Citric acid monohydrate , Analysis standard , 5949-29-1

Synonym(s):
2-Hydroxypropane-1,2,3-tricarboxylic acid, Hydroxytricarballylic acid;Citric acid monohydrate

CAS NO.：5949-29-1

Empirical Formula: C6H10O8

Molecular Weight: 210.139

MDL number: MFCD00008765

EINECS: 200-662-2

PRODUCT Properties

• Melting point: -94 °C(lit.)
• Boiling point: 56 °C760 mm Hg(lit.)
• Density: 0.791 g/mL at 25 °C(lit.)
• vapor density: 2 (vs air)
• vapor pressure: 184 mm Hg ( 20 °C)
• refractive index: n20/D 1.359(lit.)
• Flash point: 1 °F
• storage temp.: no restrictions.
• solubility: Citric Acid Monohydrate is very soluble in water, freely soluble in ethanol and sparingly soluble in ether.
• form: Solid
• pka: 3.138, 4.76, 6.401
• Specific Gravity: 0.810 (20/4℃)
• color: White
• PH: 1.85 (50g/l, H2O, 25℃)
• Odor: Typical, practically odorless
• Water Solubility: 1630 g/L (20 oC) ;H2O: soluble 54% (w/w) at 10°C (Citric acid in water)
• Sensitive: Hygroscopic
• Merck: 14,2326
• BRN: 4018641
• Stability: Stable. Incompatible with oxidizing agents, bases, reducing agents, nitrates.
• InChIKey: YASYEJJMZJALEJ-UHFFFAOYSA-N

Description and Uses

Citric Acid Monohydrate is a tricarboxylic acid found in citrus fruits. Citric acid is used as an excipient in pharmaceutical preparations due to its antioxidant properties. It maintains the stability of active ingredients and is used as a preservative. It is also used as an acidulant to control pH and acts as an anticoagulant by chelating calcium in the blood. Additionally, Citric Acid Monohydrate is used as an acidulating, food additive, and synergist in antioxidant mixtures.

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H319-H335
• Precautionary statements: P261-P264-P271-P280-P304+P340+P312-P305+P351+P338
• Hazard Codes: F,Xi
• Risk Statements: 11-36-66-67-41-36/37/38-37/38
• Safety Statements: 9-16-26-37/39-36/37/39-36
• RIDADR: UN 1090 3/PG 2
• WGK Germany: 1
• RTECS: AL3150000
• TSCA: Yes
• HS Code: 29181400
• Toxicity: LD50 orally in Rabbit: 3000 mg/kg