IUPAC name: Hydrogen sulphide Common name: Hydrogen sulphide CAS number: 7783-06-4 Synonyms: Dihydrogen monosulphide ; dihydrogen sulphide, hydrogen sulphuric acid ; sewer gas ; stink damp ; sulphuretted hydrogen ; sulphur hydrogen EINECS 231-977-3 EC number 016-001-00-4 Molecular formula : H2S Molecular weight: 34.09 Freezing point at 101.3 kPa: -85.5 C Boiling point at 101.3 kPa: -60.7 C Vapo...

The effects of a third element, namely silver, copper, zinc, or antimony, on the microstructure and mechanical properties of eutectic tin-bismuth (Sn–Bi) solder were investigated. The investigation showed that, except for zinc, the addition of a trace amount of the third element improves the ductility of the Sn–Bi solder owing to the formation of a fine, homogeneous ternary eutectic microstruct...

of trypanosomiasis by intravenous injection of tartar emetic or other soluble salts of antimony, it has been found that though they quickly free the peripheral blood from trypanosomes, still the parasites remain in the internal organs. So far, therefore, the treatment of trypanosomiasis by means of intravenous injection of soluble salts of antimony has not been a permanent success. In kala-azar...

A pentavalent antimony compound (Sdt. 561, solustibosan, antimony-v-hexonate, containing 20 mg. of antimony per c.cm. of solution) , that made a stable solution and could be given intramuscularly, was first introduced b) Prof. H. Schmidt, the pioneer worker on pent*1' valent antimony compounds. Kikuth and Schmidt (1938) found that this compound possessed a marked curative action in the le*,' ma...

The present work is aimed at studying the adsorption capacity of powdered Fuller’s earth for the removal of ferri/ferrous impurities found in commercial grade sodium sulphide. The latter is not suitable for the manufacture of pharmaceutical grade chemicals and dye chemicals. The author has carried out experiments taking different dosage of powdered Fuller’s earth as an adsorbent in the aqueous ...

Cotton hanks were dyed with three different sulphur dyes using non-sulphide reducing agents such as glucose, fructose, invert sugar and molasses. The alkalies employed for reduction were sodium carbonate and sodium hydroxide. Invert sugar as a reducing agent and sodium carbonate as alkali proved to be better as this combination gave results comparable to those obtained with the conventional sod...

This work deals with the evaluation of diphenyl sulphide as a corrosion inhibitor for zinc in 0.5N HCl and 0.5N H2SO4 by conventional weight loss and gasometric methods. Results indicate that diphenyl sulphide exhibited high inhibition efficiencies in both the acids but performed better in 0.5N H2SO4 than in 0.5N HCl. The inhibition efficiency was found to increase with increase in the inhibito...

An investigation of the different steps in the method of Weil-Malherbe & Bone (1949), as modified by Taylor (1953), has led to an altered procedure for citric acid determination, with increased sensitivity and accuracy. The main modifications involved are the use of (i) a higher concentration of sulphuric acid during the formation of pentabromoacetone, and (ii) a thiourea-borax-sodium sulphide ...

Surma is a traditional eye cosmetic and eye-cure of the Indo-Pakistan subcontinent. It is made from antimony suiphide and may contain lead as an accidental impurity remaining in antimony suiphide or as an intentional adulterant. Ingestion of lead through constant use of surma can pose a serious health hazard. This study is an attempt to assess the lead content of surma in forty separate samples...