Melamin
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Melamin Eigenschaften
- Schmelzpunkt:
- >300 °C (lit.)
- Siedepunkt:
- 224.22°C (rough estimate)
- Dichte
- 1.573
- chüttdichte
- 800kg/m3
- Dampfdruck
- 66.65 hPa (315 °C)
- Brechungsindex
- 1.872
- Flammpunkt:
- >110°C
- storage temp.
- no restrictions.
- L?slichkeit
- 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℃)
- Wasserl?slichkeit
- 3 g/L (20 ºC)
- W?rmeleitf?higkeit
- 0.167 W/(m·K) (low dens low k); 0.711 W/(m·K) (high dens high k)
- Merck
- 14,5811
- BRN
- 124341
- Henry's Law Constant
- 5.5×108 mol/(m3Pa) at 25℃, HSDB (2015)
- Stabilit?t:
- Stable. Incompatible with strong acids, strong oxidizing agents. Nonflammable.
- Major Application
- cleaning products
cosmetics
food and beverages
personal care
- InChI
- 1S/C3H6N6/c4-1-7-2(5)9-3(6)8-1/h(H6,4,5,6,7,8,9)
- InChIKey
- JDSHMPZPIAZGSV-UHFFFAOYSA-N
- SMILES
- Nc1nc(N)nc(N)n1
- LogP
- -1.22 at 20℃
- CAS Datenbank
- 108-78-1(CAS DataBase Reference)
- IARC
- 2B (Vol. Sup 7, 73, 119) 2019
- NIST chemische Informationen
- 1,3,5-Triazine-2,4,6-triamine(108-78-1)
- EPA chemische Informationen
- Melamine (108-78-1)
- ECETOC JACC REPORT
- Melamine (108-78-1)
Sicherheit
| Kennzeichnung gef?hrlicher | Xi,Xn | ||
|---|---|---|---|
| R-S?tze: | 43-44-20/21 | ||
| S-S?tze: | 36/37 | ||
| RIDADR | 3263 | ||
| WGK Germany | 1 | ||
| RTECS-Nr. | OS0700000 | ||
| Selbstentzündungstemperatur | >600 °C | ||
| TSCA | TSCA listed | ||
| PackingGroup | III | ||
| HS Code | 29336980 | ||
| Speicherklasse | 11 - Combustible Solids | ||
| Hazard Classifications | Carc. 2 Repr. 2 STOT RE 2 |
||
| Giftige Stoffe Daten | 108-78-1(Hazardous Substances Data) | ||
| Toxizit?t | LD50 orally in Rabbit: 3161 mg/kg LD50 dermal Rabbit > 1000 mg/kg |
Melamin Chemische Eigenschaften,Einsatz,Produktion Methoden
ERSCHEINUNGSBILD
FARBLOSE BIS WEISSE KRISTALLEPHYSIKALISCHE GEFAHREN
Staubexplosion der pulverisierten oder granulierten Substanz in Gemischen mit Luft m?glich.CHEMISCHE GEFAHREN
Zersetzung beim Erhitzen oder beim Verbrennen unter Bildung von giftigen und reizenden Stoffen einschlie?lich Cyanwasserstoff, Stickoxide und Ammoniak.ARBEITSPLATZGRENZWERTE
TLV nicht festgelegt.MAK nicht festgelegt.
INHALATIONSGEFAHREN
Eine bel?stigende Partikelkonzentration in der Luft kann schnell erreicht werden beim Dispergieren, vor allem als Pulver.WIRKUNGEN NACH WIEDERHOLTER ODER LANGZEITEXPOSITION
Nach Verschlucken gr??erer Mengen: M?glich sind Auswirkungen auf die Nieren und die Blase mit nachfolgender Bildung von Steinen.LECKAGE
Pers?nliche Schutzausrüstung: Atemschutzger?t, P2-Filter für sch?dliche Partikel. Verschüttetes Material in verschlie?baren Beh?ltern sammeln; falls erforderlich durch Anfeuchten Staubentwicklung verhindern. Reste sorgf?ltig sammeln. An sicheren Ort bringen.R-S?tze Betriebsanweisung:
R43:Sensibilisierung durch Hautkontakt m?glich.R44:Explosionsgefahr bei Erhitzen unter Einschluss.
