71000-82-3 Usage
Description
Cyanic acid is a class of colorless liquids with slight odors, known for its toxicity when inhaled and its irritating effects on skin, eyes, and mucous membranes. Upon decomposition at high temperatures, it emits toxic nitric oxide and cyanide fumes and may also be combustible.
Uses
Used in Chemical Production:
Cyanic acid is utilized as a key chemical intermediate for the synthesis of various other chemicals. Its properties make it a valuable component in the production of a wide range of chemical compounds.
Used in Pharmaceutical Industry:
In the pharmaceutical industry, cyanic acid is used as a building block for the development of new drugs. Its reactivity and ability to form various chemical structures make it a useful precursor in medicinal chemistry.
Used in Research and Development:
Cyanic acid is employed as a research chemical for studying its properties and potential applications in various fields. Its unique characteristics and reactivity make it an interesting subject for scientific investigation.
Used in Analytical Chemistry:
Cyanic acid is used as a reagent in analytical chemistry for the detection and quantification of certain elements and compounds. Its ability to form complexes with specific substances makes it a valuable tool in analytical processes.
Used in Environmental Applications:
Cyanic acid can be used in environmental applications for the detection and monitoring of pollutants. Its reactivity with certain toxic substances allows for its use in environmental testing and analysis.
Used in Material Science:
In material science, cyanic acid is used for the development of new materials with specific properties. Its ability to form various chemical structures contributes to the creation of innovative materials with unique characteristics.
Air & Water Reactions
Most react with water to generate highly toxic fumes.
Reactivity Profile
Isocyanates and thioisocyanates are incompatible with many classes of compounds, reacting exothermically to release toxic gases. Reactions with amines, aldehydes, alcohols, alkali metals, ketones, mercaptans, strong oxidizers, hydrides, phenols, and peroxides can cause vigorous releases of heat. Acids and bases initiate polymerization reactions in these materials. Some isocyanates react with water to form amines and liberate carbon dioxide. Base-catalysed reactions of isocyanates with alcohols should be carried out in inert solvents. Such reactions in the absence of solvents often occur with explosive violence [Wischmeyer1969].
Health Hazard
TOXIC; inhalation, ingestion or contact (skin, eyes) with vapors, dusts or substance may cause severe injury, burns or death. Bromoacetates and chloroacetates are extremely irritating/lachrymators. Reaction with water or moist air will release toxic, corrosive or flammable gases. Reaction with water may generate much heat that will increase the concentration of fumes in the air. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.
Fire Hazard
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. Vapors form explosive mixtures with air: indoors, outdoors and sewers explosion hazards. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapors may travel to source of ignition and flash back. Substance will react with water (some violently) releasing flammable, toxic or corrosive gases and runoff. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated or if contaminated with water.
Check Digit Verification of cas no
The CAS Registry Mumber 71000-82-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,0,0 and 0 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 71000-82:
(7*7)+(6*1)+(5*0)+(4*0)+(3*0)+(2*8)+(1*2)=73
73 % 10 = 3
So 71000-82-3 is a valid CAS Registry Number.
InChI:InChI=1/CHNO/c2-1-3/h3H/p-1
71000-82-3Relevant articles and documents
Synthesis, application and AIE properties of novel fluorescent tetraoxocalix[2]arene[2]triazine: The detection of a hazardous anion, cyanate
Bozkurt, Selahattin,Halay, Erkan
, (2020/10/19)
A highly effective, new heterocalixarene fluorescent receptor comprised of 2-(2-aminophenyl)benzothiazole and tetraoxacalix[2]arene[2]triazine was designed and synthesized by one-step reaction. The sensor candidate exhibiting aggregation induced emission (AIE) was tested for its photophysical behaviour towards detection of various anions. The results showed that our receptor undergo AIE in >40% H2O-DMSO along with large pseudo Stokes shift (Δλ = 219 nm) and exhibit selective and sensitive detection towards hazardous cyanide's oxidation product, cyanate (CNO-) ion over other tested anions. The blue-shifted fluorescence emission (λem = 492 nm) enhancement with large Stokes shift (Δλ = 144 nm) was observed with the increase in cyanate concentration. The synthesized turn-on sensor towards cyanate detection could be applied in real sample analyses as an improvement to the method currently carried out by international standards and hereby a different approach has been made for the detection of cyanide through its oxidation form, cyanate.
A Multifunctional Bimetallic Molecular Device for Ultrasensitive Detection, Naked-Eye Recognition, and Elimination of Cyanide Ions
Chow, Cheuk-Fai,Ho, Pui-Yu,Wong, Wing-Leung,Gong, Cheng-Bin
, p. 12984 - 12990 (2015/09/07)
A new bimetallic FeII-CuII complex was synthesized, characterized, and applied as a selective and sensitive sensor for cyanide detection in water. This complex is the first multifunctional device that can simultaneously detect cyanide ions in real water samples, amplify the colorimetric signal upon detection for naked-eye recognition at the parts-per-million (ppb) level, and convert the toxic cyanide ion into the much safer cyanate ion in situ. The mechanism of the bimetallic complex for high-selectivity recognition and signaling toward cyanide ions was investigated through a series of binding kinetics of the complex with different analytes, including CN-, SO42-, HCO3-, HPO42-, N3-, CH3COO-, NCS-, NO3-, and Cl- ions. In addition, the use of the indicator/catalyst displacement assay (ICDA) is demonstrated in the present system in which one metal center acts as a receptor and inhibitor and is bridged to another metal center that is responsible for signal transduction and catalysis, thus showing a versatile approach to the design of new multifunctional devices.
Oxidation of thiocyanate with H2O2 catalyzed by [RuIII(edta)(H2O)]-
Chatterjee, Debabrata,Paul, Barnali,Mukherjee, Rupa
supporting information, p. 10056 - 10060 (2013/08/23)
The [RuIII(edta)(H2O)]- (edta4- = ethylenediaminetetraacetate) complex is shown to catalyze the oxidation of thiocyanate (SCN-) with H2O2 mimicking the action of peroxidases. The kinetics of the catalytic oxidation process was studied by using stopped-flow and rapid scan spectrophotometry as a function of [RuIII(edta)], [H2O2], [SCN-], pH (3.2-9.1) and temperature (15-30 °C). Spectral analyses and kinetic data are suggestive of a catalytic pathway in which hydrogen peroxide reacts directly with thiocyanate coordinated to the RuIII(edta) complex. Catalytic intermediates such as [RuIII(edta)(OOH)]2- and [Ru V(edta)(O)]- were found to be non-reactive in the oxidation process under the specified conditions. Formation of SO 42- and OCN- was identified as oxidation products in ESI-MS experiments. A detailed mechanism in agreement with the spectral and kinetic data is presented. The Royal Society of Chemistry 2013.