Butan-1,2,3,4-tetracarbonsure Chemische Eigenschaften,Einsatz,Produktion Methoden
R-S?tze Betriebsanweisung:
R22:Gesundheitssch?dlich beim Verschlucken.
R36:Reizt die Augen.
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.
S37/39:Bei der Arbeit geeignete Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
Chemische Eigenschaften
White leaf-shaped or needle-shaped crystals. melting point 236-237℃ for dextrorotatory-levorotatory type, 189℃ for endocyclic type. Solubility of the product in water (g/100g water): 30℃, 18.5; 50℃, 45.5; 70℃, 81.8. Soluble in ethanol. There is almost no hygroscopicity, and the purity does not decrease when left for more than two years.
Verwenden
1,2,3,4-Butanetetracarboxylic acid is used as a cross linking agent to prepare cotton cellulose in order to improve anti-prilling and flame retardant properties. It is used as a spacer in the cross-linking of titania nanoparticles to cotton. Further, it is used as a nonformaldehyde durable press finishing agent.
synthetische
1,2,3,4-butanetetracarboxylic acid is obtained by oxidation of tetrahydrophthalic anhydride.
1,2,3,4-butanetetracarboxylic acid is prepared by oxidative cleavage of tetraphthalic acid or anhydride by oxidation with ozone-containing gas, followed by oxygen-containing gas, with the mixture then being heated with a peroxide, e.g. H2 O2, at 100° C. to produce the butanetetracarboxylic acid.
Process for preparing 1,2,3,4-butanetetracarboxylic acid
Allgemeine Beschreibung
Leaflets (from water) or white powder.
Air & Water Reaktionen
Soluble in water.
Health Hazard
ACUTE/CHRONIC HAZARDS: When heated to decomposition 1,2,3,4-Butanetetracarboxylic acid emits acrid smoke and irritating fumes.
Brandgefahr
Flash point data for 1,2,3,4-Butanetetracarboxylic acid are not available; however, 1,2,3,4-Butanetetracarboxylic acid is probably combustible.
Butan-1,2,3,4-tetracarbonsure Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Kupfer
cis-1,2,3,6-Tetrahydrophthalsureanhydrid
Salpetersure
Ammoniumvanadat
3,4-Furandiacetic acid, tetrahydro-2,5-dioxo-, 3,4-diethyl ester
Butanedioic acid, bromo-, diethyl ester
1,2,3,6-Tetrahydrophthalsureanhydrid
Downstream Produkte
