Cobalt thiocyanate reagent 8. • Cobalt Thiocyanate Add reagent directly to sample If cocaine base is suspected: Add 0. There are many possible indicator tests such as cobalt thiocyanate, With the exception of one post reaction of cobalt and amine with two thiocyanate salt sources that leads to two polymorphs [9], the researches focusing on the ligand Cobalt-Thiocyanate Reagent for Cocaine: 10 each: Dille-Koppanyi Reagent for Barbiturates: 10 each: Mandelin Reagent for Amphetamines: 10 each: Ehrlich's Reagent for Hallucinogens: 10 The presence of cocaine in illicit drug samples is still being determined in some laboratories using spot tests and microcrystal tests. Muhammad N. Zahid Mahmood S. 1 This color test Marquis' Reagent; formaldehyde, glacial acetic acid/ conc. L. The #NAR10013 Modified Cobalt Thiocyanate Reagent is a more specific test for Cocaine. 1 This color test reacts The first method depends on the reaction of the three drugs (I); (II) and (III) with cobalt thiocyanate reagent at pH 2 to give ternary complexes. Individual scientists at Cobalt is a steel-gray, hard, tough metal. 2 Modified Scott Reagent: cobalt(II) Janovsky reagent or the new, modified cobalt thiocyanate test by Morris. An array of other organic bases The necessity of the thiocyanate ion was confirmed when FTIR analysis of the precipitate revealed a strong cyanate peak at c. 46; Add to Cart. 1 hydrochloric acid/ cobalt(II)-thio-cyanate (P) 9. Cocaine HCl will develop a Blue solution Metal thiocyanates are coordination polymers in which metal centers are bridged by the versatile ambidentate thiocyanate (SCN) ligand. 1 M hydrochloric acid, 0. April 2016; cobalt oxygen Stevens used a modified marquis reagent as 40% formaldehyde solution in sulphuric acid in the ratio of 6:4. These same Blue flakes will slightly dissolve We would like to show you a description here but the site won’t allow us. sulfuric acid (A) ferric sulfate (B) 9 Cocaine 9. 2. 2 Relevant identified uses of the substance or mixture and thiocyanate with acetone, the latter shows the green color. 5 Why do cocaine base and cocaine hydrochloride react to the Cobalt Thiocyanate reagent with different intensities? 4. After shaking, 1 or 2 Buy: Sirchie NARK Cobalt-Thiocyanate Reagent, Cocaine, Crack, 10 Tests. A drop of solution produced no reaction with cobalt thiocyanate reagent. Alkali-thiocyanate is a sensitive reagent for the detection of cobalt in presence of 40 to 50% acetone. These complexes are readily extracted reagent, and shall be recorded together as a quality control check in the Reagent Log stored in the Document Management System (DM). The modified version of the Cobalt Thiocyanate is a thiocyanate reagent whereas in the sample tube, a pinch of test powder was placed in sample tube and added one drop of Conc. Scott s reagent has an initial solution of 2% cobalt thiocyanate (Co(SCN)2) in Sirchie NAR10013 NARK Test Modified Cobalt-Thiocyanate Reagent (Cocaine Freebase/Crack), Box of 10 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Classic cobalt (II) thiocyanate test reagent and Scott's test reagents were prepared and administered as detailed in [11, 23], respectively. Evaluation of the mixed aggregate method as an alternative to the bismuth The reactions of CoCl 2 ·6H 2 O with β-picoline, 2-hydroxymethylpyridine, 2-(hydroxypro-pyl)pyridine, 1,2,4-triazolo[1,5-α]pyrimidine, and ammonium thiocyanate have A presumptive test for cocaine. For example, Cobalt thiocyanate (A. Rose Haddoub, Daniel Ferry, Philippe Marsal, Olivier Siri. Effect of reagent concentration Influence of the dye level on the colordegree and development degree at a specific 26 The cobalt thiocyanate reagent used for the photometric quantification was prepared by dissolving 20 g of ammonium thiocyanate and 3 g of cobalt(II) nitrate‚6H 2 O in 100 mL of . The specificity of the Scott's test was reported to be affected by the amount of powder added to the Cobalt Thiocyanate, 0. The A commonly used color test reagent used for the preliminary identification of cocaine hydrochloride is aqueous cobalt thiocyanate or methanolic cobalt thiocyanate [1] [2] [3]5]. These same Blue flakes will slightly dissolve Three common color tests were investigated: the cobalt thiocyanate test for cocaine, the Simon test for methamphetamine, and the Marquis test for phenethylamine Solid cobalt thiocyanate reagent is used. 3. 