CN85101596B - Preparation of sulphurless fregrant firework powder - Google Patents
Preparation of sulphurless fregrant firework powder Download PDFInfo
- Publication number
- CN85101596B CN85101596B CN85101596A CN85101596A CN85101596B CN 85101596 B CN85101596 B CN 85101596B CN 85101596 A CN85101596 A CN 85101596A CN 85101596 A CN85101596 A CN 85101596A CN 85101596 B CN85101596 B CN 85101596B
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- CN
- China
- Prior art keywords
- firecracker
- perfume
- powder
- sulfur
- gunpowder
- 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
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- 239000000843 powder Substances 0.000 title claims abstract description 33
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 16
- 239000011593 sulfur Substances 0.000 claims abstract description 16
- 239000002023 wood Substances 0.000 claims abstract description 10
- 239000003721 gunpowder Substances 0.000 claims description 17
- 239000004411 aluminium Substances 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- VKJKEPKFPUWCAS-UHFFFAOYSA-M potassium chlorate Chemical compound [K+].[O-]Cl(=O)=O VKJKEPKFPUWCAS-UHFFFAOYSA-M 0.000 claims description 5
- YPMOSINXXHVZIL-UHFFFAOYSA-N sulfanylideneantimony Chemical compound [Sb]=S YPMOSINXXHVZIL-UHFFFAOYSA-N 0.000 claims description 5
- XNKFCDGEFCOQOM-UHFFFAOYSA-N 1,2-dinitronaphthalene Chemical compound C1=CC=CC2=C([N+]([O-])=O)C([N+](=O)[O-])=CC=C21 XNKFCDGEFCOQOM-UHFFFAOYSA-N 0.000 claims description 4
- 235000013311 vegetables Nutrition 0.000 claims description 4
- 235000013599 spices Nutrition 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 2
- 239000002304 perfume Substances 0.000 abstract 8
- 238000003915 air pollution Methods 0.000 abstract 1
- 239000003610 charcoal Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 239000003814 drug Substances 0.000 description 20
- 238000009835 boiling Methods 0.000 description 16
- 229940079593 drug Drugs 0.000 description 16
- 239000000123 paper Substances 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 230000035945 sensitivity Effects 0.000 description 6
- 239000003205 fragrance Substances 0.000 description 5
- 239000005864 Sulphur Substances 0.000 description 4
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 description 2
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 239000004323 potassium nitrate Substances 0.000 description 2
- 235000010333 potassium nitrate Nutrition 0.000 description 2
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 101100175487 Glycine max CG-1 gene Proteins 0.000 description 1
- 235000010254 Jasminum officinale Nutrition 0.000 description 1
- 240000005385 Jasminum sambac Species 0.000 description 1
- 241000233855 Orchidaceae Species 0.000 description 1
- 244000242564 Osmanthus fragrans Species 0.000 description 1
- 235000019083 Osmanthus fragrans Nutrition 0.000 description 1
- 241000220317 Rosa Species 0.000 description 1
- 240000000513 Santalum album Species 0.000 description 1
- 235000008632 Santalum album Nutrition 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- ZMZDMBWJUHKJPS-UHFFFAOYSA-M Thiocyanate anion Chemical compound [S-]C#N ZMZDMBWJUHKJPS-UHFFFAOYSA-M 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- IRERQBUNZFJFGC-UHFFFAOYSA-L azure blue Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[S-]S[S-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] IRERQBUNZFJFGC-UHFFFAOYSA-L 0.000 description 1
- OOULUYZFLXDWDQ-UHFFFAOYSA-L barium perchlorate Chemical compound [Ba+2].[O-]Cl(=O)(=O)=O.[O-]Cl(=O)(=O)=O OOULUYZFLXDWDQ-UHFFFAOYSA-L 0.000 description 1
- 159000000009 barium salts Chemical class 0.000 description 1
- 239000000038 blue colorant Substances 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- AQMRBJNRFUQADD-UHFFFAOYSA-N copper(I) sulfide Chemical compound [S-2].[Cu+].[Cu+] AQMRBJNRFUQADD-UHFFFAOYSA-N 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000004455 differential thermal analysis Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 239000011086 glassine Substances 0.000 description 1
- ZMZDMBWJUHKJPS-UHFFFAOYSA-N hydrogen thiocyanate Natural products SC#N ZMZDMBWJUHKJPS-UHFFFAOYSA-N 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000001535 kindling effect Effects 0.000 description 1
