992-98-3 Hazards Identification
Pictogram(s):
Signal:
Danger
GHS Hazard Statements:
H314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]
Precautionary Statement Codes:
P260, P264, P280, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P363, P405, and P501
Hazard Classes and Categories:
Skin Corr. 1A
Flam. Liq. 3 (21.58%)
Acute Tox. 4 (19.66%)
Skin Corr. 1B (99.71%)
Eye Dam. 1 (17.4%)
Acute Tox. 3 (17.61%)
Specific target organ toxicity (single exposure) - category 3
Skin corrosion - category 1
Acute toxicity (ingestion) - category 4
Acute toxicity (inhalation) - category 3
Flammable liquids - Category 3
Acute toxicity (Oral) - Category 4
Acute toxicity (Inhalation: Vapours) - Category 4
Skin corrosion/irritation - Category 1
Serious eye damage/eye irritation - Category 1
Specific target organ toxicity - Single exposure - Category 1 (central nervous system, respiratory system, blood system, kidney)
Specific target organ toxicity - Repeated exposure - Category 2 (respiratory system)
Hazardous to the aquatic environment (Acute) - Category 3
Specific target organ toxicity - Single exposure - Category 1 (respiratory system, blood, kidney)
Specific target organ toxicity - Repeated exposure - Category 2 (upper respiratory tract)
Skin corrosion/irritation - Category 1A-1C
Reproductive toxicity - Category 2
Specific target organ toxicity - Single exposure - Category 1 (blood, liver, kidney, respiratory system)
Specific target organ toxicity - Repeated exposure - Category 1 (kidney)
Corrosives, Flammable - 2nd degree
Hazards Summary:
Liquid causes second degree burns after contact for a few minutes; [CHRIS] Highly corrosive to skin; [Quick CPC] Pulmonary edema can result from heavy inhalation exposure; [ICSC]
992-98-3 Usage
Uses
Catalyst for cyclization reactionsUsed in Cherenkov radiation material
Check Digit Verification of cas no
The CAS Registry Mumber 992-98-3 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 9,9 and 2 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 992-98:
(5*9)+(4*9)+(3*2)+(2*9)+(1*8)=113
113 % 10 = 3
So 992-98-3 is a valid CAS Registry Number.
InChI:InChI=1/CH2O2.Tl/c2-1-3;/h1H,(H,2,3);
992-98-3Relevant academic research and scientific papers
205Tl, 14N, and 1H NMR Studies of Salt Solutions in Liquid Methylamine
Metz, K. R.,Hinton, J. F.,Goforth, T. L.
, p. 2097 - 2102 (2007/10/02)
205Tl, 14N, and 1H NMR techniques were used to investigate thallium(I) salt solutions in liquid methylamine from 1 mM to 7.2 M.Essentially complete association was observed between Tl+ and NO-3 or HCO-2 at 1 mM.Thermodynamic parameters for the ion association of Tl+ and ClO-4 were found to be ΔHA = +10.3 +/- 4 kcal mol-1 and ΔSA = +50 +/- 15 eu.Due to its lower dielectric constant, more extensive ion association occurs in liquid methylamine than in liquid ammonia.Ion pairs in liquid methylamine appear to be of solvent-shared or solvent-separeted type, as opposed to contact ion pairs previously found to exist in liquid ammonia.Relative anion and solvent donicities, as determined from 205Tl chemical shifts, were strongly temperature dependent.At high concentrations, no evidence for a structural rearangement of the solvated TlNO3 species was found.However, the anomalous behavior of the 205Tl chemical shift observed at TlNO3 concentrations below 0.5 M may results from such rearrangements.Two methylamine molecules were determined to be the minimum number necessary to saturate the associated ionic species at very high concentrations.
