542-90-5 Usage
Chemical Properties
Different sources of media describe the Chemical Properties of 542-90-5 differently. You can refer to the following data:
1. clear colorless liquid
2. Ethyl thiocyanate is a liquid. Onion odor
Uses
Ethyl thiocyanate was used in the synthesis of hydrogen cyanide by undergoing in situ reduction with dithiothreitol.
Reactivity Profile
Nitric acid violently oxidized a thiocyanate solution [Bretherick, 1979 p. 121]. Caution should be exercised in treating a thiocyanate with an oxidizing agent such as a peroxide or chlorate as such mixtures have been known to explode.
Health Hazard
Ethylthiocyanate is highly toxic if ingested.
Fire Hazard
When heated to decomposition, Ethylthiocyanate emits very toxic fumes of oxides of nitrogen and sulfur.
Safety Profile
Poison by ingestion,
subcutaneous, intraperitoneal, and
intravenous routes. When heated to
decomposition it emits very toxic fumes of
NO, and SOx. See also THIOCYANATES.
Potential Exposure
This thiocyanate material is used as an
agricultural insecticide
Shipping
UN2929 Toxic liquids, flammable, organic,
n.o.s., Hazard class: 6.1; Labels: 6.1-Poison Inhalation
Hazard, 3-Flammable liquid, Technical Name Required
Purification Methods
Fractionally distil the ester at atmospheric pressure. [Beilstein 2 IV 1218.] (CARE LACHRYMATOR.)
Incompatibilities
Incompatible with oxidizers (chlorates,
nitrates, peroxides, permanganates, perchlorates, chlorine,
bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases,
strong acids, oxoacids, and epoxides. Esters are generally
incompatible with nitrates. Moisture may cause hydrolysis
or other forms of decomposition. Caution should be exercised in treating a thiocyanate with an oxidizing agent such
as a peroxide or chlorate as such mixtures have been
known to explode
Waste Disposal
In accordance with 40CFR
165 recommendations for the disposal of pesticides and
pesticide containers. Must be disposed properly by following package label directions or by contacting your local or
federal environmental control agency, or by contacting
your regional EPA office
Check Digit Verification of cas no
The CAS Registry Mumber 542-90-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,4 and 2 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 542-90:
(5*5)+(4*4)+(3*2)+(2*9)+(1*0)=65
65 % 10 = 5
So 542-90-5 is a valid CAS Registry Number.
542-90-5Relevant articles and documents
Transformation of tertiary amines into alkylating reagents by treatment with 2-chloro-4,6-dimethoxy-1,3,5-triazine. A synthetic application of side-reaction accompanying coupling by means of 4-(4,6-dimethoxy-[1,3,5] triazin-2-yl)-4-methyl-morpholin-4-ium chloride (DMTMM)
Kolesinska,Kaminski
experimental part, p. 2115 - 2123 (2009/04/07)
Mild reaction conditions are described for the preparation of a number of alkyl chlorides and 2-dialkyl(aryl)amino-4,6-dirnethoxy-1,3,5-triazines by dealkylation of quaternary triazinylammonium chlorides formed as reactive intermediates in reaction of tertiary amines with 2-chloro-4,6-dimethoxy-1,3,5- triazine. The high selectivity of substitution was observed within the reactivity order of the alkyl groups: benzyl ～ allyl > methyl > n-alkyl. Studies on dealkylation of S-(-)-J-dimethyl-(1-phenylethyl)amine to R-(+)-1-chloro-1-phenylethane revealed that reaction proceeded with an inversion of configuration on the carbon atom as may be expected for SN2 type substitution. The scope of reaction was extended by exchange of anion in quaternary triazinylammonium chlorides with 1-, SCN-, C6H5O-, CH3COO- followed by N-dealkylation step.
NOVEL REACTIONS OF PENTACOORDINATE PHOSPHORUS SYSTEMS DERIVED FROM PYROCATECHOL
Skowronska, A.,Burski, J.,Krawczyk, E.,Pakulski, M.
, p. 119 - 126 (2007/10/02)
Monocyclic chlorophosphoranes 1 and 2 have been used as models for investigations of nucleophilic displacement reactions at the pentacoordinate phosphorus atom.The chlorine ligands of 1 and 2 can be exchanged by nucleophiles under very mild conditions.Synthesis of the pentacoordinate phosphorus systems 4 and 5 via the reactions of 1 and 2 with a variety of nucleophiles is demonstrated.Special attention is paid to the reactions of chlorophosphoranes with such nucleophiles as organic phosphorus acids and thiocyanates.