- 229910052667 lazurite Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000013558 reference substance Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- -1 sodium aluminum fluoride Chemical compound 0.000 description 1
- 235000013024 sodium fluoride Nutrition 0.000 description 1
- 239000011775 sodium fluoride Substances 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- FRTABACCYANHFP-UHFFFAOYSA-L strontium chlorate Chemical compound [Sr+2].[O-]Cl(=O)=O.[O-]Cl(=O)=O FRTABACCYANHFP-UHFFFAOYSA-L 0.000 description 1
- 229910001631 strontium chloride Inorganic materials 0.000 description 1
- AHBGXTDRMVNFER-UHFFFAOYSA-L strontium dichloride Chemical compound [Cl-].[Cl-].[Sr+2] AHBGXTDRMVNFER-UHFFFAOYSA-L 0.000 description 1
- FVRNDBHWWSPNOM-UHFFFAOYSA-L strontium fluoride Chemical compound [F-].[F-].[Sr+2] FVRNDBHWWSPNOM-UHFFFAOYSA-L 0.000 description 1
- 229910001637 strontium fluoride Inorganic materials 0.000 description 1
- KQAGKTURZUKUCH-UHFFFAOYSA-L strontium oxalate Chemical compound [Sr+2].[O-]C(=O)C([O-])=O KQAGKTURZUKUCH-UHFFFAOYSA-L 0.000 description 1
- 159000000008 strontium salts Chemical class 0.000 description 1
- 210000001835 viscera Anatomy 0.000 description 1
- 239000001060 yellow colorant Substances 0.000 description 1
Landscapes
- Cosmetics (AREA)
- Fats And Perfumes (AREA)
Abstract
The present invention relates to the manufacture of non-sulfur perfume firecrackers. The present invention relates to a manufacture method for entertainment articles. The present invention replaces sulfur and charcoal powder in a traditional formula of firecracker powder with perfume wood powder as combustible substances, perfumes and passivators; other passivators are incorporated at a proper amount to greatly improve the safety of the firecrackers. When set off, the non-sulfur perfume firecrackers has no sulfur smell, no air pollution and has perfume; the broken paper pieces can maintain perfume for 4 to 5 days to perfume yards. The non-sulfur perfume firecracker is a novel and popular joyous entertainment article.
Description
The present invention relates to a kind of non-sulfur aromatic firecracker gunpowder.
Firecracker is traditional articles for use of China's folk festival amusement, also is the time-honored traditional arts and crafts of China, liked by domestic and international broad masses.The main raw material black powder of the gunpowder of past traditional mode of production firecracker is to mix by a certain percentage behind the porphyrize respectively with saltpetre (oxygenant), powdered carbon (combustiblesubstance), sulphur (combustion-supporting material, tackiness agent).For the sound and the shredded paper effect that strengthens firecracker, prior art is to change the oxygenant in the powder composition into Potcrate by saltpetre, mix antimony sulfide and aluminium powder simultaneously, (see " manufacturing process of firecracker and fireworks ", light industry press, 1974) but adopt firecracker danger in producing, transport and using of this gunpowder recipe bigger.Owing to can generate gases such as hydrogen sulfide, sulfurous gas after black powder fires, so all can produce one undesirable nose gas of choking after setting off with the firecracker of traditional method manufacturing.For a long time, people wish to produce a kind of firecracker that does not have unhappy smell, way is to mix a certain amount of essence in cracker powder, make and discharge fragrance when firing to cover the discomfort of sulphur smoke of gunpowder smell, owing to fail fundamentally by eliminating the root-sulfur component that produces sulphur smoke of gunpowder smell in the gunpowder recipe, so its effect is limited.
The objective of the invention is to make the reform of essence, from gunpowder, cancel sulfur component from aspects such as cracker powder prescriptions.Measure of the present invention is cancellation sulphur and a powdered carbon in cracker powder, and adopts the incense wood powder to be used as combustiblesubstance, spices and passivator.With Potcrate is oxygenant, mixes with antimony sulfide and aluminium powder, to improve the explosive power of firecracker.And in gunpowder, mix a certain amount of vegetables oil, dinitronaphthalene to improve the passivation degree of cracker powder, make firecracker safer when producing, transporting and using.
