What is NaHS used for?

What is NaHS used for?

Sodium hydrosulfide, known by its chemical symbol NaHS (often pronounced “nash”) is used in the leather tanning, pulp and paper, chemical, dye, and mineral extraction industries. NaHS is used as a pure solid (flake) or more commonly as a solution in water.

Is NaHS an acid or base?

NaHS is a strong base with a pH between 11.5 and 12.5.

How do you make NaSH?

Preparation. One laboratory synthesis entails treatment of sodium ethoxide (NaOEt) with hydrogen sulfide: NaOC2H5 + H2S → NaHS + C2H5OH. An alternative method involves reaction of sodium with hydrogen sulfide.

How do you neutralize sodium hydrosulfide?

When dealing with a hydrogen sulfide gas leak, the National Oceanic and Atmospheric Administration recommends using water to spray down the gas, then adding sodium bicarbonate to neutralize it.

What cause resulted in the most NaHS incidents according to the CSB?

From reported data for the United States from 1971 through 2004, CSB identified 45 NaHS-related incidents in six industry sectors (Figure 4). 5 Collectively, these incidents resulted in: Thirty-six of the incidents resulted from H2S releases, and the remain- der from skin or eye exposure to NaHS solutions.

Why is NaHSO4 called an acidic salt?

Na2SO4 is formed by the reaction of strong base NaOH with strong acid H2SO4. It is formed by the complete replacement of ionizable H+ ions of H2SO4. As NaHSO4 has one replaceable H+ ion. It can react with base so it is acidic salt.

What is NaH called?

Sodium hydride
Sodium hydride

PubChem CID 24758
Molecular Formula HNa or NaH
Synonyms 15780-28-6 23J3BHR95O 60% Sodium hydride 7646-69-7 hydridosodium More…
Molecular Weight 23.9977
Component Compounds CID 783 (Hydrogen) CID 5360545 (Sodium)

Is NASH a chronic disease?

NASH is the progressive form of a chronic liver disease called non-alcoholic fatty liver disease (NAFLD), which is characterised by the build-up of fat in the liver (steatosis).

How do you induce a fatty liver in a rat?

Combined diets Various “fast food” diets containing higher amounts of fat and fructose are used to induce NAFLD in rats. Moreover, these diets can be supplemented with cholesterol or trans-fatty acids.

How fast can hydrogen sulfide kill you?

Death can occur within 1 to 4 hours of exposure. Above 500 Immediate loss of consciousness. Death is rapid, sometimes immediate. H2S levels of 100 ppm and higher are considered immediately dangerous to life and health (IDLH).

At what temperature does hydrogen sulfide become explosive?

Hydrogen sulfide

Flash point −82.4 °C (−116.3 °F; 190.8 K)
Autoignition temperature 232 °C (450 °F; 505 K)
Explosive limits 4.3–46%
Lethal dose or concentration (LD, LC):