The externally low Melting point: 165 °C (329 °F; 438 K) would seem to me to be a dead give-a-way to the presence of 25% volume of Fe3(CO)12 by weight.
Here again the safety profile is problematic Triiron dodecarbonyl Safety Profile Safety Information of Triiron dodecarbonyl (CAS NO.17685-52-8): Hazard Codes: [image: Flammable]F,[image: Harmful]Xn,[image: Toxic]T Risk Statements: 11-23/24/25-36/37/38-20/22 R11:Highly flammable. R23/24/25:Toxic by inhalation, in contact with skin and if swallowed. R20/22:Harmful by inhalation and if swallowed. R36/37/38:Irritating to eyes, respiratory system and skin. Safety Statements: 16-26-28-33-36/37/39-45-7/9-24 S16:Keep away from sources of ignition. S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S28:After contact with skin, wash immediately with plenty of soap-suds. S33:Take precautionary measures against static discharges. S36/37/39:Wear suitable protective clothing, gloves and eye/face protection. S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S24:Avoid contact with skin. S7:Keep container tightly closed. S9:Keep container in a well-ventilated place. RIDADR: UN 3175 4.1/PG 2 WGK Germany: 3 F: 10-23 HazardClass: 6.1 PackingGroup: II On Sun, May 12, 2019 at 4:40 PM <mix...@bigpond.com> wrote: > In reply to Axil Axil's message of Sun, 12 May 2019 03:39:08 -0400: > Hi, > [snip] > > 1) It may be Fe3(CO)12, a solid in the form of micro-crystals, rather than > iron > pentacarbonyl. > 2) They didn't even know it was present, hence were hardly in a position > to warn > anyone. > > >Fe(CO)5 is toxic, which is of concern because of its volatility (vapour > >pressure: 21 millimetres of mercury (2.8 kPa) at 20 °C). If inhaled > ><https://en.wikipedia.org/wiki/Inhale>, iron pentacarbonyl may cause lung > >irritation, toxic pneumonitis > >< > https://en.wikipedia.org/w/index.php?title=Toxic_pneumonitis&action=edit&redlink=1 > >, > >or pulmonary edema <https://en.wikipedia.org/wiki/Pulmonary_edema>. Like > >other metal carbonyls, Fe(CO)5 is flammable > ><https://en.wikipedia.org/wiki/Flammable>. It is, however, considerably > >less toxic than nickel tetracarbonyl > ><https://en.wikipedia.org/wiki/Nickel_tetracarbonyl>. > > > >In regards to occupational exposures to iron pentacarbonyl, the National > >Institute for Occupational Safety and Health > >< > https://en.wikipedia.org/wiki/National_Institute_for_Occupational_Safety_and_Health > > > >has > >set a recommended exposure limit > ><https://en.wikipedia.org/wiki/Recommended_exposure_limit> at 0.1 ppm > >(0.23 mg/m3) over an eight-hour time-weighted average, and a short-term > >exposure limit <https://en.wikipedia.org/wiki/Short-term_exposure_limit> > at > >0.2 ppm (0.45 mg/m3).[14] > ><https://en.wikipedia.org/wiki/Iron_pentacarbonyl#cite_note-14> > > > > > >If Fe(CO)5 were present in the final product, the smelter would be > required > >to warn the customer about its toxicity when handled, Remember, this iron > >pentacarbonyl is 25% of the product. > > > >On Sun, May 12, 2019 at 12:58 AM <mix...@bigpond.com> wrote: > > > >> In reply to Axil Axil's message of Sat, 11 May 2019 23:40:53 -0400: > >> Hi, > >> [snip] > >> >The ferrosilicon chemistry > >> > > >> >https://www.sciencedirect.com/topics/chemistry/silicon-monoxide > >> > > >> >as per its reference as follows: > >> > > >> >Production of Ferroalloys > >> >< > https://www.sciencedirect.com/science/article/pii/B9780080969886000055> > >> > > >> >Rauf Hurman Eric, in Treatise on Process Metallurgy: Industrial > Processes > >> ><https://www.sciencedirect.com/book/9780080969886>, 2014 > >> >1.10.4.7.2 Fundamental Aspects > >> > > >> [snip] > >> > > >> >Sorry, but the only chemically carbon bound compounds invoked with > >> >ferrosilicon > >> >chemistry is CO and SiC. > >> > >> Normally yes. However this may throw more light on the subject:- > >> > >> https://en.wikipedia.org/wiki/Metal_carbonyl > >> > >> & > >> > >> https://en.wikipedia.org/wiki/Triiron_dodecacarbonyl which is a solid. > >> > >> Regards, > >> > >> > >> Robin van Spaandonk > >> > >> local asymmetry = temporary success > >> > >> > Regards, > > > Robin van Spaandonk > > local asymmetry = temporary success > >
