成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

POTASSIUM METABISULFITE

POTASSIUM METABISULFITE Struktur
16731-55-8
CAS-Nr.
16731-55-8
Englisch Name:
POTASSIUM METABISULFITE
Synonyma:
E224;Peptide Powder;Dikaliumdisulfit;PubChem ID: 28019;POTASSIUM DISULFITE;POTASSIUM BISULFITE;POTASSIUM METABISULF;POTASSIUM BISULPHITE;POTASSIUM DISULPHITE;dipotassiumdisulfite
CBNumber:
CB5179482
Summenformel:
K2O5S2
Molgewicht:
222.32
MOL-Datei:
16731-55-8.mol

POTASSIUM METABISULFITE Eigenschaften

Schmelzpunkt:
190°C
Dichte
2.34 g/cm3
Dampfdichte
2.3 (vs air)
storage temp. 
Store at +5°C to +30°C.
L?slichkeit
H2O: 0.1 M at 20 °C, clear, colorless
Aggregatzustand
Powder/Solid
Wichte
2.3
Farbe
White to slightly yellow
PH
2.5-4.5 (25℃, 0.1M in H2O)
Geruch (Odor)
Odorless
S?ure-Base-Indikators(pH-Indikatoren)
3-4.5 at 22.2 g/l at 25 °C
Wasserl?slichkeit
Soluble in water. Insoluble in ethanol.
Sensitive 
Air Sensitive
Decomposition 
150°C
maximale Wellenl?nge (λmax)
267nm(H2O)(lit.)
Merck 
14,7645
EPA chemische Informationen
Disulfurous acid, potassium salt (1:2) (16731-55-8)
Sicherheit
  • Risiko- und Sicherheitserkl?rung
  • Gefahreninformationscode (GHS)
Kennzeichnung gef?hrlicher Xi
R-S?tze: 31-36/37/38-41
S-S?tze: 26-36-39
WGK Germany  1
RTECS-Nr. TT4920000
23
TSCA  Yes
HS Code  28322000
Giftige Stoffe Daten 16731-55-8(Hazardous Substances Data)
Toxizit?t LD50 orally in Rabbit: 2300 mg/kg
Bildanzeige (GHS) GHS hazard pictogramsGHS hazard pictograms
Alarmwort Achtung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H318 Verursacht schwere Augensch?den. Schwere Augensch?digung Kategorie 1 Achtung GHS hazard pictogramssrc="/GHS05.jpg" width="20" height="20" /> P280, P305+P351+P338, P310
H335 Kann die Atemwege reizen. Spezifische Zielorgan-Toxizit?t (einmalige Exposition) Kategorie 3 (Atemwegsreizung) Warnung GHS hazard pictogramssrc="/GHS07.jpg" width="20" height="20" />
Sicherheit
P261 Einatmen von Staub vermeiden.
P271 Nur im Freien oder in gut belüfteten R?umen verwenden.
P280 Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.
P305+P351+P338 BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach M?glichkeit entfernen. Weiter spülen.
P403+P233 An einem gut belüfteten Ort aufbewahren. Beh?lter dicht verschlossen halten.

POTASSIUM METABISULFITE Chemische Eigenschaften,Einsatz,Produktion Methoden

ERSCHEINUNGSBILD

WEISSES KRISTALLINES PULVER MIT STECHENDEM GERUCH.

CHEMISCHE GEFAHREN

Zersetzung beim Erhitzen und Verbrennen unter Bildung giftiger und reizender Rauche mit Schwefeloxiden. Reagiert mit S?uren unter Freisetzung von giftigem und reizendem Schwefeldioxid.

ARBEITSPLATZGRENZWERTE

TLV nicht festgelegt (ACGIH 2005).
MAK nicht festgelegt (DFG 2005).

AUFNAHMEWEGE

Aufnahme in den K?rper durch Inhalation und durch Verschlucken.

INHALATIONSGEFAHREN

Verdampfung bei 20°C vernachl?ssigbar; eine gesundheitssch?dliche Partikelkonzentration in der Luft kann jedoch beim Dispergieren schnell erreicht werden.

WIRKUNGEN BEI KURZZEITEXPOSITION

WIRKUNGEN BEI KURZZEITEXPOSITION:
Inhalation dieser Substanz kann zu asthma?hnlichen Reaktionen führen.

