Sample size determination: Difference between revisions

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{{chembox
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| verifiedrevid = 400101721
| ImageFile = Guanidinium nitrate.png
| ImageSize = 200px
| ImageFile1 = Guanidine-nitrate-3D-balls.png
| ImageName1 = Ball-and-stick models of the constituent ions
| IUPACName = Guanidinium nitrate
| OtherNames =
| Section1 = {{Chembox Identifiers
| Abbreviations =
| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}
| ChemSpiderID = 10049
| InChI = 1/CH5N3.HNO3/c2*2-1(3)4/h(H5,2,3,4);(H,2,3,4)
| InChIKey = CNUNWZZSUJPAHX-UHFFFAOYAZ
| StdInChI_Ref = {{stdinchicite|correct|chemspider}}
| StdInChI = 1S/CH5N3.HNO3/c2*2-1(3)4/h(H5,2,3,4);(H,2,3,4)
| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}
| StdInChIKey = CNUNWZZSUJPAHX-UHFFFAOYSA-N
| CASNo = 506-93-4
| EINECS = 208-060-1
| PubChem = 10481
| SMILES = [O-][N+](=O)O.[N@H]=C(N)N
| InChI =
| RTECS =
| MeSHName =
| ChEBI =
| KEGG =
| ATCCode_prefix =
| ATCCode_suffix =
| ATC_Supplemental =}}
| Section2 = {{Chembox Properties
| Formula = CH<sub>6</sub>N<sub>4</sub>O<sub>3</sub>
| MolarMass =
| Appearance = White solid
| Density = 1.436 g/cm<sup>3</sup>
| MeltingPtC = 213
| Melting_notes =
| BoilingPt =
| Boiling_notes = Decomposes below boiling point
| Solubility = 160 g/l at 20 °C
| SolubleOther =
| Solvent =
| pKa =
| pKb = }}
| Section7 = {{Chembox Hazards
| ExternalMSDS = [http://www.ilo.org/public/english/protection/safework/cis/products/icsc/dtasht/_icsc05/icsc0561.pdf MSDS]
| EUClass = {{Hazchem O}}
| EUIndex =
| MainHazards =
| NFPA-H = 2
| NFPA-F = 1
| NFPA-R = 4
| NFPA-O = E
| RPhrases = {{R20}} {{R21}} {{R22}} {{R36}} {{R38}}
| SPhrases =
| RSPhrases =
| FlashPt =
| Autoignition =
| ExploLimits =
| PEL = }}
}}
 
'''Guanidine nitrate''' is a high energy fuel used in some [[gas generator]] and [[solid rocket]] propellant applications.
 
==Overview==
 
Guanidine nitrate is the [[salt (chemistry)|salt]] formed from [[guanidine]] and [[nitric acid]]. It has the chemical formula C(NH<sub>2</sub>)<sub>3</sub>NO<sub>3</sub>. It has been used as a [[monopropellant]] in the [[Jetex engine]] for [[model airplane]]s. It is attractive because it has a high gas output and low flame temperature. It has a relatively high monopropellant [[specific impulse]] of 177 seconds (<math>1.7 kN\ x\ \tfrac {s}{kg}</math>).<ref group="note" >1000 lbf/in² (700 kPa) chamber pressure, 14.7 lbf/in² (101 kPa) exit pressure, shifting equilibrium theoretical performance</ref>
 
==Safety==
Hazards:
*May explosively decompose on shock, friction, or concussion.
*May explode on heating.
*On combustion, forms toxic and corrosive fumes including nitric acid and nitrogen oxides.
*The substance is a strong oxidant and reacts with combustible and reducing materials.
Routes of exposure:  
*The substance can be absorbed into the body by ingestion.
*A nuisance-causing concentration of airborne particles can be reached quickly when dispersed, especially if powdered.
Effects of short-term exposure:
*The substance is severely irritating to the eyes and the skin.
*Harmful if inhaled, swallowed or absorbed through the skin.
 
== See also ==
* [[Nitroguanidine]]
 
==Notes==
{{Reflist|group=note|liststyle=lower-roman}}
 
{{Reflist}}
 
==External links==
*Jetex: [http://jetex.org/motors/propellants.html Propellants]
*PhysChem: [http://physchem.ox.ac.uk/MSDS/GU/guanidine_nitrate.html Guanidine Nitrate] MSDS
[[Category:Guanidines]]
[[Category:Nitrates]]
[[Category:Rocket fuels]]

Latest revision as of 00:37, 2 December 2014



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