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Natriumhydrogensulfit Produkt Beschreibung

Sodium bisulfite Struktur
7631-90-5
CAS-Nr.
7631-90-5
Bezeichnung:
Natriumhydrogensulfit
Englisch Name:
Sodium bisulfite
Synonyma:
fr-62;NAHSO3;uantaxsbs;DISULFITE;BISULFITE;PYROSULFITE;Sodium acid;Natriumdisulfit;SODIUM DISULFITE;SODIUM BISULFITE
CBNumber:
CB5854257
Summenformel:
HNaO3S
Molgewicht:
104.06
MOL-Datei:
7631-90-5.mol

Natriumhydrogensulfit Eigenschaften

Schmelzpunkt:
150 °C
Dichte
1.48
storage temp. 
Store at RT.
Löslichkeit
300 g/L
Aggregatzustand
Powder/Solid
Wichte
1.48
Farbe
White
Wasserlöslichkeit
300 g/L
Merck 
13,8660
Stabilität:
Stable. Incompatible with strong oxidizing agents, strong acids.
CAS Datenbank
7631-90-5(CAS DataBase Reference)
EPA chemische Informationen
Sulfurous acid, monosodium salt(7631-90-5)
Sicherheit
  • Risiko- und Sicherheitserklärung
  • Gefahreninformationscode (GHS)
Kennzeichnung gefährlicher Xn
R-Sätze: 22-31-41-52
S-Sätze: 26-39-46-25
RIDADR  UN 2693
WGK Germany  1
RTECS-Nr. UX8225000
HS Code  28321000
Giftige Stoffe Daten 7631-90-5(Hazardous Substances Data)
Toxizität LD50 i.v. in rats: 115 mg/kg (Hoppe, Goble)
Bildanzeige (GHS)
Alarmwort Achtung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H302 Gesundheitsschädlich bei Verschlucken. Akute Toxizität oral Kategorie 4 Warnung P264, P270, P301+P312, P330, P501
H318 Verursacht schwere Augenschäden. Schwere Augenschädigung Kategorie 1 Achtung P280, P305+P351+P338, P310
Sicherheit
P280 Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.

Natriumhydrogensulfit Chemische Eigenschaften,Einsatz,Produktion Methoden

ERSCHEINUNGSBILD

FARBLOSE BIS GELBE FLüSSIGKEIT MIT CHARAKTERISTISCHEM GERUCH.

CHEMISCHE GEFAHREN

Zersetzung beim Erhitzen und bei Kontakt mit Säuren, unter Bildung von Schwefeloxiden. Reagiert mit Säuren und starken Oxidationsmitteln. Feuer- und Explosionsgefahr. Schwache Säure. Greift Metalle an.

ARBEITSPLATZGRENZWERTE

TLV: 5 mg/m?(als TWA); Krebskategorie A4 (nicht klassifizierbar als krebserzeugend für den Menschen); (ACGIH 2005).
MAK: Sulfite lösen pseudoallergische Reaktionen aus; (DFG 2006).

AUFNAHMEWEGE

Aufnahme in den Körper durch Verschlucken.

INHALATIONSGEFAHREN

Nur ungenügende Angaben vorhanden über die Geschwindigkeit, mit der eine gesundheitsschädliche Konzentration in der Luft erreicht wird.

WIRKUNGEN BEI KURZZEITEXPOSITION

WIRKUNGEN BEI KURZZEITEXPOSITION:
Der Stoff kann asthmaartige Reaktionen hervorrufen oder Entzündungsreaktionen der Haut bei sensibilisierten Personen nach Verschlucken.

LECKAGE

Ausgelaufene Flüssigkeit in abgedeckten Plastikbehältern sammeln. Reste mit Sand oder inertem Absorptionsmittel aufnehmen und an einen sicheren Ort bringen.

R-Sätze Betriebsanweisung:

R22:Gesundheitsschädlich beim Verschlucken.
R31:Entwickelt bei Berührung mit Säure giftige Gase.
R41:Gefahr ernster Augenschäden.