The incense wood powder that uses in the cracker powder of the present invention is a wood powder, and makes an amount of essence of its absorption, just can make firecracker emit the aromatic odour that the people is liked when setting off.Wood powder must grind by 100 mesh sieve holes, 40～60 ℃ of oven dry, adds essence then and carefully mixes thoroughly, again by 40 mesh sieve holes.The fragrance that discharges when setting off for the firecracker that strengthens gunpowder manufacturing of the present invention and make the broken lasting of paper makes around the space of front yard full of fragrance to increase celebrating atmosphere.The long essence of coating fragrance remaining time becomes fragrant paper web, and encapsulates with glassine paper on the paper web of firecracker.The essence that gunpowder and paper web coating are used is jasmine type essence, rose type essence, white orchid type essence, sandalwood type essence, sweet osmanthus type essence etc.Sound, light, look net effect in order to strengthen firecracker make life more colorful, add coloured luminous agent in cracker powder.Yellow colorants adopts sodium salt (as Sodium Fluoride, sodium aluminum fluoride, Sodium Silicofluoride, sodium bicarbonate, borax), and red stain adopts strontium salt (as strontium oxalate, lazurite, strontium fluoride, strontium chloride, strontium chlorate).Green colourant adopts barium salt (as barium oxide, barium perchlorate, barium carbonate), and blue colorant adopts mantoquita (as mineral blue, cuprous sulfide, cupric thiocyanide, metallic copper).
Gunpowder recipe of the present invention is:
Potcrate 55～70%
Aluminium powder 3～18%
Antimony sulfide 15～24%
Incense wood powder 4～15%
Vegetables oil 1～3%
Dinitronaphthalene 1～2%
Firecracker paper web coating spices is:
Essence 5～10%
Ester class 50～70%
Ethanol 20～40%
List in table 1～6 respectively with the non-sulfur aromatic firecracker of gunpowder making of the present invention and the chemistry and the physicals of common firecracker.
The test of table 1 cracker powder differential thermal analysis
| The firecracker kind | Decomposition temperature | Kindling temperature |
| 84.14.27 fragrant roasting and boiling as two means of processing crude drugs | ２９４.８℃ | ３１２.６℃ |
| 84.12.18 common firecracker medicine | １８８℃ | ２４１.４℃ |
| 81.1 fragrant roasting and boiling as two means of processing crude drugs | ２８５.５℃ | ３１５.５℃ |
| 81.1 common firecracker medicine | ２０４.８℃ | ２４９.３℃ |
Annotate: sample size 10mg.The reference substance aluminum oxide.
Table 2 cracker powder sensitivity test
| The firecracker kind | Flame height (cm) | |
| Burning | Do not fire | |
| 84.14.27 fragrant roasting and boiling as two means of processing crude drugs | ６ | ７ |
| 84.12.18 common firecracker medicine | １６ | １７ |
| 81.1 fragrant roasting and boiling as two means of processing crude drugs | ６ | ７ |
| 81.1 common firecracker medicine | １３ | １４ |
Annotate: 1. instrument is a HGY-1 type flame sensitivity instrument.
2. non-combustibility test is tested non-combustible height with continuous five times.
The shelf test of table 3 cracker powder high temperature
| The firecracker kind | Storage temperature (℃) | Test-results |
| 84.14.27 fragrant roasting and boiling as two means of processing crude drugs | ６８-７６ | Do not fire |
| 84.12.18 common roasting and boiling as two means of processing crude drugs | ６３-７３ | Do not fire |
| 81.1 fragrant roasting and boiling as two means of processing crude drugs | ６８-７６ | Do not fire |
| 81.1 common roasting and boiling as two means of processing crude drugs | ６８-７６ | Do not fire |
Annotate: 1. instrument: explosion-proof tube sealing electric furnace.
2. every kind of gunpowder is put four samples simultaneously, each samples weighed 50mg.
The test of table 4 cracker powder friction sensitivity
| The firecracker kind | Blast percentage ratio (%) |
| 84.14.27 fragrant roasting and boiling as two means of processing crude drugs | ５６ |
| 84.12.18 common roasting and boiling as two means of processing crude drugs | ６４ |
| 81.1 fragrant roasting and boiling as two means of processing crude drugs | ４０ |
| 81.1 common roasting and boiling as two means of processing crude drugs | ８８ |
Annotate: 1. instrument is a MGY-1 type friction sensitivity instrument.
2. pendulum weighs 2kg, 50 ° of pivot angles, pressure 3kg/cm
2;
3. blast percentage ratio is to do the experiment statistics number continuously 25 times.
