Citric Acid Anhydrous Powder

Chemical Properties

Melting point	153-159 °C (lit.)
Boiling point	248.08°C (rough estimate)
Density	1.67 g/cm3 at 20 °C
bulk density	560kg/m3
vapor density	7.26 (vs air)
vapor pressure	<0.1 hPa (20 °C)
refractive index	1.493~1.509
FEMA	2306 \| CITRIC ACID
Flash point	100 °C
storage temp.	2-8°C
solubility	Citric acid also dissolves in absolute (anhydrous) ethanol (76 parts of citric acid per 100 parts of ethanol) at 15 °C.
form	grit
pka	3.14(at 20℃)
color	White
Odor	Odorless
PH	3.24(1 mM solution);2.62(10 mM solution);2.08(100 mM solution);
biological source	synthetic
Odor Type	odorless
explosive limit	8%, 65°F
Water Solubility	soluble in Water (1174g/L at 10°C, 1809g/L at 30°C, 3825g/L at 80°C).
Sensitive	Hygroscopic
λmax	λ: 260 nm Amax: 0.20 λ: 280 nm Amax: 0.10
JECFA Number	218
Merck	14,2326
BRN	782061
Stability	Stable. Incompatible with bases, strong oxidizing agents, reducing agents, metal nitrates.
InChIKey	KRKNYBCHXYNGOX-UHFFFAOYSA-N
LogP	-1.64
CAS DataBase Reference	77-92-9(CAS DataBase Reference)
NIST Chemistry Reference	1,2,3-Propanetricarboxylic acid, 2-hydroxy-(77-92-9)
EPA Substance Registry System	Citric acid (77-92-9)

Hazard Codes	Xi,C,T
Risk Statements	41-36/37/38-36/38-37/38-34-36-35-61-60
Safety Statements	26-39-37/39-24/25-36/37/39-45-36-53
RIDADR	UN 1789 8/PG 3
WGK Germany	1
RTECS	GE7350000
F	9
TSCA	Yes
HS Code	2918 14 00
Hazardous Substances Data	77-92-9(Hazardous Substances Data)
Toxicity	LD50 in mice, rats (mmol/kg): 5.0, 4.6 i.p. (Gruber, Halbeisen)