R20/21:Gesundheitssch?dlich beim Einatmen und bei Berührung mit der Haut.
S-S?tze 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
Melamine is 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.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
Melamine is prepared almost exclusively by the urea process—the action of ammonia on urea. It is produced worldwide.synthetische
The standard route to melamine is from urea. Urea is heated in the presence of ammonia at 250-350C and 4--20 MPa. The reaction probably involves the simultaneous dehydration and hydration of urea to form cyanamide and ammonium carbamate; trimerization of the cyanamide then leads to melamine:
Thus only 50% of the urea used gives melamine in one step and ammonium carbamate has to be separated and converted to urea for recycling. Despite this limitation, the urea route is the most economical of currently available routes.
Allgemeine Beschreibung
Colorless to white monoclinic crystals or prisms or white powder. Sublimes when gently heated.Air & Water Reaktionen
Insoluble in water.Reaktivit?t 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-.m?gliche Exposition
Manufactured from urea, melamine is used in the manufacture of plastics, melamineformaldehyde resins; rubber, synthetic textiles; laminates, adhesives, and molding compoundCarcinogenicity
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.l?uterung 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.]Inkompatibilit?ten
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
Silica gel
Bifenthrin
Cyanguanidin
4-Chlorbenzaldehyd
POLYAMIDE 6 HPLC 0.005-0.020MM (5-20UM)&
Harnstoff
Methanol solvent
Quarz (SiO2)
Ammoniak, wasserfrei
Downstream Produkte
Early-strength admixture
water proofing agent 703
softener PEG
Fluorescent Brightener BC
REACTIVE GREEN 19
1-Amino-4-(2'-(4',6'-dichlor-s-triazin-2-yl)amino)phenylamino)9,10-dihydro-9,10-dioxoanthracen-2,4'-disulfonsaeure
Various color amino baking enamel A04-9
demulsifier KN-1
modified phenol-formaldehyde resin
Pumping agent
Amino resin varnish
finishing agent KB for polyester viscose blend
anchorage used for glassine paper
PAINT
MELAMINE RESIN
Amino resin paint
conductive coating-composite system of acrylic copolymer and cuprous iodide
Slushing agent,high efficiency
Amino moulding plastic
3,4,5,6-Tetrachlor-2-(1,4,5,8-tetrabrom-6-hydroxy-3-oxoxanthen-9-yl)benzoesure
Trimethylolmelamine Resin
Bornitrid
Melamin Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.