S-Sätze Betriebsanweisung:

S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S39:Schutzbrille/Gesichtsschutz tragen.
S46:Bei Verschlucken sofort ärztlichen Rat einholen und Verpackung oder Etikett vorzeigen.
S25:Berührung mit den Augen vermeiden.

Chemische Eigenschaften

white powder

Chemische Eigenschaften

Sodium bisulfite is a white crystalline solid. Slight odor of sulfur dioxide and a disagreeable taste. Slowly oxidized to the sulfate on exposure to air

Verwenden

sodium bisulfite is a preservative and anti-oxidant, it is most frequently used as a pH adjuster.

Verwenden

Sodium Bisulfite is a preservative that exists as a powder, with a solubility of 1 g in 4 ml of water. it prevents discoloration and inhib- its bacterial growth. it is used in dried fruit to inhibit browning and maintain the bright color. it is found in reconstituted lemon juice. see sulfur dioxide.

Verwenden

Reducing agent; convenient source of sulfur dioxide.

Verwenden

As disinfectant and bleach, particularly for wool; in dyeing for preparing hot and cold indigo vats; in paper-making in place of sodium hyposulfite to remove Cl from bleached fibers; as stripper (reducer) in laundering; to remove permanganate stains from skin and clothing; to render certain dyes sol; manufacture of sodium hydrosulfite; coagulating rubber latex; as preservative for deteriorative liqs or solutions used for technical purposes; as antiseptic in fermentation industries. As preservative and bleach in food. Pharmaceutic aid (antioxidant).

Allgemeine Beschreibung

Also known as sodium acid sulfite or sodium hydrogen sulfite, NaHS03 is white crystals or crystalline powder that has a slight sulfurous odor and taste.Specific gravity 1.48. Strong irritant to skin and tissue. It is soluble in water,insoluble in alcohol,unstable in air,and non-combustible. Derived by saturating sodium carbonate solution with sulfur dioxide and the solution crystallized. Used as a chemical(sodium salts, cream of tartar), in vat dye preparation, textiles (antichlor, mordant, discharge), food preservative, bleaching groundwood, wool,etc., reducing agent, fermentation, antiseptic, cask sterilization (brewing), copper and brass plating,color preservative for pale crepe rubber, wood pulp digestion, analytical reagent,and as a dietary supplement.

Air & Water Reaktionen

Water soluble.

Reaktivität anzeigen

Sodium bisulfite is a reducing agent. Emits highly toxic gaseous sulfur dioxide gas when heated to decomposition or on contact with mineral acids [Sax, 9th ed., 1996, p. 2949].

Hazard

Not permitted in meats and other sources of vitamin B 1 , strong irritant to skin and tissue.

Health Hazard

Powder is irritating to eyes, nose, and throat and can irritate skin. Ingestion may cause irritation of stomach. Very large doses cause violent colic, diarrhea, depression, and death.

Brandgefahr

Flammable/combustible material. May ignite on contact with moist air or moisture. May burn rapidly with flare-burning effect. Some react vigorously or explosively on contact with water. Some may decompose explosively when heated or involved in a fire. May re-ignite after fire is extinguished. Runoff may create fire or explosion hazard. Containers may explode when heated.

Kontakt-Allergie

Sodium bisulfite is mainly used as an antioxidant in pharmaceutical products, as a disinfectant or bleach, and in the dye industry. The bisulfite of commerce consists chiefly of metabisulfite and possesses the same properties as the true bisulfite. So, the allergen to be tested in products containing disulfite is the corresponding metabisulfite.

Sicherheitsprofil

Poison by intravenous and intraperitoneal routes. Moderately toxic by ingestion. A corrosive irritant to skin, eyes, and mucous membranes. Mutation data reported. An allergen. When heated to decomposition it emits toxic fumes of SO, and Na2O. See also SULFUROUS ACID and SULFITES

mögliche Exposition

Sodium bisulfite is used in the digestion of wood pulp, in the tanning of leather; in the dyeing of textiles; as a photographic reducing agent; as a food preservative; as an additive in electroplating; as disinfectant, bleach, antioxidant, and as inhibitor of yeast and bacteria in winemaking.

