Formaldehyde was first reported by the Russian chemist Aleksandr Butlerov (1828-1886), but it was conclusively identified by August Wilhelm von Hofmann.
Product Name: Alizarin Fluorine Blue (CAS NO.3952-78-1)
Molecular Formula: C19H15NO8
Molecular Weight: 385.32g/mol
Mol File: 3952-78-1.mol
Appearance: Orange-brown crystals
Melting Point: -185 °C (dec.)
Boiling point: 687.1 °C at 760 mmHg
Flash Point: 369.4 °C
Density: 1.641 g/cm3
Water Solubility: Slightly soluble (0.2 g/L)
Stability: Incompatible with strong oxidizing agents
Surface Tension: 95.8 dyne/cm
Enthalpy of Vaporization: 105.81 kJ/mol
Vapour Pressure: 7.94E-20 mmHg at 25°C
H-Bond Donor: 4
H-Bond Acceptor: 9
Product Categories: Photometric Reagents (Complexone); Analytical Chemistry; Anthraquinones; Chelating Reagents; Complexones; Hydroxyanthraquinones
Alizarin Fluorine Blue (CAS NO.3952-78-1) dubbed in 0.5% aqueous solution, an indicator for complexometric titration.
By alizarin and the reaction of iminodiacetic acid: 16g alizarin and 22.5g iminodiacetic acid suspended in 30ml water with 60ml aqueous solution containing 13.5g of sodium hydroxide treatment. While stirring dropping 37% formaldehyde 10ml. A mixture of water diluted to 230ml. Heated to 75 °C, while stirring while dropping 37% formaldehyde, 7ml, insulation 14g. Diluted to 750ml, at 45 °C with 5N hydrochloric acid treatment to no precipitation occurs. Filter out the crystals of crude. The crude product dissolved in distilled water, add sodium hydroxide solution, dissolved, together with hydrochloric acid to make it re-precipitation sedimentation, filtration, washing available pure. Alizarin unreacted ether extraction method available to remove.
|Organism||Test Type||Route||Reported Dose (Normalized Dose)||Effect||Source|
|mouse||LD50||intravenous||170mg/kg (170mg/kg)||Experientia. Vol. 28, Pg. 180, 1972.|
Reported in EPA TSCA Inventory.
A poison by intravenous route. When heated to decomposition it emits toxic vapors of NOx.
Safety Information of Alizarin Fluorine Blue (CAS NO.3952-78-1):
Hazard Codes: Xi
Risk Statements: 36/37/38
36: Irritating to the eyes
37: Irritating to the respiratory system
38: Irritating to the skin
Safety Statements: 24/25-36-26
24: Avoid contact with skin
25: Avoid contact with eyes
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36: Wear suitable protective clothing
Alizarin Fluorine Blue ,its CAS NO. is 3952-78-1,the synonyms is (((3,4-Dihydroxy-2-anthraquinonyl)methyl)imino)di-aceticaci ; [(3,4-Dihydroxy-2-anthraquinonyl)methyl]iminod ; 1,2-Dihydroxy-anthrachinon-3-methylen-iminodiessigsaeure ; Aizarin-3-methylamine-N,N-diaceticacid ; Alizarincompiexone ; Alizarinecomplexon ; Alizarinecomplexone ; Alizarinecomplexonedihydrate .