shown in Table I includes 1,477,399 shares owned by SBL and 283,955 shares owned directly by GPC; 200,000 of these shares have been pledged as collateral. The amount shown in Table II includes 12,000 shares of the Issuer's Series B Preferred owned by SBL and 4,000 shares of the Issuer's Series B Preferred owned directly by GPC. Voting and dispositive power over the securities held by SBL and GPC is shared by Jack E. Golsen, who is the chief executive officer and chairman of the board of the Issuer, and Barry Golsen, a director and the president of the Issuer.
(4)	The amount of Issuer securities shown as beneficially owned by the reporting person is based on the reporting person's proportionate ownership in (1) GFLLC, which is comprised of (a) GFLLC's direct ownership of Issuer securities and (b) GFLLC's indirect ownership of Issuer securities through its proportionate ownership in SBL, and (2) SBL, which is comprised of (a) SBL's direct ownership of Issuer securities and (b) SBL's indirect ownership of Issuer securities through GPC. The reporting person disclaims beneficial ownership of the Issuer securities held by GFLLC, except to the extent of her pecuniary interest therein.
(5)	Each share of the Issuer's Series "B" 12% Cumulative Preferred Stock is convertible, at the option of the holder into 33.3333 shares of the Issuer's common stock. Each share is convertible as long as such is outstanding.
(6)	The Issuer's Series "D" 6% Cumulative, Convertible Class C Preferred Stock is convertible at the option of the holder into the Issuer's common stock at the rate of four shares of Preferred "D" for one share of common stock. Each share is convertible as long as such is outstanding.
(7)	These shares are owned of record by the reporting person through her trust, the Linda F. Rappaport 2011 Trust, of which the reporting person is settlor and trustee, with voting and dispositive power over the securities held in the trust.
(8)	On March 13, 2013, SBL sold a total of 34,000 shares of the Issuer's common stock at the weighted average price per share of $39.42, which is based on multiple prices ranging from $39.24 to $39.68. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range.

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