Reduced weight decontamination formulation for neutralization of chemical and biological warfare agents
View Patent ↗A reduced weight DF-200 decontamination formulation that is stable under high temperature storage conditions. The formulation can be pre-packed as an all-dry (i.e., no water) or nearly-dry (i.e., minimal water) three-part kit, with make-up water (the fourth part) being added later in the field at the point of use.
1. A decontamination formulation, comprising, by weight percentage the following ingredients:
0.5-3 wt % Potassium Tetraborate Tetrahydrate;
1-6 wt % Potassium Citrate;
0.2-1 wt % Potassium Hydroxide;
2-15 wt % Sodium Percarbonate;
0.1-1 wt % Glycerol Diacetate;
0.5-5 wt % Tetraacetyl Ethylene Diamine;
0-2 wt % Dodecyl Trimethyl Ammonium Chloride;
0-1 wt % Tripropylene Glycol Methyl Ether;
0-1 wt % 1-Dodecanol;
1-6 wt % Sorbitol fines; and
Water (remaining balance);
wherein a combined amount of the potassium tetraborate tetrahydrate ingredient and the potassium citrate ingredient are selected to dissolve the sodium percarbonate ingredient of the water.
2. The decontamination formulation of claim 1 , wherein the ingredients of the formulation are pre-packaged as a four-part kit, comprising all-dry Parts A, B, and C; to be mixed with Part D (water) in the field at the point of use, wherein:
Part A (dry) comprises:
the Potassium Tetraborate Tetrahydrate ingredient,
the Potassium Citrate ingredient, and
the Potassium Hydroxide ingredient;
Part B (dry) comprises:
the Sodium Percarbonate ingredient;
Part C (dry) comprises:
the Glycerol Diacetate ingredient,
the Tetraacetyl Ethylene Diamine ingredient,
the Dodecyl Trimethyl Ammonium Chloride ingredient,
the Tripropylene Glycol Methyl Ether ingredient,
the 1-Dodecanol ingredient, and
the Sorbitol fines ingredient; and
Part D comprises the water ingredient.
3. The decontamination formulation of claim 1 , comprising, by weight percentage:
0.6 wt % Potassium Tetraborate Tetrahydrate;
1.1 wt % Potassium Citrate;
0.2 wt % Potassium Hydroxide;
2.8 wt % Sodium Percarbonate;
0.2 wt % Glycerol Diacetate;
0.9 wt % Tetraacetyl Ethylene Diamine;
0 wt % Dodecyl Trimethyl Ammonium Chloride;
0 wt % Tripropylene Glycol Methyl Ether;
0 wt % 1-Dodecanol;
1.2 wt % Sorbitol fines; and
93 wt % Water.
4. The decontamination formulation of claim 1 , comprising, by weight percentage:
2.6 wt % Potassium Tetraborate Tetrahydrate;
5.3 wt % Potassium Citrate;
0.9 wt % Potassium Hydroxide;
13.2 wt % Sodium Percarbonate;
0.7 wt % Glycerol Diacetate;
3.9 wt % Tetraacetyl Ethylene Diamine;
1.4 wt % Dodecyl Trimethyl Ammonium Chloride;
0.5 wt % Tripropylene Glycol Methyl Ether;
0.3 wt % 1-Dodecanol;
5.3 wt % Sorbitol fines; and
65.8 wt % Water.
5. The decontamination formulation of claim 1 , wherein the pH of the formulation is between 9.6 and 10.1.
6. The decontamination formulation of claim 1 , wherein the ingredients of the formulation are pre-packaged as a four-part kit, comprising all-dry Parts A, B, and C; to be mixed with Part D (water) in the field at the point of use, wherein:
Part A (dry) consists essentially of:
the Potassium Tetraborate Tetrahydrate ingredient,
the Potassium Citrate ingredient, and
the Potassium Hydroxide ingredient;
Part B (dry) consists essentially of:
the Sodium Percarbonate ingredient;
Part C (dry) consists essentially of:
the Glycerol Diacetate ingredient,
the Tetraacetyl Ethylene Diamine ingredient,
the Dodecyl Trimethyl Ammonium Chloride ingredient,
the Tripropylene Glycol Methyl Ether ingredient,
the 1-Dodecanol ingredient, and
the Sorbitol fines ingredient; and
Part D consists essentially of the water ingredient.
7. The decontamination formulation of claim 1 , consisting essentially of, by weight percentage:
0.6 wt % Potassium Tetraborate Tetrahydrate;
1.1 wt % Potassium Citrate;
0.2 wt % Potassium Hydroxide;
2.8 wt % Sodium Percarbonate;
0.2 wt % Glycerol Diacetate;
0.9 wt % Tetraacetyl Ethylene Diamine;
0 wt % Dodecyl Trimethyl Ammonium Chloride;
0 wt % Tripropylene Glycol Methyl Ether;
0 wt % 1-Dodecanol;
1.2 wt % Sorbitol fines; and
93 wt % Water.
8. The decontamination formulation of claim 1 , consisting essentially of, by weight percentage:
2.6 wt % Potassium Tetraborate Tetrahydrate;
5.3 wt % Potassium Citrate;
0.9 wt % Potassium Hydroxide;
13.2 wt % Sodium Percarbonate;
0.7 wt % Glycerol Diacetate;
3.9 wt % Tetraacetyl Ethylene Diamine;
1.4 wt % Dodecyl Trimethyl Ammonium Chloride;
0.5 wt % Tripropylene Glycol Methyl Ether;
0.3 wt % 1-Dodecanol;
5.3 wt % Sorbitol fines; and
65.8 wt % Water.
9. The decontamination formulation of claim 1 , further comprising a sufficient amount of fumed silica or xanthan gum so that the formulation can remain on vertical surfaces or downward horizontal facing surfaces for more than 30 minutes after deployment.
10. The decontamination formulation of claim 9 , wherein the sufficient amount of fumed silica is at least 2 wt %.
11. The decontamination formulation of claim 9 , wherein the sufficient amount of xanthan gum is at least 0.05 wt %.