The test of table 5 cracker powder mechanical impacting sensitivity
| The firecracker kind | Blast percentage (%) |
| 84.14.27 fragrant roasting and boiling as two means of processing crude drugs | ２４ |
| 84.12.18 common roasting and boiling as two means of processing crude drugs | ９２ |
| 81.1 fragrant roasting and boiling as two means of processing crude drugs | ９０ |
| 81.1 common roasting and boiling as two means of processing crude drugs | ９６ |
Annotate: 1. instrument is a CGY-1 type mechanical impacting sensitivity instrument.
2. test conditions: the heavy 0.8kg of hammer, height 10cm, sample size 25mg.
3. do 25 experiments continuously, statistics exploding and firing percentage.
Table 6 firecracker is seted off the analysis of gas main component
| The mensuration project | Concentration (mg/M ３） | State health standards | |
| Fragrant big gun | Common big gun | （ｍｇ／Ｍ ３） | |
| Plumbous | ０.０５５ | ０.０９５ | ０.０５ |
| Arsenic | ０.００６ | ０.００６ | ０.３ |
| Hydrogen sulfide | ０.０８１ | ０.３５ | １０ |
| Sulfurous gas | ３.７３ | ４８.８ | １５ |
| Oxynitride | ０.０６ | ０.０７ | ５ |
| Methyl alcohol | Do not detect | ５０ | |
| Benzene | Do not detect | ４０ | |
| Toluene | Do not detect | １００ | |
| Dimethylbenzene | Do not detect | １００ | |
| Similar phenyl-hexachloride material | ０.００４ | ０.１ | |
| Similar pp '-DDE material | ０.０１４ | No hygienic standard | |
| ｏｐ’－ＤＤＥ’ｏｐ’－ＤＤＴ | Do not detect | ||
| ｐｐ’－ＤＤＤ’ｐｐ’－ＤＤＴ | Do not detect | ||
Can learn that from table 1 to table 5 security of the non-sulfur aromatic firecracker of gunpowder manufacturing of the present invention is better than the common firecracker of existing production.As known from Table 6, when non-sulfur aromatic firecracker is seted off, can not produce sulfur smoke flavor, discharge gas and meet state health standards, no atmospheric pollution, harmless.And after setting off, making fragrant firecrackers emits a burst of fragrance, the popular feeling of oozing internal organs, and the broken energy of paper lasting 4～5 days makes the people relaxed and joyful.Owing to can utilize the production unit of common firecracker to make the non-sulfur aromatic firecracker that gunpowder of the present invention is made, help the manufacturing process that general factory promotes the use of non-sulfur aromatic firecracker.
Claims (8)
1, a kind of non-sulfur aromatic firecracker gunpowder is characterized in that gunpowder is made up of Potcrate, antimony sulfide, aluminium powder, incense wood powder, vegetables oil, dinitronaphthalene, and its proportioning is:
Potcrate 55～70%
Aluminium powder 3～18%
Antimony sulfide 15～24%
Incense wood powder 4～15%
Vegetables oil 1～3%
Dinitronaphthalene 1～2%
2, cracker powder according to claim 1 is characterized in that the incense wood powder is a wood powder, grinds the back by 100 mesh sieve holes, 40～60 ℃ of oven dry, adds spices then and carefully mixes thoroughly, after 40 mesh sieves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85101596A CN85101596B (en) | 1985-04-01 | 1985-04-01 | Preparation of sulphurless fregrant firework powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN85101596A CN85101596B (en) | 1985-04-01 | 1985-04-01 | Preparation of sulphurless fregrant firework powder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85101596B true CN85101596B (en) | 1986-04-10 |
| CN85101596A CN85101596A (en) | 1986-04-10 |
Family
ID=4791926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85101596A Expired CN85101596B (en) | 1985-04-01 | 1985-04-01 | Preparation of sulphurless fregrant firework powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN85101596B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103497077A (en) * | 2013-09-21 | 2014-01-08 | 安徽省无为县花炮总厂 | Formula for colorful fireworks |
| CN103497080A (en) * | 2013-09-21 | 2014-01-08 | 安徽省无为县花炮总厂 | Formula of firecracker |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19901988A1 (en) * | 1999-01-20 | 2000-08-03 | Dynamit Nobel Ag | Cartridges and cartridges |
-
1985
- 1985-04-01 CN CN85101596A patent/CN85101596B/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103497077A (en) * | 2013-09-21 | 2014-01-08 | 安徽省无为县花炮总厂 | Formula for colorful fireworks |
| CN103497080A (en) * | 2013-09-21 | 2014-01-08 | 安徽省无为县花炮总厂 | Formula of firecracker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN85101596A (en) | 1986-04-10 |
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| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |