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Melamin Produkt Beschreibung

Melamine Struktur
108-78-1
CAS-Nr.
108-78-1
Bezeichnung:
Melamin
Englisch Name:
Melamine
Synonyma:
Aero;Cymel;Teoharn;MELANIN;Melamin;Theoharn;Melamine;NSC 2130;pluragard;hicophorpr
CBNumber:
CB6324023
Summenformel:
C3H6N6
Molgewicht:
126.12
MOL-Datei:
108-78-1.mol

Melamin Eigenschaften

Schmelzpunkt:
>300 °C (lit.)
Siedepunkt:
224.22°C (rough estimate)
Dichte
1.573
Dampfdruck
66.65 hPa (315 °C)
Brechungsindex
1.872
Flammpunkt:
>110°C
storage temp. 
no restrictions.
Löslichkeit
water: soluble25mg/mL, clear to slightly hazy, colorless
pka
5(at 25℃)
Aggregatzustand
Fine Crystalline Powder
Farbe
White
PH
7-8 (32g/l, H2O, 20℃)
Wasserlöslichkeit
3 g/L (20 ºC)
Merck 
14,5811
BRN 
124341
Stabilität:
Stable. Incompatible with strong acids, strong oxidizing agents. Nonflammable.
InChIKey
JDSHMPZPIAZGSV-UHFFFAOYSA-N
CAS Datenbank
108-78-1(CAS DataBase Reference)
NIST chemische Informationen
1,3,5-Triazine-2,4,6-triamine(108-78-1)
IARC
2B (Vol. Sup 7, 73, 119) 2019
EPA chemische Informationen
Melamine (108-78-1)
Sicherheit
  • Risiko- und Sicherheitserklärung
  • Gefahreninformationscode (GHS)
Kennzeichnung gefährlicher Xi,Xn
R-Sätze: 43-44-20/21
S-Sätze: 36/37
RIDADR  3263
WGK Germany  1
RTECS-Nr. OS0700000
Selbstentzündungstemperatur >600 °C
TSCA  Yes
PackingGroup  III
HS Code  29336980
Giftige Stoffe Daten 108-78-1(Hazardous Substances Data)
Toxizität LD50 orally in Rabbit: 3161 mg/kg LD50 dermal Rabbit > 1000 mg/kg
Bildanzeige (GHS)
Alarmwort
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H303 May be harmfulif swallowed Acute toxicity,oral Category 5 P312
Sicherheit

Melamin Chemische Eigenschaften,Einsatz,Produktion Methoden

ERSCHEINUNGSBILD

FARBLOSE BIS WEISSE KRISTALLE

PHYSIKALISCHE GEFAHREN

Staubexplosion der pulverisierten oder granulierten Substanz in Gemischen mit Luft möglich.

CHEMISCHE GEFAHREN

Zersetzung beim Erhitzen oder beim Verbrennen unter Bildung von giftigen und reizenden Stoffen einschließlich Cyanwasserstoff, Stickoxide und Ammoniak.

ARBEITSPLATZGRENZWERTE

TLV nicht festgelegt.
MAK nicht festgelegt.

INHALATIONSGEFAHREN

Eine belästigende Partikelkonzentration in der Luft kann schnell erreicht werden beim Dispergieren, vor allem als Pulver.

WIRKUNGEN NACH WIEDERHOLTER ODER LANGZEITEXPOSITION

Nach Verschlucken größerer Mengen: Möglich sind Auswirkungen auf die Nieren und die Blase mit nachfolgender Bildung von Steinen.

LECKAGE

Persönliche Schutzausrüstung: Atemschutzgerät, P2-Filter für schädliche Partikel. Verschüttetes Material in verschließbaren Behältern sammeln; falls erforderlich durch Anfeuchten Staubentwicklung verhindern. Reste sorgfältig sammeln. An sicheren Ort bringen.

R-Sätze Betriebsanweisung:

R43:Sensibilisierung durch Hautkontakt möglich.
R44:Explosionsgefahr bei Erhitzen unter Einschluss.
R20/21:Gesundheitsschädlich beim Einatmen und bei Berührung mit der Haut.

S-Sätze Betriebsanweisung:

S36/37:Bei der Arbeit geeignete Schutzhandschuhe und Schutzkleidung tragen.

Beschreibung

Melamine-formaldehyde resin (MFR) is an active ingredient of strong (reinforced) plasters. Sensitization was reported in a plaster-room technician, who applied resin-reinforced pIaster casts, and in dental technicians. MFR was contained in a strong dental pIaster used for mouldings. Used as a textile finish res in, it was also found to be an allergen in a women who replaced clothes in a store. MFR also releases formaldehyde, which may be the sensitizer.

Chemische Eigenschaften

White Solid

Chemische Eigenschaften

Melamine is a white crystalline solid

Verwenden

A compound that forms synthetic resins with formaldehyde

Verwenden

Forms synthetic resins with formaldehyde.

Verwenden

It is used to make high-pressure laminating resins (e.g., decorative countertops), molded compounds (e.g., dinnerware), and surface coating resins (e.g., appliance finishes and automotive topcoats). Additional major products are textile and paper treatment resins. Miscellaneous uses include adhesive resins for gluing lumber, plywood, and flooring, and resins for leather tanning agents. Melamine, melamine cyanurate, other melamine salts, and guanidine compounds are currently the most used group of nitrogencontaining flame retardants. Melamine is used as a flame retardant additive for polypropylene and polyethylene. Melamine cyanurate is employed commercially as a flame retardant for polyamides and terephthalates.

Vorbereitung Methode

The compound now is synthesized from urea.

Definition

A white solid organic compound whose molecules consist of a sixmembered heterocyclic ring of alternate carbon and nitrogen atoms with three amino groups attached to the carbons. Condensation polymerization with methanal or other aldehydes produces melamine resins, which are important thermosetting plastics.

Definition

melamine: A white crystalline compound,C3N6H6. Melamine is a cycliccompound having a six-memberedring of alternating C and N atoms,with three NH2 groups. It can becopolymerized with methanal to givethermosetting melamine resins,which are used particularly for laminatedcoatings.

Vorbereitung Methode

Melamine is prepared almost exclusively by the urea process—the action of ammonia on urea. It is produced worldwide.

Definition

ChEBI: A trimer of cyanamide, with a 1,3,5-triazine skeleton.

Allgemeine Beschreibung

Colorless to white monoclinic crystals or prisms or white powder. Sublimes when gently heated.

Air & Water Reaktionen

Insoluble in water.

Reaktivität anzeigen

Melamine is incompatible with strong oxidizing agents and strong acids . Neutralizes acids in exothermic reactions to form salts plus water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen may be generated in combination with strong reducing agents, such as hydrides.

Hazard

Toxic by ingestion, skin, and eye irritant. Questionable carcinogen.

Brandgefahr

Literature sources indicate that Melamine is nonflammable.

Kontakt-Allergie

Melamine-formaldehyde resin (MFR) results from condensation of melamine and formaldehyde. It is anactive ingredient of strong (reinforced) plasters, such as industrial or some dental plasters used for molding.It is also used as a textile finish resin. MFR acts as an allergen generally because of formaldehyde releasing (see Chap. 40)

Sicherheitsprofil

Moderately toxic by ingestion and intraperitoneal routes. An eye, skin, and mucous membrane irritant. Causes dermatitis in humans. Questionable carcinogen with experimental carcinogenic and tumorigenic data. Experimental reproductive effects. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx and CN-.

mögliche Exposition

Manufactured from urea, melamine is used in the manufacture of plastics, melamineformaldehyde resins; rubber, synthetic textiles; laminates, adhesives, and molding compound

Carcinogenicity

A bioassay of melamine was conducted in rats and mice by NTP. Male F344 rats and B6C3F1 mice were administered melamine in their diets at concentrations of 2250 or 4500 ppm daily for 103 weeks.Female rats were fed 4500 or 9000 ppm melamine. At the end of 111 weeks, surviving animals were killed and examined.

läuterung methode

Crystallise Melamine from water or dilute aqueous NaOH. It sublimes at ~240o on prolonged heating. [Beilstein 26 I 74, 26 II 132, 26 III/IV 1253.]

Inkompatibilitäten

Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. Melamine neutralizes acids in exothermic reactions to form salts plus water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen may be generated in combination with strong reducing agents such as hydrides, nitrides, alkali metals, and sulfides.

Melamin Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Melamin Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global( 439)Lieferanten
Firmenname Telefon Fax E-Mail Land Produktkatalog Edge Rate
Qingdao Trust Agri Chemical Co.,Ltd
13573296305 008613573296305
0532-87927000 aroma@qdtrustagri.com CHINA 190 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com China 22607 55
Hefei TNJ Chemical Industry Co.,Ltd.
+86-0551-65418679
86-0551-65418697 info@tnjchem.com China 3000 55
Shanghai Zheyan Biotech Co., Ltd.
18017610038
zheyansh@163.com CHINA 3623 58
Hubei Jusheng Technology Co.,Ltd.
86-18871470254
027-59599243 linda@hubeijusheng.com CHINA 28229 58
Jinan Finer Chemical Co., Ltd
+8615508631887 +86-531-88989536
+86-531-88989539 sales@finerchem.com CHINA 1735 58
Xiamen AmoyChem Co., Ltd
+86 592-605 1114
sales@amoychem.com CHINA 6369 58
Hubei xin bonus chemical co. LTD
86-13657291602
027-59338440 linda@hubeijusheng.com CHINA 23035 58
Shandong chuangyingchemical Co., Ltd.
18853181302
sale@chuangyingchem.com CHINA 5917 58
Standardpharm Co. Ltd.
86-714-3992388
overseasales1@yongstandards.com United States 14344 58

108-78-1(Melamin)Verwandte Suche:


  • 2,4,6-TRIAMINO-1,3,5-TRIAZINE FOR SYNTHE
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  • hicophorpr
  • Isomelamine
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  • MELAMINEANALYTICAL STANDARD 99.8+%
  • MELAMINE (FINE GRIND)
  • TRIAMINO-S-TRIAZINE
  • Melamin
  • 1,3,5-Triazine-2,4,6-triamine
  • 2,4,6-Triamino-1,3,5-triazine
  • 2,4,6-Triamino-s-triazine
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