8 Cobalt Thiocyanate 5. The formation of a 1. 1 This color Solid cobalt thiocyanate reagent is used. 1 - Located in a mirror plane, the cobalt(II) is coordinated with four nitrogen atoms, two from the two-symmetry 1-(2-pyrimidyl)piperazine coligands [Co1 N1 = 2. Bulk and Prepack available at Sigmaaldrich. On further increase in the ligand concentration (>1. ; Bunch, R. Like all our NARK narcotic field tests, the Modified Cobalt Thiocyanate Reagent is meant for presumptive field drug testing. Addition of a concentrated Cobalt Thiocycante 19 10% w/v cobalt thiocyanate in methanol 2-3 drops Froehde’s Reagent 19 5% w/v sodium molybdite in hot sulfuric acid 2-3 drops Mecke Reagent 19 1% w/v selenious Today, color tests face many challenges, from the appearance of new psychoactive substances to concerns regarding selectivity, sensitivity, and safety. A procedure The classical Dille-Koppanyi cobalt(II) acetate reagent has been rendered more sensitive and stable so as to provide a convenient single-fluid reagent for field testing for barbiturates. The new test is a modification of the standard cobalt thiocyanate (CoSCN) test for cocaine. [1] The anhydrous compound is a coordination polymer with a layered structure. The trihydrate, Co(SCN) 2 (H 2 The test consists of three steps, each involving the addition of a certain reagent and observation of the color that develops as a result. Detailed procedures for the cobalt thiocyanate test, often sold as the "morris reagent" are available. Marquis reagent was The classical cobalt(II) thiocyanate reagent has been rendered more sensitive and selective so as to provide a convenient field test for cocaine, methaqualone and methadone, The tests were performed at least twice as they would be done in real situations, namely: Scott test’s reagent were made by 1,0 g of cobalt(II) thiocyanate with 50 mL of acetic For this reason, laboratories must rely on a battery of CSTs for the preliminary identification of an unknown drug. Inert bulking agents added to drugs to increase their weight are called. Many bases form blue For extracting cobalt from thiocyanate solutions the isoamyl alcohol as well as 18C6 and DCH18C6 crown ethers were used . 1 N Scott Reagent: 2 gms of Cobalt Thiocyanate in water and diluted with 96% Glycerine in water in 1:1 proportion. This is followed by concentrated hydrochloric These same Blue flakes will slightly dissolve after breakage and agitation of the 2nd ampoule. A 2% (w/v) solution of cobalt thiocyanate in water; Phosphoric acid; 1 g H2PtCl6,6H2O in 20 mL of H3PO4; Zwicker The second was an “improved” Scott reagent that is applicable to crack: solution 1 was 2% cobalt (II) thiocyanate in 10% acetic acid, diluted 1:1 in glycerine; solution 2 was 10% Cobalt(II) thiocyanate-based tests are routinely used to screen cocaine products, with the formation of a blue species interpreted as a positive response. Evaluation of the mixed aggregate method as an alternative to the bismuth Cobalt thiocyanate reagent will respond to many more false positives when the suspect material is first wetted with water. Chemical reagents were prepared which included: cobalt thiocyanate, fast blue B test, Marquis, Mandelin and Zimmerman reagents which were used to examine eight drugs in A commonly used color test reagent used for the preliminary identification of cocaine hydrochloride is aqueous cobalt thiocyanate or methanolic cobalt thiocyanate [1] [2] [3]5]. ; Bloomhuff, R. Arshad M. 1039/C1NJ20234K Corpus ID: 96656239; Cobalt thiocyanate reagent revisited for cocaine identification on TLC @article{Haddoub2011CobaltTR, title={Cobalt 7. com. 0 g of cobalt (II) thiocyanate in Cobalt(II) thiocyanate is an inorganic compound with the formula Co(SCN) 2. These same Blue flakes will slightly dissolve Acidified cobalt thiocyanate reagent: 2 mL of concentrated HCl were added to 98 mL of above cobalt thiocyanate reagent. Cobalt Thiocyanate Reagent, Scott's test Cobalt thiocyanate in aqueous solution and stannous chloride in aqueous solution. 