WIRKUNGEN NACH WIEDERHOLTER ODER LANGZEITEXPOSITION

Wiederholter oder andauernder Kontakt kann zu Hautsensibilisierung führen. Wiederholte oder andauernde Inhalation kann asthmatische Beschwerden hervorrufen.

LECKAGE

Verschüttetes Material in Beh?ltern sammeln; falls erforderlich durch Anfeuchten Staubentwicklung verhindern. Reste mit viel Wasser wegspülen. Pers?nliche Schutzausrüstung: Atemschutzger?t, P2-Filter für sch?dliche Partikel.

R-S?tze Betriebsanweisung:

R31:Entwickelt bei Berührung mit S?ure giftige Gase.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.

S-S?tze Betriebsanweisung:

S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.

Chemische Eigenschaften

Potassium metabisulfite occurs as white or colorless free-flowing crystals, crystalline powder, or granules, usually with an odor of sulfur dioxide.

Verwenden

Potassium Metabisulfite is a chemical preservative and antioxi- dant obtained as white or colorless crystals, powder, or granules. it is soluble in water and insoluble in alcohol. the sulfite salt yields sulfurous acid at a low ph. it is used as a food preservative.

Allgemeine Beschreibung

Potassium disulfite (Potassium metabisulfite, PMB) is an inorganic salt with antimicrobial properties. It is a sulfiting agent that prevents browning of foods.

Pharmazeutische Anwendungen

Potassium metabisulfite is used in applications similar to those of sodium metabisulfite in pharmaceuticals, and in the food, brewing, and wine making industries. It is used as an antioxidant, antimicrobial preservative and sterilizing agent.

Kontakt-Allergie

Potassium metabisulfite is an antioxidant used as an antifermentative agent in breweries and wineries, as a preservative of fruits and vegetables, and to bleach straw. Reactions to both sodium and potassium metabisulfite are expected.

Sicherheitsprofil

Experimental reproductive effects. A very irritating material. Questionable carcinogen with experimental tumorigenic data. Mutation data reported. When heated to decomposition it emits toxic fumes of SOx and K2SO3. See also SULFITES.

Sicherheit(Safety)

Potassium metabisulfite is used in a variety of foods and pharmaceutical preparations, including oral, otic, rectal, and parenteral preparations. Potassium metabisulfite is considered a very irritating material, and may cause dermatitis on exposed skin.
Hypersensitivity reactions to potassium metabisulfite and other sulfites, mainly used as preservatives in food products, have been reported. Reactions include bronchospasm and anaphylaxis; some deaths have also been reported, especially in those with a history of asthma or atopic allergy.These reactions have led to restrictions by the FDA on the use of sulfites in food applications. However, this restriction has not been extended to their use in pharmaceutical applications. Indeed, epinephrine (adrenaline) injections used to treat severe allergic reactions may contain sulfites.
The WHO has set an acceptable daily intake of sulfites, as SO2, at up to 0.35 mg/kg body-weight.

Lager

Potassium metabisulfite should be stored in a cool, dark place. When stored at a maximum temperature of 25°C and maximum relative humidity of 45%, the shelf-life is 6 months. Potassium metabisulfite decomposes at temperatures above 150°C. In the air, it oxidizes to the sulfate, more readily in the presence of moisture.
In aqueous solution, potassium metabisulfite forms potassium bisulfite (KHSO3) which exerts a strong reducing effect.

Inkompatibilit?ten

Potassium metabisulfite is incompatible with strong acids, water, and most common metals. It reacts with nitrites and sodium nitrate at room temperature, which occasionally results in the formation of flame. The reaction may be explosive if water is present. Potassium metabisulfite liberates SO2 with acids.
Sulfites, including potassium metabisulfite, can react with various pharmaceutical compounds including sympathomimetics such as epinephrine (adrenaline),chloramphenicol,cisplatin, and amino acids,which can result in their pharmacological inactivation. Sulfites are also reported to react with phenylmercuric nitrate,and may adsorb onto rubber closures.

Regulatory Status

GRAS listed. Accepted in Europe for use as a food additive in certain applications. Included in the FDA Inactive Ingredients Database (IM and IV injection; otic and rectal solutions and suspensions). Included in the Canadian List of Acceptable Nonmedicinal Ingredients.

