US2942965A - Aluminized explosive composition - Google Patents
Aluminized explosive composition Download PDFInfo
- Publication number
- US2942965A US2942965A US753058A US75305847A US2942965A US 2942965 A US2942965 A US 2942965A US 753058 A US753058 A US 753058A US 75305847 A US75305847 A US 75305847A US 2942965 A US2942965 A US 2942965A
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- US
- United States
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- weight
- acid
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- aluminized
- stearoxyacetic
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- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B23/00—Compositions characterised by non-explosive or non-thermic constituents
- C06B23/009—Wetting agents, hydrophobing agents, dehydrating agents, antistatic additives, viscosity improvers, antiagglomerating agents, grinding agents and other additives for working up
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- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B33/00—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
- C06B33/12—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide the material being two or more oxygen-yielding compounds
- C06B33/14—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide the material being two or more oxygen-yielding compounds at least one being an inorganic nitrogen-oxygen salt
Definitions
- This invention relates to improvements in explosive. compositions and more particularly to an aluminized explosive composition which has a reduced tendency to spew or erupt during manufacture or storage.
- aluminized explosive compositions having a reduced tendency to spew or form gas may be prepared by the addition of certain fatty acids' or fatty acid derivatives thereto.
- One compound that has been found particularly useful in this connection is stearoxyacetic acid. Only a small amount of this material is necessary.
- Compounds of this character in the explosive compositions of the Minol type in addition to decreasing the tendency of the mixture to form gas, also increase the pourability of the composition, thus rendering it more easy to handle during the loading of bombs and mines.
- the desiccating compound and the fatty acid derivative in the final mixture cooperate to reduce further the tendency of the composition to gas.
- any desired concentrations of the magnesium compound or other desiccant and the fatty acid derivative may be employed to obtain the desired results.
- the preferred range of these materials is between about 0.2% to 4.0% by weightof the magnesium compound and between about .05 and .50% by weight of the fatty acid derivative, the relative proportions depending upon the amount of water originally present in the aluminized explosive composition.
- a cast composition consisting essentially of about 18 parts by weight of powdered aluminum, about 0.5 part by weight of hydrophilic magnesium nitrate, about 0.05 part by weight of stearoxyacetic acid, and about 82' parts by weight of an explosive containing approximately 40 parts of trinitrotoluene, 21 parts of ammonium nitrate and 21 parts of cyclotrimethylenetrinitramine.
- a cast composition consisting essentially of about 18 parts by weight of powdered aluminum, about 0.5 part by weight of hydrophilic magnesium nitrate, about 0.05 part by weight of stearoxyacetic acid, and about 82 parts byweight of an explosive containing approximately 40 parts of trinitrotoluene.
- acid derivative serves to prevent any segregation of the mixture which may occur in the presence of the desiccant.
- an improved Minol composition may be prepared containing 3% by weight of magnesium nitrate monohydrate and about .15 of stearoxyacetic acid, the basic Minol composition comprising ammonium nitrate, TNT and aluminum powderin the weight ratio 2:2: 1 respectively.
- a Torpex-type explosive having the following com- 3.
- a cast composition consisting essentially of about 18 parts by weight of powdered aluminum, about 0.2-4.0% by weight of hydrophilic magnesium nitrate, about 0.05 to 0.50% by weight of a member selected from the group consisting of stearoxyacetic acid, stearic acid, palmitic acid and oleic acid, and about 82 parts by weight of an explosive containing approximately 40 parts of trinitrotoluene.
- a cast composition consisting essentially of about 18 parts by weight of powdered aluminum, about 0.2-4.0% by weight of hydrophilic magnesium nitrate, about 0.05 to 0.50% by weight of stearoxyacetic acid, and about 82 parts by weight of an explosive containing approximately 40 parts ,of trinitrotoluene.
- a cast composition consisting essentially of ammonium nitrate, trinitrotoluene and powdered aluminum in the weight ratio'2z2z 1, respectively, and containing about 02-40% by weight of magnesium nitrate and about 0.05-0.50% by weight of a member selected from the group consisting of stearoxyacetic acid, stearic acid, palmitic acid and oleic acid. 7
- a cast composition consistingessentially of ammonium nitrate, trinitrotoluene and powdered aluminum in the weight ratio 2:2: 1, respectively, and containing about 0.24.0% by weight of magnesium nitrate and about 0.05-0.50% by weight of stearoxyacetic acid.
- a cast composition consisting essentially of ammonium nitrate, trinitrotoluene and powdered aluminum in the weight ratio 2:2: 1, respectively, and containing about 3% by weight of magnesium nitrate monohydrateand abaut 0.15% stearoxyacetic acid.
