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Methansulfonsure

Methanesulfonic acid Struktur
75-75-2
CAS-Nr.
75-75-2
Bezeichnung:
Methansulfonsure
Englisch Name:
Methanesulfonic acid
Synonyma:
MsOH;MSA;MeSO3H;METHANESULPHONIC ACID;METHYLSULFONIC ACID;acidemethanesulfonique;METHANE SULFONIC ACID 70%;Mesic acid;SULFOMETHANE;Methylsulphonicacid
CBNumber:
CB3433704
Summenformel:
CH4O3S
Molgewicht:
96.11
MOL-Datei:
75-75-2.mol

Methansulfonsure Eigenschaften

Schmelzpunkt:
17-19 °C (lit.)
Siedepunkt:
167 °C/10 mmHg (lit.)
Dichte
1.475-1.485 g/mL at 20 °C 1.481 g/mL at 25 °C (lit.)
Dampfdichte
3.3 (vs air)
Dampfdruck
1 mm Hg ( 20 °C)
Brechungsindex
n20/D 1.429(lit.)
Flammpunkt:
>230 °F
storage temp. 
2-8°C
L?slichkeit
water: soluble1,000 g/L at 20°C
pka
-2.6(at 25℃)
Aggregatzustand
Solution
Wichte
1.48 (18/4℃)
Farbe
brown
Wasserl?slichkeit
Miscible with water. Slightly miscible with benzene and toluene. Immiscible with paraffins.
Sensitive 
Light Sensitive & Hygroscopic
maximale Wellenl?nge (λmax)
λ: 240-320 nm Amax: <0.4
Merck 
14,5954
BRN 
1446024
Stabilit?t:
Stable. Moisture sensitive. Incompatible with amines, bases, water, common metals. Releases a substantial amount of heat when diluted with water (add acid to water with care if diluting).
InChIKey
AFVFQIVMOAPDHO-UHFFFAOYSA-N
CAS Datenbank
75-75-2(CAS DataBase Reference)
NIST chemische Informationen
CH3SO3H(75-75-2)
EPA chemische Informationen
Methanesulfonic acid (75-75-2)
Sicherheit
  • Risiko- und Sicherheitserkl?rung
  • Gefahreninformationscode (GHS)
Kennzeichnung gef?hrlicher C
R-S?tze: 34-22-21/22-35
S-S?tze: 26-36-45-1/2-36/37/39
RIDADR  UN 3265 8/PG 2
WGK Germany  1
RTECS-Nr. PB1140000
TSCA  Yes
HazardClass  8
PackingGroup  III
HS Code  29041000
Giftige Stoffe Daten 75-75-2(Hazardous Substances Data)
Toxizit?t LD50 orally in Rabbit: 649 mg/kg LD50 dermal Rabbit 200 - 2000 mg/kg
Bildanzeige (GHS) GHS hazard pictogramsGHS hazard pictograms
Alarmwort Achtung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H290 Kann gegenüber Metallen korrosiv sein. Korrosiv gegenüber Metallen Kategorie 1 Warnung GHS hazard pictogramssrc="/GHS05.jpg" width="20" height="20" /> P234, P390, P404
H302 Gesundheitssch?dlich bei Verschlucken. Akute Toxizit?t oral Kategorie 4 Warnung GHS hazard pictogramssrc="/GHS07.jpg" width="20" height="20" /> P264, P270, P301+P312, P330, P501
H314 Verursacht schwere Ver?tzungen der Haut und schwere Augensch?den. ?tzwirkung auf die Haut Kategorie 1B Achtung GHS hazard pictogramssrc="/GHS05.jpg" width="20" height="20" /> P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
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
P234 Nur im Originalbeh?lter aufbewahren.
P261 Einatmen von Staub vermeiden.
P280 Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.
P301+P312 BEI VERSCHLUCKEN: Bei Unwohlsein GIFTINFORMATIONSZENTRUM/Arzt/... (geeignete Stelle für medizinische Notfallversorgung vom Hersteller/Lieferanten anzugeben) anrufen.
P303+P361+P353 BEI BERüHRUNG MIT DER HAUT (oder dem Haar): Alle kontaminierten Kleidungsstücke sofort ausziehen. Haut mit Wasser abwaschen oder duschen.
P305+P351+P338 BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach M?glichkeit entfernen. Weiter spülen.