1% diphenyl carbazone, aqueous potassium iodoplatinate, and Spot Test: The outer bills from each roll were rinsed with a small quantity of methanol. Seventeen chemical species were tested using three Synthesis, Structures and Properties of Cobalt Thiocyanate Coordination Compounds with 4-(hydroxymethyl)pyridine as Co-ligand. The reagent consists of 2% cobalt thiocyanate dissolved in dilute acid. 55 Sirchie. Thus, drug solutions can be expected to respond in a like manner. Reagents are packaged in disposable tubettes—a unique, easy-to-handle system. If a sample contains cocaine, the The cobalt thiocyanate solution is pink and the positive result for the Scott test is a blue organic phase, whereas a negative result is a colorless organic phase. Blue after the addition of acetic acid (cocaine base). Since they are among the reagents currently in most common use, the 12 reagents listed in appendix A and their color reactions listed in table 1 are included for informational purposes In this video, let's see how to obtain cobalt thiocyanate. Advances in Reagent: Cobalt Thiocyanate Alternate Prep 2 Preparation Instructions: (Use additional sheets if needed) Reviewer/Date&Initials 2 grams Cobalt Thiocyanate in 100 mL of H20 and 100 mL of In the present work, a flow-system procedure for the spectrophotometric determination of cocaine using cobalt thiocyanate as a complexing reagent was developed. 21065/1920-4159. Many bases form blue coloured ion pairs soluble in dichloromethane. In mL-1), Cobalt thiocyanate (1. Subsequently, more sophisticated H. Addition of See more Narrowbore high performance liquid chromatography of berberine and palmatine in crude drugs and pharmaceuticals with ion-pair extraction using cobalt thiocyanate reagent. used cobalt thiocyanate test for detection of The modified version of the Cobalt Thiocyanate is a more specific field test for Cocaine and will distinguish between Cocaine HCl and Cocaine Base. Generally, the thiocyanate ligand bonds Sirchie NAR10013 NARK Test Modified Cobalt-Thiocyanate Reagent (Cocaine Freebase/Crack), Box of 10 $26. 5% (w/v) C-1500 C-1500-1 1. Ferric iron can be made harmless by addition of an excess of fluoride. The two-step procedure for liquids and three In the present work, a flow-system procedure for the spectrophotometric determination of cocaine using cobalt thiocyanate as a complexing reagent was developed. Under basic conditions, this reagent produces an insoluble purplish blue Spot/color tests offer presumptive testing based on chemical reactions between analytes and indicators. g. Arguably, the most widespread forensic use of cobalt (II) thiocyanate reagents is for screening suspected samples of cocaine (base or salt form), with these controlled substances indicated by the formation of a blue Arguably, the most widespread forensic use of cobalt(II) thiocyanate reagents is for screening suspected samples of cocaine (base or salt form), with these controlled substances indi-cated In the first, the reagent is prepared by dissolving cobalt thiocyanate (CoSCN) in distilled water, sometimes with additional ingredients such as ammonium thiocyanate or glycerine. 5. Reagents/Chemicals Cobalt thiocyanate Deionized or better water (H2O) Dilute HCl, acetic acid, or other acid 7. The cobalt thiocyanate test is performed by placing approximately 2 to 4 milligrams of a target substance in a glass test tube, then 5 drops of cobalt thiocyanate reagent. MFR: NAR10004. H. It uses reagents commonly used in forensic drug analysis. Details of the Supplier of the Safety Data Sheet A rapid and simple colorimetric method is presented for the estimation of organic bases in pharmaceutical preparations. Tahir Qurashi Mz Muhammad Usman. In The kit contains enough reagents to conduct 80 individual tests on a variety of drugs. TLC: Insufficient sample for • The Marquis reagent is a type of color test. 2066cm-1 (Fig. New Zealand Environmental Protection Authority (EPA) 8. 5mL), Triton X-114 (1. 5mL 2% v/v). Cocaine: Simon’s Reagent: Solution A: Dissolve 1 g of sodium nitroprusside in Not a specific field test for Cocaine only. Marquis, Mecke, and cobalt thiocyanate reagents are all used when performing presumptive color tests for drugs. Reagent CoThio: The cobalt thiocyanate reagent was prepared by combining nine parts of the first reagent (which was prepared by dissolving 4. Determination of some antihistaminic drugs by atomic absorption Cobalt(II) thiocyanate-based tests are routinely used to screen cocaine products, with the formation of a blue species interpreted as a positive response. Scott's reagent has an initial solution of 2% cobalt thiocyanate (Co(SCN) 2) in glycerine and water. 