- a cast composition consisting essentially of about 18 parts by weight of powdered aluminum, about 024.0%
- a desiccant selected from the group consisting of magnesium'nitrate and calcium chloride, about 0.05-050% by weight of a member selected from the group consisting of stearoxyacetic acid, stearic acid, palmitic acid, and oleic acid, and about 82 parts by weight of an explosive containing approximately 40 parts' of trinitrotoluene.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Description
;ALUMINIZEDEXPLQSIYE 'QOMIOSITION Frank H. Westheimer, Chicago, 11]., and John W. Dawson, Philadelphia, Pa., assignors, by mesne assignments, to the United States of America as represented by the Secretary of the Navy No Drawing. Filed June 6, 1947, 'Ser. No. 753,058 8'Claims. (Cl. 52-6) This invention relates to improvements in explosive. compositions and more particularly to an aluminized explosive composition which has a reduced tendency to spew or erupt during manufacture or storage.
It has been observed that aluminized compositions, f
example, those of the Minol type comprising ammonium nitrate, trinitrotoluene, and aluminum powder, have a tendency to evolve gas during manufacture or storage. This is an undesirable property and is thought to be related to the amount of water present in or accumulated by the aluminized composition during manufacture. In order to reduce this evolution of gas it has been proposed to dry the composition carefully. However, the drying process is difiicult and expensive. I
In accordance with one embodiment of this invention it has been found that aluminized explosive compositions having a reduced tendency to spew or form gas may be prepared by the addition of certain fatty acids' or fatty acid derivatives thereto. One compound that has been found particularly useful in this connection is stearoxyacetic acid. Only a small amount of this material is necessary. Compounds of this character in the explosive compositions of the Minol type, in addition to decreasing the tendency of the mixture to form gas, also increase the pourability of the composition, thus rendering it more easy to handle during the loading of bombs and mines.
-. The desiccating compound and the fatty acid derivative in the final mixture cooperate to reduce further the tendency of the composition to gas.
Additionally, the fatty retreated June-28, rsao "Ice where RDX denotes the compound cyclotrimethylenetrinitramine,
: acetic acid.
It will be apparent from the above that any desired concentrations of the magnesium compound or other desiccant and the fatty acid derivative may be employed to obtain the desired results. However, the preferred range of these materials is between about 0.2% to 4.0% by weightof the magnesium compound and between about .05 and .50% by weight of the fatty acid derivative, the relative proportions depending upon the amount of water originally present in the aluminized explosive composition.
We claim: v
1. A cast composition consisting essentially of about 18 parts by weight of powdered aluminum, about 0.5 part by weight of hydrophilic magnesium nitrate, about 0.05 part by weight of stearoxyacetic acid, and about 82' parts by weight of an explosive containing approximately 40 parts of trinitrotoluene, 21 parts of ammonium nitrate and 21 parts of cyclotrimethylenetrinitramine.
2. A cast composition consisting essentially of about 18 parts by weight of powdered aluminum, about 0.5 part by weight of hydrophilic magnesium nitrate, about 0.05 part by weight of stearoxyacetic acid, and about 82 parts byweight of an explosive containing approximately 40 parts of trinitrotoluene.
acid derivative serves to prevent any segregation of the mixture which may occur in the presence of the desiccant.
In accordance with one embodiment of this invention, an improved Minol composition may be prepared containing 3% by weight of magnesium nitrate monohydrate and about .15 of stearoxyacetic acid, the basic Minol composition comprising ammonium nitrate, TNT and aluminum powderin the weight ratio 2:2: 1 respectively.
' It was found that this mixture, although initially containing about .7% water, was as stable as a standard Minol composition whichhad been previously subjected to a careful drying operation. By the addition of the magnesium compound and the stearoxyacetic acid, satisfac torilystabilized Minol may be obtained even though the amount of water in the original Minol is initially as high as 1.2%. a
In accordance with another embodiment of the invention, a Torpex-type explosive having the following com- 3. A cast composition consisting essentially of about 18 parts by weight of powdered aluminum, about 0.2-4.0% by weight of hydrophilic magnesium nitrate, about 0.05 to 0.50% by weight of a member selected from the group consisting of stearoxyacetic acid, stearic acid, palmitic acid and oleic acid, and about 82 parts by weight of an explosive containing approximately 40 parts of trinitrotoluene.
4. A cast composition consisting essentially of about 18 parts by weight of powdered aluminum, about 0.2-4.0% by weight of hydrophilic magnesium nitrate, about 0.05 to 0.50% by weight of stearoxyacetic acid, and about 82 parts by weight of an explosive containing approximately 40 parts ,of trinitrotoluene.
5. A cast composition consisting essentially of ammonium nitrate, trinitrotoluene and powdered aluminum in the weight ratio'2z2z 1, respectively, and containing about 02-40% by weight of magnesium nitrate and about 0.05-0.50% by weight of a member selected from the group consisting of stearoxyacetic acid, stearic acid, palmitic acid and oleic acid. 7
6. A cast composition consistingessentially of ammonium nitrate, trinitrotoluene and powdered aluminum in the weight ratio 2:2: 1, respectively, and containing about 0.24.0% by weight of magnesium nitrate and about 0.05-0.50% by weight of stearoxyacetic acid.