Methansulfonsure Chemische Eigenschaften,Einsatz,Produktion Methoden

R-S?tze Betriebsanweisung:

R34:Verursacht Ver?tzungen.
R22:Gesundheitssch?dlich beim Verschlucken.

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.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn m?glich, dieses Etikett vorzeigen).
S1/2:Unter Verschluss und für Kinder unzug?nglich aufbewahren.
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.

Chemische Eigenschaften

Methanesulfonic acid is a colourless or light yellow liquid having a melting point of 20° C, is a strong acid acting corroding but not oxidizing.
Methanesulfonic acid is used in the electroplating industry and for organic syntheses, in particular as a catalyst for alkylations, esterifications, and polymerizations. Beyond that, methanesulfonic acid is used as a starting material for the preparation of methanesulfonyl chloride.

Verwenden

Polymerization catalyst.
Methanesulfonic acid has been developed as an esterification catalyst in place of sulfuric acid for the synthesis of resins in paints and coatings. One of the major advantages of methanesulfonic acid over sulfuric acid is that it is not an oxidizing species.

synthetische

Methanesulfonic acid is produced predominantly by oxidizing methylthiol or dimethyl disulfide using nitric acid, hydrogen peroxide, chlorine or by employing electrochemical processes.

Definition

ChEBI: An alkanesulfonic acid in which the alkyl group directly linked to the sulfo functionality is methyl.

Allgemeine Beschreibung

Methanesulfonic acid (MSA) is a strong organic acid. The chemical oxidation of dimetyl sulfide in the atmosphere leads to the formation of MSA in large quantities. MSA undergoes biodegradation by forming CO2 and sulphate. It is considered a green acid as it is less toxic and corrosive in comparison to mineral acids.1 The aqueous MSA solution has been considered a model electrolyte for electrochemical processes.

Hazard

Toxic by ingestion, skin irritant, corrosiveto tissue.

Sicherheitsprofil

Poison by ingestion and intraperitoneal routes. May be corrosive to skin, eyes, and mucous membranes. Explosive reaction with ethyl vinyl ether. Incompatible with hydrogen fluoride. When heated to decomposition it emits toxic fumes of SOx. See also SULFONATES.

l?uterung methode

Dry the acid, either by azeotropic removal of water with *benzene or toluene, or by stirring 20g of P2O5 with 500mL of the acid at 100o for 0.5hours. Then distil it under vacuum and fractionally crystallise it by partial freezing. Sulfuric acid, if present, can be removed by prior addition of Ba(OH)2 to a dilute solution, filtering off the BaSO4 and concentrating under reduced pressure; and is sufficiently pure for most applications. [Beilstein 4 IV 10.]

Methansulfonsure Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Methansulfonsure Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

Global( 713)Lieferanten
Firmenname Telefon E-Mail Land Produktkatalog Edge Rate
Tangshan Moneide Trading Co., Ltd.
+86-315-8309571 +8615633399667
sales@moneidechem.com China 574 58
Langfang Hawk Techology & Development Co, Ltd.
0316-2224727,2224728,2224729 18631652130;
38755326@qq.com China 23 58
Mascot I.E.Co .,Ltd.
+86-0519-85010339 +8613584504415
info@mascotchem.com China 327 58
Hefei TNJ Chemical Industry Co.,Ltd.
+86-0551-65418671 +8618949823763
sales@tnjchem.com China 34563 58
Hebei Yime New Material Technology Co., Ltd.
+86-66697723 +86-17703311139
admin@china-yime.com China 563 58
Hebei Weibang Biotechnology Co., Ltd
+8615350571055
Sibel@weibangbio.com China 6086 58
ChemFine International Co.,Ltd.
+86-510-82753588 +86-13806194144
info@chemfineinternational.com China 300 58
Hebei Weibang Biotechnology Co., Ltd
+8615531157085
abby@weibangbio.com China 8810 58
Hebei Chuanghai Biotechnology Co,.LTD
+86-13131129325
sales1@chuanghaibio.com China 5889 58
Wuhan Bright Chemical Co., Ltd
+86-02785804899 +86-15071395570
alice@brightchemical.com.cn China 93 58

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