Global( 962)Lieferanten
| Firmenname | Telefon | Land | Produktkatalog | Edge Rate | |
|---|---|---|---|---|---|
| Chongqing Chuandong Chemical (Group) Co. Ltd. | +86-13637972665 |
wxc@cd1958.com | China | 81 | 58 |
| SHANGHAI KEAN TECHNOLOGY CO., LTD. | +8613817748580 |
cooperation@kean-chem.com | China | 40066 | 58 |
| Hebei Chuanghai Biotechnology Co., Ltd | +86-15350571055 |
Sibel@chuanghaibio.com | China | 8738 | 58 |
| Hebei Chuanghai Biotechnology Co,.LTD | +86-86-13131129325 |
sales1@chuanghaibio.com | China | 5218 | 58 |
| Hebei Chuanghai Biotechnology Co., Ltd | +86-17732866630 |
mina@chuanghaibio.com | China | 18126 | 58 |
| Anhui Yiao New Material Technology Co., Ltd | +86-18033737140 +86-17354101231 |
sales1@hbganmiao.com | China | 227 | 58 |
| Henan Bao Enluo International TradeCo.,LTD | +86-17331933971 |
deasea125996@gmail.com | China | 2472 | 58 |
| Anhui Ruihan Technology Co., Ltd | +undefined17756083858 |
daisy@anhuiruihan.com | China | 973 | 58 |
| Hebei Jingbo New Material Technology Co., Ltd | +86-19931165850 |
hbjbtech@163.com | China | 1000 | 58 |
| Shandong Juchuang Chemical Co., LTD | +86-15030412209 |
admin@juchuangchem.com | China | 295 | 58 |
108-78-1(Melamin)Verwandte Suche:
Purin
Cyanamid
1,3,5-Triazin
Calciumcyanamid
(2H3)Methylammoniumchlorid
Cyanguanidin
Bis(amidinoharnstoff)sulfat
Amidinouroniumchlorid
Dimethylammoniumchlorid
Metforminhydrochlorid
1,1-Dimethylguanidinium-sulfat-(2:1)
Methylammoniumchlorid
Trimethylammoniumchlorid
6-Phenyl-1,3,5-triazin-2,4-diamin
1,3,5-Triazin-2,4,6(1H,3H,5H)-trion, Verbindung mit 1,3,5-Triazin-2,4,6-triamin (1:1)
6-Amino-1,3,5-triazin-2,4(1H,3H)-dion
Altretamin
2,4,6-Triethylenimino-1,3,5-triazin
- Melamine, synthesis grade
- Melamine 5g [108-78-1]
- Melamine,2,4,6-Triamino-1,3,5-triazine, sym-Triaminotriazine
- Melamine (250 mg) (2,4,6-Triamino-1,3,5-triazine)
- 1,3,5-Triazin-2,4,6-triaMine
- MelaMine (1.0 Mg/10 ML in 84:16% ACN:H2O)
- 2,4,6-Triamino-1,3,5-triazine, sym-Triaminotriazine
- Cyanuric amide
- Melamine (Micronised)
- MelaMine, 99% 1KG
- 1,3,5-Triazine-2,4,6(1H,3H,5H)-triimine
- 2,4,6-triamino-s-triazin
- 2,4,6-Triaminotriazine
- Melamine standard solution of substance
- Metformin impurity D (Ph Eur)
- Imp. D:melamine
- 2,4,6-Triamino-1,3,5-triazine for synthesis
- Cyanuric triamide
- cyanurictriamide
- Cyanurotriamine
- Cyanurtriamide
- Cynurictriamide
- dg002(amine)
- Hicophor pr
- hicophorpr
- Isomelamine
- NCI-C50715
- pluragard
- s-Triazine, 2,4,6-triamino-
- s-Triazine, 4,6-diamino-1,2-dihydro-2-imino-
- S-Triazinetriamine
- Teoharn
- Theoharn
- Virset 656-4
- virset656-4
- 2 4 6-TRIAMINO-1 3 5-TRIAZIN
- MELAMINE, 99+%
- MELAMINE 99.5%
- MELAMINE 99.5% GR
- MELAMINEANALYTICAL STANDARD 99.8+%
- MELAMINE (FINE GRIND)
- TRIAMINO-S-TRIAZINE
- Melamine
- 2,4,6-Triamino-1,3,5-triazine - Total Dust
- 2,4,6-Triamino-1,3,5-triazine- Respirable Dust
- NSC 2130
- Sabic Melamine
- Metformin Impurity 4(Metformin EP Impurity D)
- Melamine (Metformin Impurity D)
- MELAMINE, 99%MELAMINE, 99%MELAMINE, 99%
- Melamine (Metformin EP Impurity D)
- Melamine Standard
- 1,3,5-Triazine-2,4,6-triamine (Mela
- Melamine Monomer >
- Melamine, 99%, reagent grade
- MelamineSolution,100mg/L,100ml
- Melamine@1000 μg/mL in Water:Diethylamine (80:20)
- stock melamine