7 A cast composition consisting essentially of ammonium nitrate, trinitrotoluene and powdered aluminum in the weight ratio 2:2: 1, respectively, and containing about 3% by weight of magnesium nitrate monohydrateand abaut 0.15% stearoxyacetic acid.
8. A cast composition consisting essentially of about 18 parts by weight of powdered aluminum, about 024.0%
by weight of a desiccant selected from the group consisting of magnesium'nitrate and calcium chloride, about 0.05-050% by weight of a member selected from the group consisting of stearoxyacetic acid, stearic acid, palmitic acid, and oleic acid, and about 82 parts by weight of an explosive containing approximately 40 parts' of trinitrotoluene. v
References Cited in the file of this patent UNITED STATES PATENTS .4s7,0s0 Skoglund N09. 29, 1892 1,307,495 Hill et a1. June 24, 1919 4. Stoops Oct. 27; 1931 Crater Sept. 22, 1936 Bagley Feb. 13, 1945 FOREIGN PATENTS Great Britain"; 1893 Great Britain 1910 Great Britain 1913
Claims (1)
- 3. A CAST COMPOSITION CONSISTING ESSENTIALLY OF ABOUT 18 PARTS BY WEIGHT OF POWDERED ALUMINUM, ABOUT 0.2-4.0% BY WEIGHT OF HYDROPHILIC MAGNESIUM NITRATE, ABOUT 0.05 TO 0.50% BY WEIGHT OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF STEAROXYACETIC ACID, STEARIC ACID, PALMITIC ACID AND OLEIC ACID, AND ABOUT 82 PARTS BY WEIGHT OF AN EXPLOSIVE CONTAINING APPROXIMATELY 40 PARTS OF TRINITROTOLUENE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US753058A US2942965A (en) | 1947-06-06 | 1947-06-06 | Aluminized explosive composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US753058A US2942965A (en) | 1947-06-06 | 1947-06-06 | Aluminized explosive composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2942965A true US2942965A (en) | 1960-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US753058A Expired - Lifetime US2942965A (en) | 1947-06-06 | 1947-06-06 | Aluminized explosive composition |
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| Country | Link |
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| US (1) | US2942965A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3369944A (en) * | 1963-06-12 | 1968-02-20 | Dynamit Nobel Ag Patentabteilu | Thickened aqueous detonator composition containing a brisant explosive |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US487080A (en) * | 1892-11-29 | Jean vilhelm skogllpsd | ||
| GB189311073A (en) * | 1893-06-06 | 1893-07-08 | Gustav Gillischewski | Improvements in Pyrotechnical Compositions or Fireworks. |
| GB191022030A (en) * | 1909-09-29 | 1911-04-27 | Manuel Antonio Gomes Himalaya | Improvements in the Manufacture of Safety Explosives. |
| GB191329507A (en) * | 1913-12-22 | 1915-03-11 | Pala Companhia Himalayite | Improvements in Explosive Mixtures containing Chlorates or Perchlorates. |
| US1307495A (en) * | 1919-06-24 | Boy linden hill and archibald j | ||
| US1828788A (en) * | 1927-12-08 | 1931-10-27 | Hercules Powder Co Ltd | Explosive |
| US2055403A (en) * | 1934-04-10 | 1936-09-22 | Hercules Powder Co Ltd | Explosive |
| US2369517A (en) * | 1942-03-16 | 1945-02-13 | Dev Engineering Company | Explosive material |
-
1947
- 1947-06-06 US US753058A patent/US2942965A/en not_active Expired - Lifetime
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US487080A (en) * | 1892-11-29 | Jean vilhelm skogllpsd | ||
| US1307495A (en) * | 1919-06-24 | Boy linden hill and archibald j | ||
| GB189311073A (en) * | 1893-06-06 | 1893-07-08 | Gustav Gillischewski | Improvements in Pyrotechnical Compositions or Fireworks. |
| GB191022030A (en) * | 1909-09-29 | 1911-04-27 | Manuel Antonio Gomes Himalaya | Improvements in the Manufacture of Safety Explosives. |
| GB191329507A (en) * | 1913-12-22 | 1915-03-11 | Pala Companhia Himalayite | Improvements in Explosive Mixtures containing Chlorates or Perchlorates. |
| US1828788A (en) * | 1927-12-08 | 1931-10-27 | Hercules Powder Co Ltd | Explosive |
| US2055403A (en) * | 1934-04-10 | 1936-09-22 | Hercules Powder Co Ltd | Explosive |
| US2369517A (en) * | 1942-03-16 | 1945-02-13 | Dev Engineering Company | Explosive material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3369944A (en) * | 1963-06-12 | 1968-02-20 | Dynamit Nobel Ag Patentabteilu | Thickened aqueous detonator composition containing a brisant explosive |
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