Natriumdichromat Dihydrat Produkt Beschreibung

Sodium dichromate dihydrate Struktur
7789-12-0
  • CAS-Nr.7789-12-0
  • Bezeichnung:Natriumdichromat Dihydrat
  • Englisch Name:Sodium dichromate dihydrate
  • Synonyma:Natriumdichromat Dihydrat
    SODIUM BICHROMATE;SODIUM DICHROMATE;SODIUM DICHROMATE GR;Sodium dichromate di;SODIUM DICHROMATE 2H2O;SODIUM DICHROMATE, ACS;Sodiumbichromateanhydrous;SODIUM DICHROMATE, HYDROUS;SODIUM DICHROMATE 2HYD XTL;SODIUM BICHROMATE DIHYDRATE
  • CBNumber:CB2206099
  • Summenformel:Cr2H5NaO8
  • Molgewicht:260.01
  • MOL-Datei:7789-12-0.mol
Natriumdichromat Dihydrat physikalisch-chemischer Eigenschaften
  • Schmelzpunkt: :91 °C(lit.)
  • Siedepunkt: :400°C
  • Dichte :2,348 g/cm3
  • Dampfdichte :10 (vs air)
  • storage temp.  :Store at +5°C to +30°C.
  • Aggregatzustand :Solid
  • Wichte :2.348
  • Farbe :Red-orange
  • Geruch (Odor) :Odorless
  • Säure-Base-Indikators(pH-Indikatoren) :3.5-4.0
  • Wasserlöslichkeit :730 g/L (20 ºC)
  • Sensitive  :Hygroscopic
  • Merck  :14,8609
  • CAS Datenbank :7789-12-0(CAS DataBase Reference)
  • EPA chemische Informationen :Disodium dichromate dihydrate (7789-12-0)
Sicherheit

