T3D0723

724 T3D0723

Zinc bromide

Zinc bromide is a bromide of zinc. It is used in organic chemistry as a lewis acid, as a transparent shield against radiation, and in the zinc bromide battery. Zinc is a metallic element with the atomic number 30. It is found in nature most often as the mineral sphalerite. Though excess zinc in harmful, in smaller amounts it is an essential element for life, as it is a cofactor for over 300 enzymes and is found in just as many transcription factors. Bromine is a halogen element with the symbol Br and atomic number 35. Diatomic bromine does not occur naturally, but bromine salts can be found in crustal rock. (L625, L48, L49, L542) 7699-45-8

24375

Br2Zn

221.765820 White crystals.

394°C

697°C

Inhalation (L49) ; oral (L49) ; dermal (L49)

Anaemia results from the excessive absorption of zinc suppressing copper and iron absorption, most likely through competitive binding of intestinal mucosal cells. Unbalanced levels of copper and zinc binding to Cu,Zn-superoxide dismutase has been linked to amyotrophic lateral sclerosis (ALS). Stomach acid dissolves metallic zinc to give corrosive zinc chloride, which can cause damage to the stomach lining. Metal fume fever is thought to be an immune response to inhaled zinc. Bromine is a powerful oxidizing agent and is able to release oxygen free radicals from the water in mucous membranes. These free radicals are also potent oxidizers and produce tissue damage. In additon, the formation of hydrobromic and bromic acids will result in secondary irritation. The bromide ion is also known to affect the central nervous system, causing bromism. This is believed to be a result of bromide ions substituting for chloride ions in the in actions of neurotransmitters and transport systems, thus affecting numerous synaptic processes. (L626, L627, A543, L48, L49, A49)

Zinc can enter the body through the lungs, skin, and gastrointestinal tract. Intestinal absorption of zinc is controlled by zinc carrier protein CRIP. Zinc also binds to metallothioneins, which help prevent absorption of excess zinc. Zinc is widely distributed and found in all tissues and tissues fluids, concentrating in the liver, gastrointestinal tract, kidney, skin, lung, brain, heart, and pancreas. In the bloodstream zinc is found bound to carbonic anhydrase in erythrocytes, as well as bound to albumin, _2-macroglobulin, and amino acids in the the plasma. Albumin and amino acid bound zinc can diffuse across tissue membranes. Zinc is excreted in the urine and faeces. Bromine is mainly absorbed via inhalation, but may also enter the body through dermal contact. Bromine salts can be ingested. Due to its reactivity, bromine quickly forms bromide and may be deposited in the tissues, displacing other halogens. (L626, L49) No indication of carcinogenicity to humans (not listed by IARC).

Zinc bromide is used in organic chemistry as a lewis acid, as a transparent shield against radiation, and in the zinc bromide battery. (L542)

Intermediate Oral: 0.3 mg/kg/day (Zinc) (L134) Chronic Oral: 0.3 mg/kg/day (Zinc) (L134)

Chronic exposure to zinc causes anemia, atazia, lethargy, and decreases the level of good cholesterol in the body. It is also believed to cause pancreatic and reproductive damage. Bromine vapour causes irritation and direct damage to the mucous membranes. Elemental bromine also burns the skin. The bromide ion is a central nervous system depressant and chronic exposure produces neuronal effects. This is called bromism and can result in central reactions reaching from somnolence to coma, cachexia, exicosis, loss of reflexes or pathologic reflexes, clonic seizures, tremor, ataxia, loss of neural sensitivity, paresis, papillar edema of the eyes, abnormal speech, cerebral edema, delirium, aggressiveness, and psychoses. (L625, L626, L627, L49)

Ingestion of large doses of zinc causes stomach cramps, nausea, and vomiting. Acute inhalation of large amounts of zinc causes metal fume fever, which is characterized by chills, fever, headache, weakness, dryness of the nose and throat, chest pain, and coughing. Dermal contact with zinc results in skin irritation. Bromine vapour causes irritation and direct damage to the mucous membranes. Symptoms include lacrimation, rhinorrhoea, eye irritation with mucous secretions from the oropharyngeal and upper airways, coughing, dyspnoea, choking, wheezing, epistaxis, and headache. The bromide ion is a central nervous system depressant producing ataxia, slurred speech, tremor, nausea, vomiting, lethargy, dizziness, visual disturbances, unsteadiness, headaches, impaired memory and concentration, disorientation and hallucinations. This is called bromism. (L626, L627, L49) EYES: irrigate opened eyes for several minutes under running water. INGESTION: do not induce vomiting. Rinse mouth with water (never give anything by mouth to an unconscious person). Seek immediate medical advice. SKIN: should be treated immediately by rinsing the affected parts in cold running water for at least 15 minutes, followed by thorough washing with soap and water. If necessary, the person should shower and change contaminated clothing and shoes, and then must seek medical attention. INHALATION: supply fresh air. If required provide artificial respiration.

2009-03-27T00:31:45Z

2026-04-06T01:10:24Z

Metallothionein-2 (P02795) Metallothionein-1G (P13640) Metallothionein-1H (P80294) Metallothionein-3 (P25713) Metallothionein-1F (P04733) Metallothionein-1E (P04732) Metallothionein-1X (P80297) Metallothionein-1A (P04731) Metallothionein-1B (P07438) Metallothionein-1M (Q8N339) Metallothionein-4 (P47944) Metallothionein-1L (Q93083) Cysteine-rich protein 1 (P50238) Cysteine-rich protein 2 (P52943) Cysteine-rich protein 3 (Q6Q6R5) Serum albumin (P02768) (L49, A49, L92)

C093802

Zinc bromide

true

Br[Zn]Br

Br2Zn

InChI=1S/2BrH.Zn/h2*1H;/q;;+2/p-2

VNDYJBBGRKZCSX-UHFFFAOYSA-L

225.217

221.765821872

Exogenous Solid

22790

CHEM000650

DTXSID8052512

NS00093595

17.4704

9.181540564396936