What is cadmium sulfide used for?

Cadmium sulfide (CdS) is an important direct intermediate bandgap (2.42eV at 300K) with excellent thermal and chemical stability and strong optical absorption and is used in solar cells, PDs, light emitting diodes, and lasers (Chuu & Dai, 1992; Jie et al., 2006; Leheny, Shaklee, Ippen, Nahory, & Shay, 1970; Li et al..

Is cadmium sulfide toxic?

Cadmium sulfide is toxic, especially dangerous when inhaled as dust, and cadmium compounds general are classified as carcinogenic. Problems of biocompatibility have been reported when CdS is used as colors in tattoos.

What is cadmium sulfide made from?

…of some economic value is cadmium sulfide, CdS. Generally produced by treating cadmium solution with a soluble sulfide, it is a bright yellow pigment known as cadmium yellow, which is used in high-grade paints and artist’s pigments because of its colour stability and resistance to sulfur and oxidation. One other…

What kind of compound is cadmium sulfide?

inorganic compound
Cadmium sulfide is an inorganic compound with the chemical formula CdS. It is a yellow solid and a semiconductor of electricity. It occurs in nature with two different polymorphs, cubic hawleyite, and hexagonal greenockite.

What foods are high in cadmium?

The food groups that contribute most of the dietary cadmium exposure are cereals and cereal products, vegetables, nuts and pulses, starchy roots or potatoes, and meat and meat products. Due to their high consumption of cereals, nuts, oilseeds and pulses, vegetarians have a higher dietary exposure.

Is cadmium sulfide soluble in water?

The metal cadmium is insoluble in water (Weast 1985). Cadmium sulfide, CdS, has low solubility; its reported solubility limit is 1.3 mg/L (9.0 mol/ m3) at 20°C (Weast 1985).

What is the most toxic form of cadmium?

Cadmium may interact with metabolism of calcium, vitamin D3 and collagen. Therefore osteomalacia or osteoporosis could be observed in delayed manifestations of severe cadmium poisoning (22). Itai-itai disease is the most severe form of chronic cadmium intoxication.

Which form of cadmium is toxic?

However, Cd exists in various chemical species. Two chemicals that are particularly toxic are cadmium chloride (CdCl2) and cadmium oxide (CdO). The aqueous solubility of CdCl2 is rather high (about 100 mg ml−1 at 20 °C).

What makes cadmium toxic?

Cadmium toxicity occurs when a person breathes in high levels of cadmium from the air, or eats food or drinks water containing high levels of cadmium. Cadmium is a naturally occurring metal. It is usually present in the environment as a mineral combined with other elements like oxygen, chlorine, or sulfur.

Where is cadmium found?

It is most often found in small quantities in zinc ores, such as sphalerite (ZnS). Cadmium mineral deposits are found in Colorado, Illinois, Missouri, Washington and Utah, as well as Bolivia, Guatemala, Hungary and Kazakhstan. However, almost all cadmium in use is a by-product of treating zinc, copper and lead ores.

How do I reduce cadmium in my body?

Suggestions to reduce the risk of exposure to cadmium include:

1. Stop smoking.
2. Try to avoid inhaling other people’s cigarette smoke.
3. Eat a healthy balanced diet with only moderate amounts of shellfish and organ meats.

Do eggs have cadmium?

After egg production stopped in the highest injected group (7.5 mg Cd/kg), Cd in the yolks of eggs had an accumulated range of 0.02-0.03 microgram/g wet weight. Furthermore, the Cd concentration in the follicle walls of the ovary increased and was 13- to 52-fold higher than in the follicle yolks.

What is cadmium sulfate used for?

Other uses of the Cadmium Sulfide are listed below: Light dependent resistors/photoresistors for light sensors Chemical bath deposition, CBD Sol gel techniques MOCVD Sputtering Electrochemical deposition Spraying with precursor cadmium salt, sulfur compound and dopant Screen printing using a slurry containing dispersed CdS

What can cadmium used for?

Cadmium is used in rechargeable nickel-cadmium batteries and can be found in many devices, including cell phones, cordless power tools, cameras, computers, and in emergency power supplies and lights, according to the Minerals Education Coalition.

What is the formula for cadmium sulfate?

Cadmium sulfide is the inorganic compound with the formula CdS. Cadmium sulfide is a yellow solid.

What is the OSHA standard for cadmium?

The cadmium standard is an enforceable standard of the U.S. Dept of Labor, Occupational Safety and Health Administration (OSHA). It is designed to protect workers in the private sector who come into contact with cadmium or its compounds on the job. The standard limits exposure to cadmium much more than required in the past.