Otto fuel II
- 75 % Propylenglycoldinitrat
- 23 % 2 -nitrodiphenylamine
- 2% dibutyl sebacate
106602-80-6
1.232 kg / L
121 ° C ( decomposition)
130 ° C.
In the fuel Otto 2 is a to seeing as Monergol mixture which is used as fuel in some torpedoes and other weapons. The name comes from the inventor Dr. Otto Reitlinger and has nothing to do with the processes occurring in gasoline engines operations.
Properties
In the red-orange, oily, almost water-insoluble liquid is a mixture of the following chemical compounds: Propylenglycoldinitrat is with 75 % of the main component, 2 -nitrodiphenylamine represented as a stabilizer with 23% in the mixture and 2% dibutyl sebacate is added for desensitization. The CAS number is: 106602-80-6.
The substance is storable and requires no oxidizer for the thermal conversion and energy release, which this fuel is very well suited for applications in the confined space of a submarine. The vapor pressure is so low that poisoning is unlikely to fumes. The energy content is much higher than that of batteries, such as those used in other torpedoes, so the range is extended considerably.
Use
The fuel is used, among other things torpedo in the following types:
- Mark -46 lightweight torpedo,
- Mark -48 torpedo,
- Mark -54 torpedo,
- Spearfish
Except for the Spearfish torpedoes have these piston engines, where there is a swash plate motor, for example, in the case of Mark 48. The fuel is injected in a combustion chamber and ignited ( the outside of the piston machine befindliches component as a rule), the expansion of the hot reaction products are then the pistons (or the turbine of the Spearfish ) used for driving.
Safety
The fuel is poisonous; a recording is possible mainly through the respiratory tract or through the skin. Negative effects on the human body include headache, impaired hand -eye coordination, eye irritation, nausea, and respiratory problems. The combustion process produces, among other highly toxic hydrogen cyanide. Due to the Propylenglycoldinitrats contained in the fuel Otto 2 AEGL values were determined for the mixture. After a noticeable discomfort ( AEGL -1) occurs at a concentration of 0.33 ppm/10 min; AEGL -2 (serious, long-term or fluchtbehindernde effects ) are to be expected from 2 min ppm/10 min, lethal effects ( AEGL -3 ) from 16 ppm/10.