Scheda di sicurezza della Zirconia - Usa
Scheda di sicurezza pubblicata sul sito web del
Centers for Disease Control and Prevention 1600 Clifton Rd. Atlanta, GA 30333, USA
che evidenzia la pericolosità della zirconia e raccomanda una serie di misure per salvaguardare la salute di chi si trova in contatto con tale lega.
http://www.cdc.gov/niosh/npg/npgd0677.html
Pocket Guide to Chemical Hazards
Zirconium compounds (as Zr) |
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Synonyms & Trade NamesZirconium metal: ZirconiumSynonyms of other zirconium compounds vary depending upon the specific compound. |
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CAS No.7440-67-7 (Metal) |
RTECS No.ZH7070000 (Metal) |
DOT ID & Guide1358 170 (powder, wet)1932 135 (scrap) 2008 135 (powder, dry) |
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FormulaZr (Metal) |
Conversion |
IDLH50 mg/m3 (as Zr)See: 7440677 |
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Exposure LimitsNIOSH REL*: TWA 5 mg/m3 ST 10 mg/m3 [*Note: The REL applies to all zirconium compounds (as Zr) except Zirconium tetrachloride.]OSHA PEL†: TWA 5 mg/m3 |
Measurement MethodsNIOSH 7300 ,7301 , 9102 ; OSHA ID121 See: NMAM or OSHA Methods |
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Physical DescriptionMetal: Soft, malleable, ductile, solid or gray to gold, amorphous powder. |
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MW:91.2 |
BP:6471°F |
MLT: 3375°F |
Sol:Insoluble |
VP:0 mmHg (approx) |
IP:NA |
Sp.Gr:6.51 (Metal) |
Fl.P:NA |
UEL:NA |
LEL:NA |
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Metal: Combustible, but solid form is difficult to ignite; however, powder form may ignite SPONTANEOUSLY and can continue burning under water. | |||||
Incompatibilities & ReactivitiesPotassium nitrate, oxidizers [Note: Fine powder may be stored completely immersed in water.] |
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Exposure Routesinhalation, skin and/or eye contact |
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SymptomsSkin, lung granulomas; in animals: irritation skin, mucous membrane; X-ray evidence of retention in lungs |
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Target OrgansSkin, respiratory system |
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Personal Protection/Sanitation(See protection codes)Recommendations regarding personal protective clothing vary depending upon the specific compound. Recommendations regarding eye protection vary depending upon the specific compound. Recommendations regarding washing the skin vary depending upon the specific compound. Recommendations regarding the removal of personal protective clothing that becomes wet or contaminated vary depending upon the specific compound. Recommendations regarding the daily changing of personal protective clothing vary depending upon the specific compound. Recommendations regarding the need for eyewash or quick drench facilities vary depending upon the specific compound. |
First Aid(See procedures)Eye: Irrigate immediately Skin: Soap wash Breathing:Respiratory support Swallow: Medical attention immediately |
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Respirator RecommendationsNIOSH/OSHA
Up to 25 mg/m3:
Up to 50 mg/m3:
Emergency or planned entry into unknown concentrations or IDLH conditions:
Escape: |
Last Updated (Monday, 27 September 2010 09:44)