Sodium dichromate dihydrate Chemische Eigenschaften,Einsatz,Produktion Methoden

  • R-Sätze Betriebsanweisung: R45:Kann Krebs erzeugen.
    R46:Kann vererbbare Schäden verursachen.
    R60:Kann die Fortpflanzungsfähigkeit beeinträchtigen.
    R61:Kann das Kind im Mutterleib schädigen.
    R8:Feuergefahr bei Berührung mit brennbaren Stoffen.
    R21:Gesundheitsschädlich bei Berührung mit der Haut.
    R25:Giftig beim Verschlucken.
    R26:Sehr giftig beim Einatmen.
    R34:Verursacht Verätzungen.
    R42/43:Sensibilisierung durch Einatmen und Hautkontakt möglich.
    R48/23:Giftig: Gefahr ernster Gesundheitsschäden bei längerer Exposition durch Einatmen.
    R50/53:Sehr giftig für Wasserorganismen, kann in Gewässern längerfristig schädliche Wirkungen haben.
  • S-Sätze Betriebsanweisung: S53:Exposition vermeiden - vor Gebrauch besondere Anweisungen einholen.
    S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
    S60:Dieses Produkt und sein Behälter sind als gefährlicher Abfall zu entsorgen.
    S61:Freisetzung in die Umwelt vermeiden. Besondere Anweisungen einholen/Sicherheitsdatenblatt zu Rate ziehen.
  • Chemische Eigenschaften Sodium chromate, including the hexahydrate, is yellow crystalline solids that can also be used in solution. Disodium dichromate (10588-01-9):
  • Chemische Eigenschaften Orange-yellow powder. Soluble in acids and hot water; insoluble in alcohol and ether.
  • Verwenden It is used in preparation of titrant in redox titrations.
  • Definition A red crystallinesolid, Na2Cr2O7.2H2O, solublein water and insoluble in ethanol. Itis usually known as the dihydrate(r.d. 2.52), which starts to lose waterabove 100°C; the compound decomposesabove 400°C. It is made bymelting chrome iron ore with limeand soda ash and acidification of thechromate thus formed. Sodiumdichromate is cheaper than the correspondingpotassium compound buthas the disadvantage of being hygroscopic.It is used as a mordant in dyeing,as an oxidizing agent in organicchemistry, and in analytical chemistry.
  • Allgemeine Beschreibung Solid orange-yellow crystal or powder.
  • Air & Water Reaktionen Water soluble (hot water).
  • Reaktivität anzeigen Sodium dichromate dihydrate can react with reducing agents to generate heat and products that may be gaseous (causing pressurization of closed containers). The products may themselves be capable of further reactions (such as combustion in the air). Reactions may be rapid but often requires initiation (heat, spark, catalyst, addition of a solvent). Can react violently with active metals, cyanides, esters, and thiocyanates.
  • Hazard Toxic by ingestion and inhalation.
  • Health Hazard INHALATION: Corrosive to mucous membranes continuous exposure may lead to perforation of nasal septum. EYES: Conjunctivitis and lacrimation. SKIN: Corrosive producing deep penetrating ulcers to exposed area. Slow to heal. INGESTION: Has a harsh metallic taste. May cause vertigo, thirst, abdominal pain, vomiting, shock, convulsions and coma.
  • mögliche Exposition Used to make dyes, inks, pigments, and other chromates; in leather tanning, a corrosion inhibitor in circulating water systems; metal treatment; a drilling mud additive; chemical intermediate for chromium catalysts; colorimetry, oxidizing agent; bleaching agent; an algicide, fungicide, insecticide; in wood preservation.
  • Versand/Shipping UN3087 Oxidizing solid, toxic, n.o.s., Hazard Class: 5.1; Labels: 5.1-Oxidizer, 6.1-Poisonous materials, Technical Name Required. UN3085 Oxidizing solid, corrosive, n.o.s., Hazard Class: 5.1; Labels: 5.1-Oxidizer, 8-Corrosive material, Technical Name Required.
  • läuterung methode Crystallise the dichromate from small volumes of H2O by evaporation to crystallisation. Its solubility in H2O is 238% at 0o and 508% at boiling. The red dihydrate is slowly dehydrated by heating at 100o for long periods. It is deliquescent and is a powerful oxidising agent—do not place it in contact with skin— wash immediately as it is caustic. (Possible carcinogen.) Sodium dihydrogen orthophosphate ( 2 H2O) [13472-35-0 (2H2O), 10049-21-5 (H2O), 7558-80-7 (anhydrous)] M 156.0, m 60o(dec), d 4 1.91. Crystallise it from warm water (0.5mL/g) by chilling.
  • Inkompatibilitäten Aqueous solution in a base. A strong oxidizer. Violent reaction with reducing agents; combustibles, strong acids; organic materials.
Sodium dichromate dihydrate Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
Natriumdichromat Dihydrat Anbieter Lieferant Produzent Hersteller Vertrieb Händler.
Global(0)Suppliers
7789-12-0, Sodium dichromate dihydrate Verwandte Suche:
  • SODIUM DICHROMATE
  • SODIUM DICHROMATE 2H2O
  • SODIUM DICHROMATE-2-HYDRATE
  • SODIUM DICHROMATE DIHYDRATE
  • SODIUM DICHROMATE, HYDROUS
  • SODIUM BICHROMATE
  • SODIUM BICHROMATE DIHYDRATE
  • SODIUM DICHROMATE, DIHYDRATE REAGENT (ACS)
  • Sodiumdichromatedihydrate,ReagentGrade
  • chromicacid(h2cr2o7),disodiumsalt,dihydrate
  • dichromicacid(h2cr2o7),disodiumsalt,dihydrate
  • Dichromicacid,disodiumsalt,dihydrate
  • Sodium dichromate dihydrate, ReagentPlus&#174,, 99%
  • SODIUM DICHROMATE DIHYDRATE, ACS
  • SODIUM DICHROMATE DIHYDRATE 99.5+% &
  • SODIUM DICHROMATE DIHYDRATE, 99.5+%, A.C .S. REAGENT
  • SODIUM DICHROMATE EXTRA PURE
  • SODIUM DICHROMATE GR
  • Sodiumdichromatedihydrate,99%
  • Sodium dichromate dihydrate, ACS, 99.5-100.5%
  • SODIUM DICHROMATE extrapure AR
  • Merck Sodium Dichromate GPR
  • Sodium dichromate, standard solution
  • SODIUMDICHROMATE,CRYSTAL,REAGENT
  • SODIUMDICHROMATE,GRANULAR,TECHNICAL
  • chromic acid, disodium salt, dihydrate
  • Disodium oxido-(oxido-dioxochromio)oxy-dioxochromium dihydrate
  • 3-Hydroxy-4-(4-methyl-2-sulfophenylazo)-2-naphthalenecarboxylic acid·calcium
  • Bichromic acid·2sodium·2hydrate
  • Sodium dichromate dihydrate,Sodium bichromate
  • Sodium dichromate dihydrate, reagent grade, ACS
  • SODIUM DICHROMATE, ACS
  • Sodium dichromate di
  • Disodiumdichromatedihydrate
  • Sodiumbichromateanhydrous
  • Sodium dichromate dihydrate (Na2Cr2O7.2H2O)
  • Sodium dichromate dihydrate (VI)
  • SODIUM DICHROMATE DIHYDRATE, FINE CRYST.
  • SODIUM DICHROMATE DIHYDRATE ACS REAGENT
  • SODIUM DICHROMATE-2-HYDRATE R. G., REAG.
  • SODIUM DICHROMATE DIHYDRATE, 99.995%
  • SODIUM DICHROMATE-2-HYDRATE PURE
  • SODIUM DICHROMATE DIHYDRATE REAGENTPLU&
  • SodiuM dichroMate dihydrate, ACS reagent, 99.5-100.5%
  • SODIUM DICHROMATE DIHYDRATE FOR ANALYSIS
  • SodiuM dichroMate, dehydrate
  • Sodium dichromate dihydrateACS reagent, 99.5-100.5% (Titration)
  • Sodium dichromate dihydrate, For analysis ACS
  • Sodium dichromate dihydrate ACS reagent, >=99.5%
  • BAIRD PARKER RPF BASE 10X90ML
  • chroMicacid(h2cr2o7),disodiuMsalt,dihydrate dichroMicacid(h2cr2o7),disodiuMsalt,dihydrate DichroMicacid,disodiuMsalt,dihydrate DisodiuMdichroMatedihydrate SodiuMbichroMateanhydrous
  • (T)SODIUMDICHROMATEDIHYDRATE
  • SODIUM DICHROMATE 2HYD XTL
  • SODIUM DICHROMATE, DIHYDRATE, REAGENT (ACS)SODIUM DICHROMATE, DIHYDRATE, REAGENT (ACS)SODIUM DICHROMATE, DIHYDRATE, REAGENT (ACS)SODIUM DICHROMATE, DIHYDRATE, REAGENT (ACS)
  • 7789-12-0
  • 7782-12-0
  • Na2Cr2O7
  • Cr2Na2O72H2O