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CAS RN: 77-92-9 | Product Number: C1949

Citric Acid

Purity: >98.0%(T)
5   4   ≥20 

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Product Number C1949
Purity / Analysis Method >98.0%(T)
Molecular Formula / Molecular Weight C__6H__8O__7 = 192.12  
Physical State (20 deg.C) Solid
CAS RN 77-92-9
Reaxys Registry Number 782061
PubChem Substance ID 87558243
Merck Index (14) 2326
Appearance White to Almost white powder to crystal
Purity(Neutralization titration) min. 98.0 %
Solubility in Methanol almost transparency
Properties (reference)
Melting Point 154 °C
Solubility in water Completely soluble
Degree of solubility in water 590 g/l   20 °C
Solubility (very soluble in) Alcohol
Solubility (soluble in) Ether,Chloroform
Solubility (insoluble in) Benzene
Pictogram Pictogram
Signal Word Warning
Hazard Statements H319 : Causes serious eye irritation.
Precautionary Statements P264 : Wash skin thoroughly after handling.
P280 : Wear eye protection/ face protection.
P337 + P313 : If eye irritation persists: Get medical advice/ attention.
P305 + P351 + P338 : IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Related Laws:
RTECS# GE7350000
Transport Information:
HS Number 2918.14.0000
Reagent for coughing model

Mechanisms of capsaicin- and citric-acid-induced cough reflexes in guinea pigs

M. Tanaka, K. Maruyama, J. Pharmacol. Sci. 2005, 99, 77.

Experimental model of allergic asthma

S. Franova, M. Joskova, V. Sadlonova, D. Pavelcikova, L. Mesarosova, E. Novakova, M. Sutovska, Adv. Exp. Med. Biol. 2013, 756, 49.

Cough reflex induced by microinjection of citric acid into the larynx of guinea pigs: new coughing model

M. Tanaka, K. Maruyama, J. Pharmacol. Sci. 2003, 93, 465.

PubMed Literature

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