US2136801A - Priming mixture - Google Patents
Priming mixture Download PDFInfo
- Publication number
- US2136801A US2136801A US114641A US11464136A US2136801A US 2136801 A US2136801 A US 2136801A US 114641 A US114641 A US 114641A US 11464136 A US11464136 A US 11464136A US 2136801 A US2136801 A US 2136801A
- Authority
- US
- United States
- Prior art keywords
- percent
- lead
- priming
- nitrate
- barium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000203 mixture Substances 0.000 title description 27
- 230000037452 priming Effects 0.000 title description 25
- IWOUKMZUPDVPGQ-UHFFFAOYSA-N barium nitrate Inorganic materials [Ba+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O IWOUKMZUPDVPGQ-UHFFFAOYSA-N 0.000 description 23
- ACVYVLVWPXVTIT-UHFFFAOYSA-M phosphinate Chemical compound [O-][PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-M 0.000 description 17
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 16
- 150000003839 salts Chemical class 0.000 description 13
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 10
- WETZJIOEDGMBMA-UHFFFAOYSA-L lead styphnate Chemical compound [Pb+2].[O-]C1=C([N+]([O-])=O)C=C([N+]([O-])=O)C([O-])=C1[N+]([O-])=O WETZJIOEDGMBMA-UHFFFAOYSA-L 0.000 description 8
- MHWLNQBTOIYJJP-UHFFFAOYSA-N mercury difulminate Chemical compound [O-][N+]#C[Hg]C#[N+][O-] MHWLNQBTOIYJJP-UHFFFAOYSA-N 0.000 description 8
- 235000010333 potassium nitrate Nutrition 0.000 description 8
- 239000004323 potassium nitrate Substances 0.000 description 8
- RLJMLMKIBZAXJO-UHFFFAOYSA-N lead nitrate Chemical compound [O-][N+](=O)O[Pb]O[N+]([O-])=O RLJMLMKIBZAXJO-UHFFFAOYSA-N 0.000 description 7
- YPMOSINXXHVZIL-UHFFFAOYSA-N sulfanylideneantimony Chemical compound [Sb]=S YPMOSINXXHVZIL-UHFFFAOYSA-N 0.000 description 7
- 239000003999 initiator Substances 0.000 description 6
- 238000000354 decomposition reaction Methods 0.000 description 5
- 239000000446 fuel Substances 0.000 description 5
- 230000009972 noncorrosive effect Effects 0.000 description 5
- KRXGGXFMCVGZFT-UHFFFAOYSA-N [N+](=O)([O-])C=1C(=C(C=CC1)N=[N+]=[N-])[N+](=O)[O-].[K] Chemical compound [N+](=O)([O-])C=1C(=C(C=CC1)N=[N+]=[N-])[N+](=O)[O-].[K] KRXGGXFMCVGZFT-UHFFFAOYSA-N 0.000 description 4
- 229910021346 calcium silicide Inorganic materials 0.000 description 4
- 239000007800 oxidant agent Substances 0.000 description 4
- 229910052788 barium Inorganic materials 0.000 description 3
- 239000005337 ground glass Substances 0.000 description 3
- -1 potassium nitrate Antimony sulphide Lead Chemical compound 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- ACVYVLVWPXVTIT-UHFFFAOYSA-N phosphinic acid Chemical class O[PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-N 0.000 description 2
- VKJKEPKFPUWCAS-UHFFFAOYSA-M potassium chlorate Chemical compound [K+].[O-]Cl(=O)=O VKJKEPKFPUWCAS-UHFFFAOYSA-M 0.000 description 2
- 229940046063 potassium chlorate Drugs 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- LJPPDESLSQOQIO-UHFFFAOYSA-N [Hg].[Pb] Chemical compound [Hg].[Pb] LJPPDESLSQOQIO-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
- C06C7/00—Non-electric detonators; Blasting caps; Primers
-
- 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
- C06B23/007—Ballistic modifiers, burning rate catalysts, burning rate depressing agents, e.g. for gas generating
Definitions
- This invention relates to priming mixtures for small arms ammunition and more particularly to a non-corrosive priming mixture.
- priming mixtures for small arms ammunition have been of the non-corrosive type, that is, the potassiumchlorate formerly used as the oxidizing agent has been-eliminated from such mixtures and other salts used in its place.
- the oxidizers most generally used and the trate, lead nitrate and the double salt of barium and potassium nitrate. While the use of these salts has been an advance in the art in that the corrosive effects of the use of potassium chlorate have been eliminated, the non-corrosive priming mixtures so produced are sluggish on ignition and poor ignition of the propellent powder therefore results.