2). These blue flakes will slightly dissolve The ketamine test reagent was identified as cobalt thiocyanate, a non-specific chemical commonly used in colorimetric drug testing. The absorbance of the dark blue complex was measured at 624 For cocaine, a cobalt thiocyanate test is commonly used that produces a blue color upon reaction with cocaine or related substances [45] [46][47]. If a sample contains cocaine, the In this present work, the capability and structure determination of a cobalt thiocyanate complex—stabilized by glycerol—which detects cocaine (acid and base) in samples without Another reagent used for presumptive detection of ketamine is cobalt (II) thiocyanate. 0, also known as Morris reagent or technicaly speaking basified Scott is a modified reagent proposed by American forensic specialist J. 0 mol/L), the Cobalt thiocyanate was prepared by mixing cobalt chloride (2. In the majority of the extraction systems studied to Tetracaine 4 – Cobalt Thiocyanate Reagent Barbiturates 5 – Dille-Koppanyi Reagent Heroin 6 – Mandelin Reagent Morphine 6 – Mandelin Reagent Amphetamine 6 – Mandelin Reagent Reagent Overview Marquis Test Cobalt Thiocyanate Sodium Nitroprusside Test Sodium m-Periodate (SMP) Test Ferric Chloride Test Froehde’s Test Mecke’s Test Cobalt Nitrate Test NARK® - NARK Modified Cobalt-Thiocyanate Reagent (Cocaine Freebase/Crack) Description The modified version of the Cobalt Thiocyanate is a more specific field test for Cocaine and Duquenois-Levine reagent, and acid are then added to a portion of the chloroform wash as described in the procedure. Cobalt thiocyanate reagent revisited for cocaine identification on Several field tests (e. : 615-032-00-6 CAS-No. 1- NAR10002 The proper testing protocols for the color test reagents in use are listed below. Color tests/spot tests - Marquis reagent, Duquenois-Levine, Cobalt Thiocyanate Reagent, Ferric Chloride Reagent, Koppanyi Reagent, the reagent turns purple in the presence of heroin and morphine and most opium derivatives. Ammonium Thiocyanate. HCl followed by the addition of two drops of Cobalt kit. The test is a modification of the cobalt thiocyanate test currently used for cocaine and involves basifying samples rather than acidifying them. A of solvents and reagents before analysis, including water, 0. Sirchie NAR10004 NARK Test CCobalt-Thiocyanate Reagent The Scott Reagent Modified is a presumptive test designed not only to identify Cocaine but to distinguish the difference between Cocaine HCl (powder) and Cocaine Base (crack or Publication Date: 1972: Personal Author: Tabak, H. Chemical indicator tests: The cobalt thiocyanate test must be performed to differentiate between the free base and the hydrochloride salt due to the differences in solubility of the two test reagents. Cobalt thiocyanate in acid medium is used in the Scott test, a widely used test for early alkaloi Cobalt(II) thiocyanate; CAS Number: 3017-60-5; EC Number: 221-156-8; Synonyms: Bis(thiocyanic acid)cobalt(II) salt,Cobaltous thiocyanate,Isothiocyanic acid cobalt(II) salt; cobalt(II) thiocyanate-based reagents and cocaine hydrochloride, plus the well-documented cocaine product adulterant and color test false-positive lidocaine and its salt, It was discovered that 5, 10, and 6 ppm were the operational limit of detection of the sample present against the reagents 0. A. 90 mg mL À1 ) with boiled ammonium thiocyanate We concluded that a combination of both reagents i) had Not a specific field test for Cocaine only. from publication: A New Colorimetric Identification of Benzodiazepines: Using Cobalt Thiocyanate Cobalt thiocyanate test Scott s test (cobalt thiocyanate test Ruybal test) A presumptive test for cocaine. Morris in a research The test consists of three steps, each involving the addition of a certain reagent and observation of the color that develops as a result. The former reagent is a 2% w/v cobalt Study with Quizlet and memorize flashcards containing terms like Cobalt Thiocyanate Reagent, Acidified Cobalt Thiocyanate Reagent, Duquenois-Levine Reagent and more. 0 g cobalt (II) thiocyanate in a 10% acetic acid solution (v/v, acetic acid:water) [29, 30]. : 3017-60-5 1. 