Versand/Shipping

UN2693 Bisulfites, inorganic, aqueous solutions, n.o.s., Hazard class: 8; Labels: 8-Corrosive material. UN3260 Bisulfites, inorganic, solid, n.o.s., Hazard class: 8; Labels: 8-Corrosive material.

läuterung methode

Crystallise it from hot H2O (1mL/g). Dry it at 100o under vacuum for 4hours.

Inkompatibilitäten

Aqueous solution is a weak acid. Incompatible with strong mineral acids forming a toxic sulfur dioxide gas. A strong reducing agent, sodium bisulfite is incompatible with oxidizers, such as perchlorates, peroxides, permanganates, chlorates, and nitrates. Reacts with bases forming sulfate. Slowly oxidizes to sulfate in air. Heat causes decomposition. Slowly oxidized to the sulfate on exposure to air. Contact with oxidizers or acids forms sulfur dioxide gas. Attacks some metals in the presence of moisture.

Waste disposal

Dump into water, add soda ash, then neutralize with HCl; flush to sewer with large volumes of water.

Natriumhydrogensulfit Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Natriumhydrogensulfit Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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7631-90-5(Natriumhydrogensulfit)Verwandte Suche:


  • bisulfitedesodium(french)
  • fr-62
  • sodiumbisulfite(1:1)
  • sodiumbisulfite(nahso3)
  • sodiumbisulfite,[liquid]
  • uantaxsbs
  • SULFUROUS ACID MONOSODIUM SALT
  • SODIUM METABISULPHITE
  • SODIUM DISULFITE
  • SODIUM HYDROGEN SULFITE
  • SODIUM HYDROGEN SULPHITE
  • SODIUM ACID SULFITE
  • SODIUM BISULPHITE
  • SODIUM BISULFITE
  • SODIUM BISULFITE, META
  • SODIUM BISULFITE SOLUTION
  • PYROSULFITE
  • monosodium sulfite
  • NATRII METABISULFIS
  • Hydrogen sulfite sodium
  • FORMALIN NEUTRALIZER
  • DISODIUM DISULFITE
  • DISODIUM PYROSULFITE
  • DISULFITE
  • BISULFITE
  • SODIUM SULFITE ANH
  • SODIUM HYDROSULPHITE (HYDROUS)
  • NAHSO3
  • SODIUM HYDROSULPHITE 88%MIN
  • SODIUM METABISULPHITE 97-98%)-FOOD
  • SodiuM bisulfite, Mixture of NaHSO3 and Na2S2O5, powder, for analysis 1KG
  • Sulfurousacid, sodiuM salt (1:1)
  • Sodium acid
  • Sodium bisulfite ACS reagent, mixture of NaHSO3 and Na2S2O5
  • Sodium bisulfite solution purum, ~40%
  • ORANGE G SODIUM SALT HIGH PURITY GRADE
  • Sodium bisulfite, mixture of NaHSO3 and Na2S2O5
  • Liquid of Sodium bisulfite
  • Sodium Hydrogensulfite 〔Sodium Bisulfite〕
  • Sodium bisulfite anhydrous, free-flowing, mixture of NaHSO3 and Na2S2O5, Redi-Dri, ACS reagent
  • Sodium bisulfiteACS reagent, ≥ 58.5% (Titration)
  • FREE SAMPLE NCV SODIUM METABISULPHITE
  • Sodium bisulfite, For ACS analysis
  • Sodium Bisulfite, Purified
  • SODIUM BISULFITE, REAGENT (ACS)SODIUM BISULFITE, REAGENT (ACS)SODIUM BISULFITE, REAGENT (ACS)
  • SODIUM BISULFITE GRAN
  • Sodium bisulfite, ACS Grade
  • sodiumbisulfite,solid
  • sodiumhydrogensulfite,[solid]
  • sodiumhydrogensulfite,[solution]
  • bisulfitedesodium
  • sodiumsulfite(nahso3)
  • sodiumsulhydrate
  • Solfurousacid,monosodiumsalt
  • SODIUM METABISULPHITE 65PCT
  • SODIUM METABISULPHAT
  • SODIUM META BISULPHITE FOOD& TECH GRADE
  • SODIUM METABISULFITE FOODGRADE
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