POTASSIUM METABISULFITE Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


POTASSIUM METABISULFITE Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

Global( 454)Lieferanten
Firmenname Telefon E-Mail Land Produktkatalog Edge Rate
Hebei Yanxi Chemical Co., Ltd.
+8617531190177
peter@yan-xi.com China 5857 58
Hebei Weibang Biotechnology Co., Ltd
+8617732866630
bess@weibangbio.com China 18150 58
Hebei Zhuanglai Chemical Trading Co.,Ltd
+8613343047651
admin@zlchemi.com China 3002 58
Shandong Deshang Chemical Co., Ltd.
+86-0531-8875-2665 +8613153039501
info@deshangchem.com China 662 58
Shanghai Daken Advanced Materials Co.,Ltd
+86-371-66670886
info@dakenam.com China 18751 58
Shanghai Zheyan Biotech Co., Ltd.
18017610038
zheyansh@163.com CHINA 3619 58
career henan chemical co
+86-0371-86658258 +8613203830695
sales@coreychem.com China 29880 58
Hubei Jusheng Technology Co.,Ltd.
18871490254
linda@hubeijusheng.com CHINA 28172 58
Chongqing Chemdad Co., Ltd
+86-023-6139-8061 +86-86-13650506873
sales@chemdad.com China 39894 58
Zhengzhou Alfa Chemical Co.,Ltd
+8618530059196
sale04@alfachem.cn China 11817 58

16731-55-8()Verwandte Suche:


  • Potassium disulfite, extra pure, NF, Ph Fran, E 224
  • Potassium disulfite/ 95+%
  • POTASSIUM METABISULF
  • PotassiuM Metabisulfite, extra pure, 97% 25GR
  • Potassium metabisulfite,97%,extra pure
  • POTASSIUM DISULFITE FOR ANALYSIS EMSURE
  • Disulfurous acid,potassiuM salt (1:2)
  • Potassium metasulfite
  • POTASSIUM PYROSULFITE
  • POTASSIUM M-BISULFITE
  • POTASSIUM METABISULFITE
  • POTASSIUM METABISULPHITE
  • POTASSIUM DISULFITE
  • POTASSIUM BISULFITE
  • POTASSIUM BISULPHITE
  • DI-POTASSIUM DISULPHITE
  • DIPOTASSIUM PYROSULFITE
  • POTASIUM METABISULFITE
  • POTASSIUM DISULFITE POWDER, EXTRA PURE, N. F., E 224
  • POTASSIUM DISULFITE POWDER, R. G.
  • PotassiumDisulfitemetabisulphite
  • PotassiumMetabisulphiteFcc
  • PotassiumMetabisulphiteNf
  • PotassiumMetabisulfite97%
  • PotassiumMetabisulphite>95%
  • PotassiumMetabisulphiteGr
  • POTASSIUM PYROSULFITE (K2S2O5)
  • Potassium disulfite >=98%
  • Potassium disulfite puriss., meets analytical specification of Ph.Eur., BP, NF, FCC, E224, 95.0-101.0% (iodometric), powder, 51.8-57.6% sulfur dioxide
  • Potassium disulfite Vetec(TM) reagent grade, 98%
  • POTASSIUM DISULPHITE
  • Potassium metabisulfite, extra pure, 97%
  • Potassium Disulfite 〔Potassium Pyrosulfite〕
  • Potassium Disulfite, Meets analytical specification of Ph.Eur.BP, NF, FCC
  • dipotassiumdisulfite
  • dipotassiummetabisulfite
  • Disulfurousacid,dipotassiumsalt
  • potassiummetabisulphate
  • pyrosulfurousacid,dipotassiumsalt
  • POTASSIUM METABISULFITE REAGENT
  • POTASSIUMMETABISULFITE,CRYSTAL,FCC
  • POTASSIUMMETABISULFITE,CRYSTAL,NF
  • POTASSIUMMETABISULFITE,CRYSTAL,REAGENT
  • POTASSIUMPYROSULPHITE
  • Dikaliumdisulfit
  • Potassium metabisulfite, 95+%
  • Potassium Metabisulfite, granular
  • Potassium disulfite, 95% min
  • Potassium metabisulfite, Potassium pyrosulfite
  • Potassium Metabisulfite, Crystal
  • potasslum metabisutfite for food:potassium pyrosulfite for food
  • potassium pyrosuifite
  • Potassium metabisulfide
  • E224
  • Potassium disulfite, reagent grade
  • Potassium disulfite, extra pure, USP, NF
  • Potassium metabisulphite extrapure 500GM
  • "Potassium disulfite, AR"
Copyright 2019 ? ChemicalBook. All rights reserved