File: 950825_0151pgv_91d.txt
Page: 91d
Total Pages: 1

[   (b)(2)   ]                                                    
FEB 91  0935 HRS

4 February 1991

Reference Task OICC 4139, Orange Cloud Assessment

      The SCUD oxidizer Inhibited Fuming Red Nitric Acid (IFRNA) 
could have produced the orange cloud seen by the pilot on 2 Feb.  
IFRNA could release a cloud of mixed oxides of nitrogen.  The 
oxide N2O3 is reddish-brown, which accounts for the color.

(U)   This response has been coordinated with DT-2.
[   (b)(6)    ]


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