- hypophosphite To overcome this defect in the non-corrosive priming mixtures, I propose the use of a small amount of a hypophosphite. I have found that the presence of a small percentage of hypophosphites lowers the decomposition point of priming mixtures containing barium nitrate, lead nitrate or the double salt of barium and potassium nitrate. This produces better combustion of the priming mixture and therefore results in better c ignition of the propellent powder. While a number of the hypophosphites will give the desired result, I have found that the use of lead hypophosphite is particularly advantageous in conjunction with oxidizers whose decomposition temperature is above 200 C. I therefore propose to add a small percentage of lead hypophosphite to various noncorrosive priming mixtures in which barium nitrate, lead nitrate or the double salt of barium and potassium nitrate is employed as an oxidizer.
- the formulae given above illustrate the use of lead hypophosphite with various initiators, sensitizers and fuels in combination with difflcultly deco posable oxidizers, such as barium nitrate, lead itrate and the double salt of barium and potassium nitrate.
- the invention is not limited to the particular well known priming ingredients disclosed but is capable of use in connection with other initiators, sensitizers, fuels and difflcultl decomposable oxidizers.
- a priming mixture adapted to ignite a propellent charge comprising an initiator, a fuel, an oxidizing agent and lead hypophosphite.
- a priming mixture adapted to ignite a propellent charge comprising an initiator, a fuel, an oxidizer from the group consisting of barium nitrate, lead nitrate and the double salt of barium and potassium nitrate and lead hypophosphite.
- a priming mixture adapted to ignite a propellent charge comprising mercury fulminate, potassium dinitrophenylazide, the double salt of barium 'and potassium nitrate, antimony sulphide and lead hypophosphite.
- a priming mixture adapted to ignite a propellent charge comprising from 27 to 33 percent mercury fulminate, from 4 to 7 percent potassium dinitrophenylazide, from 32 to 38 percent of the I double salt of barium and potassium nitrate, from 22 to 28 percent antimony sulphide, and
- a priming m xture adapted to ignite a propellent charge comprising substantially 30 percent mercury fulminate, substantially 5 percent potassium dinitrophenylazide, substantially 35 percent of the double salt of barium and potassium nitrate, substantially 25 percent antimony sulphide and substantially 5 percent lead hypophosphite.
- a priming mixture adapted to ignite a propellent charge comprising mercury fulminate, basic lead styphnate, barium nitrate, calcium silicide, antimony sulphide and lead hypophosphite.
- a priming mixture adapted to ignite a propellent charge comprising from 32 to 38 percent mercury fulminate, from 5 to 9 percent basic lead 1 styphnate, from 28 to 32 percent barium nitrate,
- a priming mixture adapted to ignite a propcllent charge comprising substantially 35 percent mercury fulminate, substantially '7 percent basic lead styphnate, substantially 30 percent barium nitrate, substantially 6 percent calcium silicide, substantially 17 percent antimony sulphide and substantially 5 percent lead hypophosphite.
- a priming mixture adapted to ignite a propellent charge comprising lead styphnate, lead nitrate, ground glass and lead hypophosphite.
- a priming mixture adapted to ignite a propellent charge comprising from 37 to 43 percent lead styphnate, from 28 to 32 percent lead nitrate, from 20 to percent ground glass and from 5 to 9 percent lead hypophosphite.
- a priming mixture adapted to ignite a propellent charge comprising substantially 40 percent lead styphnate, substantially percent lead nitrate, substantially 23 percent ground glass and substantially 7 percent lead hypophosphite.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
- Surface Treatment Of Glass (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE424933D BE424933A (en)) | 1936-12-07 | ||
| US114641A US2136801A (en) | 1936-12-07 | 1936-12-07 | Priming mixture |
| GB33885/37A GB495238A (en) | 1936-12-07 | 1937-12-07 | Improvements in explosive priming mixtures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US114641A US2136801A (en) | 1936-12-07 | 1936-12-07 | Priming mixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2136801A true US2136801A (en) | 1938-11-15 |
Family
ID=22356515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US114641A Expired - Lifetime US2136801A (en) | 1936-12-07 | 1936-12-07 | Priming mixture |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2136801A (en)) |
| BE (1) | BE424933A (en)) |
| GB (1) | GB495238A (en)) |
-
0
- BE BE424933D patent/BE424933A/xx unknown
-
1936
- 1936-12-07 US US114641A patent/US2136801A/en not_active Expired - Lifetime
-
1937
- 1937-12-07 GB GB33885/37A patent/GB495238A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE424933A (en)) | |
| GB495238A (en) | 1938-11-09 |
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