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7783-30-4

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7783-30-4 Usage

Chemical Properties

Bright-yellow powder, becoming greenish on exposure to light due to decomposition into metallic mercury and mercuric iodide. Becomes dark yellow, orange, and orange-red on heating. Undergoes same color change in opposite order on cooling. Odorless and tas

Uses

Medicine (topical antibacterial).

Safety Profile

Poison by ingestion and intraperitoneal routes. When heated to decomposition it emits very toxic fumes of Hg and I-. See also MERCURY and IODIDES.

Check Digit Verification of cas no

The CAS Registry Mumber 7783-30-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,7,8 and 3 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 7783-30:
(6*7)+(5*7)+(4*8)+(3*3)+(2*3)+(1*0)=124
124 % 10 = 4
So 7783-30-4 is a valid CAS Registry Number.
InChI:InChI=1/Hg.HI/h;1H/q+1;/p-1

7783-30-4SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name iodomercury

1.2 Other means of identification

Product number -
Other names Iodure de mercure

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:7783-30-4 SDS

7783-30-4Downstream Products

7783-30-4Relevant articles and documents

Vibrational population dynamics of the HgI photofragment in ethanol solution

Pugliano, Nick,Szarka, Arpad Z.,Gnanakaran, S.,Triechel, Matt,Hochstrasser, Robin M.

, p. 6498 - 6511 (1995)

The vibrational population dynamics of HgI fragments in ethanol solution, resulting from the 320 nm photolysis of HgI2, are examined both experimentally and by a simulation.The experiments reveal an HgI population distribution which rapidly relaxes toward equilibrium.At the earliest times, the HgI exhibits vibrational coherent wave-packet motion that dephases with a time constant of ca. 1 ps.These data are used to gain insight into the character of the solvated potential energy curves.The population relaxation was adequately reproduced by master equations which were formulated to incorporate the HgI anharmonicity and a solvent frequency dependent friction.This treatment characterizes the spontaneous vibrational relaxation timescale for the n =1->0 transition to be ca. 3 ps, and is used to identify the relaxation rate constants for all other HgI level pairs.The simulations estimate that the initial excess energy of HgI is centered at n ca. 10 which corresponds to a total excess energy of ca. 1050 cm-1.

Vibrational distributions of HgBr(B2Σ) and HgI(B 2Σ) molecules formed by photodissociation of HgBr2 and HgI2

McGarvey, John A.,Cheung, Nai-Ho,Erlandson, Alvin C.,Cool, Terrill A.

, p. 5133 - 5142 (1981)

Reliable fluorescence spectra (+/- 3percent) of HgBr and HgI photofragments formed in the direct photodissociation of HgBr2 and HgI2 at 193 nm have been measured.The nascent vibrational distributions of HgBr(B2Σ) and HgI(B2Σ) have been determined.The distributions are revomable into the relative contributions from two process: (1) hν + HgX2 -> HgX(B2Σ) + X(2P3/2) and (2) hν + HgX2 -> HgX(B2Σ) + X(2P1/2).HgX(B2Σ) molecules formed with X(2P3/2) atoms exhibit vibrational population inversion and preferential energy disposal among the higher vibrational states.In contrast, the vibrational excitation of HgX(B2Σ) molecules formed with X(2P1/2) atoms produces a Boltzmann-like distribution which strongly favors the lowest vibrational states.

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