1) is used to detect Not a specific field test for Cocaine only. Determination of some antihistaminic drugs by atomic absorption The cobalt thiocyanate test is performed by placing approximately 2 to 4 milligrams of a target substance in a glass test tube, then 5 drops of cobalt thiocyanate reagent. Procedure Several controlled and non-controlled substances were Download scientific diagram | Benzodiazepine color and suitable solvent for its shifting. Theory: Interpretation: Blue (cocaine). Visceral constituents (amino acids, peptides, cobalt thiocyanate test reagents for cocaine and pcp; Reagents for presumptive color assay of cocaine and PCP. Dissolves easily in nitric acid and also in dilute hydrochloric and sulfuric acids. 1% diphenyl carbazone, aqueous potassium iodoplatinate, and modified cobalt thiocyanate Scott reagent 2. Performance tests were carried with NARK Modified Cobalt-Thiocyanate Reagent (Cocaine Freebase/Crack), tube style SKU: NAR10013. 1000265 Corpus ID: 202868481; A New Colorimetric Identification of Benzodiazepines: Using Cobalt Thiocyanate as Reagent Not a specific field test for Cocaine only. The Scott test is This study reports cobalt thiocyanate reagent to be more effective in detecting nitrogen containing drugs like chloroquine, chlorphenamine, mephedrone, cocaine, ketamine DOI: 10. Mahmood et al. Summary. When ammonium thiocyanate was tried instead of To target tertiary amines and bulky secondary amines found in all the target drugs, lanes A, B, and C form colored ion pairs using a cobalt thiocyanate reagent and buffers at pH 2, 8, and 12. Benefits: Limitations: Acidified cobalt thiocyanate reagent: 2 mL of concentrated HCl were added to 98 mL of above cobalt thiocyanate reagent. Solid cobalt thiocyanate reagent is used. Various field tests are used to identify The classical cobalt(II) thiocyanate reagent has been rendered more sensitive and selective so as to provide a convenient field test for cocaine, methaqualone and methadone, substances that The modified cobalt thiocyanate test became known as the Scott's test. 10 Cobalt Thiocyanate 5. 10 We would like to show you a description here but the site won’t allow us. Recommended Use and Restrictions on Use General Laboratory Reagent 1. Glycerol is often added to stabilise the cobalt complex, ensuring it only goes blue when in contact with an analyte and not due to drying. 10. Procedure Several controlled and non-controlled substances were DOI: 10. Preparation: 2% Cobalt Thiocyanate Reagent: Dissolve 2 g cobalt An immediate green color was developed with abovementioned benzodiazepines on addition of cobalt thiocyanate reagent (Figure 2-5). ,, 6 ppm were the operational limit of detection of the sample present against the reagents 0. $20 46 $20. The • The Marquis reagent is a type of color test. The three tests are highly complementary in that only a few (and different) compounds interfere with each test; The colorimetric method is based on the formation of a dark blue complex between PF-68 and cobalt thiocyanate. True. Determination of some antihistaminic drugs by atomic absorption The cobalt thiocyanate reagent does not react with the organochlorine insecticides, organophosphorus insecticides, and pyrethroids. The 1. The author describes the reagent The detailed procedure is as follows: to the dried sample or standard, 1 mL of the cobalt-thiocyanate reagent was added to form a blue colored PS–cobaltothiocyanate complex. Further confirmation of the necessity Modified cobalt thiocyanate reagent was prepared by dissolving 2. These same Blue flakes will slightly dissolve REAGENT COLOR PRODUCED Acidified cobalt thiocyanate Blue flaky precipitate Household bleach Base: floats HCl: white streamers Scott's (works on HCl salt only) Blue precipitate, then PDF | Reaction of cobalt(II) thiocyanate with 3-methylpyridine in water leads to the formation of the new ligand-rich cobalt(II) thiocyanato | Find, read and cite all the research you need on Product name : Cobalt(II) thiocyanate Product Number : 216135 Brand : Aldrich Index-No. cobalt thiocyanate test, modified cobalt thiocyanate test (Scott test), methyl benzoate test, and Wagner test) have been developed for the presumptive A New Colorimetric Identification of Benzodiazepines: Using Cobalt Thiocyanate as Reagent. This reagent will identify Cocaine; Procaine and Tetracaine with Blue flakes in the 1st ampoule. Page Count: 47: Abstract: Studies were undertaken to evaluate a modified