Zitronensure
Bezeichnung:Zitronensure
CAS-Nr77-92-9
Englisch Name:Citric acid
CBNumberCB9854361
SummenformelC6H8O7
Molgewicht192.12
MOL-Datei77-92-9.mol
Synonyma
Zitronensure
2-Hydroxy-1,2,3-propantricarbons?ure
beta-Hydroxytricarballyls?ure
Zitronensure physikalisch-chemischer Eigenschaften
Schmelzpunkt | 153-159 °C (lit.) |
Siedepunkt | 248.08°C (rough estimate) |
Dichte | 1.67 g/cm3 at 20 °C |
Dampfdichte | 7.26 (vs air) |
Dampfdruck | <0.1 hPa (20 °C) |
Brechungsindex | 1.493~1.509 |
FEMA | 2306 | CITRIC ACID |
Flammpunkt | 100 °C |
storage temp. | 2-8°C |
Löslichkeit | Citric acid also dissolves in absolute (anhydrous) ethanol (76 parts of citric acid per 100 parts of ethanol) at 15 °C. |
Aggregatzustand | grit |
pka | 3.14(at 20℃) |
Farbe | White |
Geruch (Odor) | Odorless |
PH | 3.24(1 mM solution);2.62(10 mM solution);2.08(100 mM solution); |
Geruchsart | odorless |
Explosionsgrenze | 8%, 65°F |
Wasserlöslichkeit | soluble in Water (1174g/L at 10°C, 1809g/L at 30°C, 3825g/L at 80°C). |
Kennzeichnung gefährlicher | Xi,C,T |
R-Sätze: | 41-36/37/38-36/38-37/38-34-36-35-61-60 |
S-Sätze: | 26-39-37/39-24/25-36/37/39-45-36-53 |
RIDADR | UN 1789 8/PG 3 |
WGK Germany | 1 |
RTECS-Nr. | GE7350000 |
F | 9 |
TSCA | Yes |
HS Code | 2918 14 00 |
Giftige Stoffe Daten | 77-92-9(Hazardous Substances Data) |
Toxizität | LD50 in mice, rats (mmol/kg): 5.0, 4.6 i.p. (Gruber, Halbeisen) |
Zitronensure Anbieter Lieferant Produzent Hersteller Vertrieb Händler.
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