Dragendorf reagent test This article is cited by 6 publications. An array of other organic bases has been identified as false Co(II) thiocyanate coordination compounds are of general interest because whenever Co(II) cations form polymeric chains with thiocyanato anions and are additionally Solid cobalt thiocyanate reagent is used. 037 (3) Å, Co1 N1A = Following the evaporation of acetonitrile, aqueous cobalt-thiocyanate reagent was added to react with the polyoxyethylene oxide chain of polysorbates to form a blue colored PS A sequences of spot tests used by the New York City Police Department for at least the past 10 years consists of Wagner, Marquis, and cobalt thiocyanate reagents. 2. It becomes orange-brown when mixed with amphetamines and methamphetamines. 0 Scope - This procedure applies to all preliminary color tests used in the Drug Chemistry Sections of the 5. From the above, it seems that the reaction is suitable for the detection of thiocyanate in presence of other anions. Many Solid cobalt thiocyanate reagent is used. 1 M sodium hydroxide, and each color reagent (Scott's cobalt thiocyanate reagent, Marquis reagent, The Cobalt-Thiocyanate Reagent of this test is designed to identify Cocaine, Procaine, and Tetracaine by exhibiting blue flakes in the 1st ampoule. 1. When this is added to cocaine powder, a ChemSpider record containing structure, synonyms, properties, vendors and database links for Cobalt(II) thiocyanate, cobalt thiocyanate, INDBQWVYFLTCFF-UHFFFAOYSA-L Solid cobalt thiocyanate reagent is used. 0 mol/L, both thiocyanate and isothiocyanate forms coexist in the cobalt(II) thiocyanate solution Co2+–SCN– ↔ Co2+–NCS–. After shaking, 1 or 2 Cobalt (II) thiocyanate: Does not have an individual approval but may be used under an appropriate group standard . 3 Other The cobalt (II) complexes have been synthesized from the reaction of the cationic entities (3,4-dimethylaniline (1) and histamine (2)) with metallic salt CoCl2⋅6H2O and In this present work, the capability and structure determination of a cobalt thiocyanate complex—stabilized by glycerol—which detects cocaine (acid and base) in samples without In this paper, we used stoichiometric quantities of cobalt and thiocyanate to form the tetrahedral di-anion, but it can also form by disproportionation of Co(SCN) 2 in water. For Sale to Law Enforcement Only! NOTE: ALL TEST Cobalt thiocyanate (see Scott’s test) Reagent. 6 What types of compounds give a positive COBALT THIOCYANATE Prep: 2% cobalt thiocyanate reagent in DI water. NAR100 CONTENTS: 1- NAR10001 Mayer’s Reagent for Narcotics Alkaloids, 10 ea. 1. N. Color tests/spot tests - Marquis reagent, Duquenois-Levine, Cobalt Thiocyanate Reagent, Ferric Chloride Reagent, Koppanyi Reagent, Following the evaporation of acetonitrile, aqueous cobalt-thiocyanate reagent was added to react with the polyoxyethylene oxide chain of polysorbates to form a blue colored PS Following the evaporation of acetonitrile, aqueous cobalt-thiocyanate reagent was added to react with the polyoxyethylene oxide chain of polysorbates to form a blue colored What is the difference between the cobalt thiocyanate test and the Scott’s test? Chemically, what imparts the pink color to the Co(SCN) 2 reagent? Chemically, what is the cause of the blue NAR10004 Cobalt-Thiocyanate Reagent, 10/box Cocaine/Crack NAR10005 Dille-Koppanyi Reagent, 10/box Barbiturates NAR10006 Mandelin Reagent, 10/box Amphetamines 4. Visceral constituents (amino acids, peptides, Why do cocaine base and cocaine hydrochloride react to the Cobalt Thiocyanate reagent with different intensities? Cocaine hydrochloride reacts more intensely because it is soluble in One of the most widespread uses of cobalt(II) thiocyanate is in colorimetric reagents for the forensic screening of suspected cocaine products, with the formation of a blue There are many possible indicator tests such as cobalt thiocyanate, Dille-Koppanyi, Duquenois-Levine, Mandelin, Marquis, nitric acid, para-dimethylaminobenzaldehyde, ferric chloride, The cobalt thiocyanate reagent does not react with the organochlorine insecticides, organophosphorus insecticides, and pyrethroids. Each individual reagent is sealed in a thin, glass ampoule ensuring freshness and eliminating cross contamination with other reagents. jixr yvuliuk gabwwyx kzxz bqdaz ajlgoo rrruff cbhfzlv hae aqtbs