水銀(II)オキシド

Wear full body protective clothing and self-contained breathing apparatus.

In case of fire in the surroundings, use appropriate extinguishing media.

Fresh air, rest. Refer for medical attention.

Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention .

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

Rinse mouth. Give one or two glasses of water to drink. Refer for medical attention .

Signs and Symptoms of Acute Mercuric Oxide Exposure: Signs and symptoms of acute exposure to mercuric oxide may be severe and include increased salivation, foul breath, inflammation and ulceration of the mucous membranes, abdominal pain, and bloody diarrhea. Oliguria (scanty urination), anuria (suppression of urine formation), and acute renal failure may be noted. Weak pulse, seizures, psychic disturbances, circulatory collapse, chest pain, and dyspnea (shortness of breath) may be observed. Dermal exposure may result in dermatitis (red, inflamed skin).

Separated from food and feedstuffs, reducing agents, chlorine and reactive substances. See Chemical Dangers. Keep in the dark. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing. Well closed.

Cleanup: Mercury removal from wastewater can be accomplished by these processes: BMS process; chlorine is added to the wastewater, oxidizing any mercury present to the ionic state. The BMS adsorbent (an activated carbon concentrated of sulfur compound on its surface) is used to collect ionic mercury. The spent adsorbent is then distilled to recover the mercury, leaving a carbon residue for reuse or disposal. TMRIMAC Process: wastewater is fed into a reaction whereby a slight excess of chlorine is maintained, oxidizing any mercury present to ionic mercury. The liquid is then passed through the TMRIMAC ion exchange resin where mercury ions are adsorbed. The mercury is then stripped from the spent resin with hydrochloric acid solution. /Mercury compounds/

Mercury spills should be cleaned up immediately by use of a special vacuum cleaner. Then the area should be washed with a dilute calcium sulfide solution. Small quantities of mercury can be picked up by mixing with copper metal granules. ... /Mercury/

Mercury removal from waste water can be accomplished by these processes: BMS process; Chlorine is added to the waste water, oxidizing any mercury present to the ionic state. The BMS adsorbent (an activated carbon concentrate of sulfur cmpd on its surface) is used to collect ionic mercury. The spent adsorbent is then distilled to recover the mercury, leaving a carbon residue for reuse or disposal. TMR IMAC Process; Waste water is fed into a reactor, whereby a slight excess of chlorine is maintained, oxidizing any mercury present to ionic mercury. The liquid is then passed through the TMR IMAC ion-exchange resin where mercury ions are adsorbed. The mercury is then stripped from the spent resin with hydrochloric acid solution. /Mercury cmpds/

SPILLED MERCURY CMPD OR SOLN CAN BE CLEANED UP BY ANY METHOD THAT DOES NOT CAUSE EXCESSIVE AIRBORNE CONTAMINATION OR SKIN CONTACT. /MERCURY COMPOUNDS/

1) Ventilate area of spill. 2) Collect spilled material for reclamation using commercially available mercury vapor depressants or specialized vacuum cleaners. /Inorganic mercury/

SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.

SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.

Disposal: Metal collect all droplets and pools at once by means of suction pump and aspirator bottle with a long capillary tube. Cover fine droplets in nonaccessible cracks with calcium polysulfide and excess sulfur. Combine all contaminated mercury in a tightly stoppered bottle. Hold it for purification or sale. Compounds dissolve all water soluble contaminated compounds. Convert other contaminated compounds to the soluble nitrates. Adjust the acidity and precipitate as mercuric sulfide. Wash and dry the precipitate. Ship to the supplier.

Consult an expert! Personal protection: chemical protection suit. Do NOT let this chemical enter the environment. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations. Do NOT absorb in saw-dust or other combustible absorbents.

If material not involved in fire: Keep material out of water sources and sewers.

Personnel protection: Avoid breathing dusts, and fumes from burning material. Keep upwind. Avoid bodily contact with the material. ... Do not handle broken packages unless wearing appropriate personal protective equipment. Wash away any material which may have contacted the body with copious amounts of water or soap and water. ... If contact with the material anticipated, wear appropriate chemical protective clothing.

Preventative measure: adequate ventilation; careful attention to good housekeeping, e.g., avoidance of spills, and prompt and proper cleaning if a spill occurs; all containers of mercury and its compounds should be kept tightly closed; should be washed on a regular basis with dilute calcium sulfide solution or other suitable reactant; floors should be nonporous; all workers directly involved in the plant operation should shower thoroughly each day before leaving. /Mercury compounds/

Mercury mainly affects the nervous system. Exposure to high levels of metallic, inorganic, or organic mercury can permanently damage the brain, kidneys, and developing fetus. Effects on brain functioning may result in irritability, shyness, tremors, changes in vision or hearing, and memory problems. Acrodynia, a type of mercury poisoning in children, is characterized by pain and pink discoloration of the hands and feet. Mercury poisoning can also cause Hunter-Russell syndrome and Minamata disease. (L7)

The substance can be absorbed into the body by inhalation of its aerosol, through the skin and by ingestion.

Oral (L136) ; inhalation (L136); dermal (L136)

High-affinity binding of the divalent mercuric ion to thiol or sulfhydryl groups of proteins is believed to be the major mechanism for the activity of mercury. Through alterations in intracellular thiol status, mercury can promote oxidative stress, lipid peroxidation, mitochondrial dysfunction, and changes in heme metabolism. Mercury is known to bind to microsomal and mitochondrial enzymes, resulting in cell injury and death. For example, mercury is known to inhibit aquaporins, halting water flow across the cell membrane. It also inhibits the protein LCK, which causes decreased T-cell signalling and immune system depression. Mercury is also believed to inhibit neuronal excitability by acting on the postsynaptic neuronal membrane. It also affects the nervous system by inhibiting protein kinase C and alkaline phosphatase, which impairs brain microvascular formation and function, as well as alters the blood-brain barrier. Mercury also produces an autoimmune response, likely by modification of major histocompatibility complex (MHC) class II molecules, self peptides, T-cell receptors, or cell-surface adhesion molecules. (L7, A8, A25, A26)

Cough. Sore throat.

Redness.

Redness.

Abdominal pain. Nausea. Vomiting. Diarrhoea.

Common symptoms include peripheral neuropathy (presenting as paresthesia or itching, burning or pain), skin discoloration (pink cheeks, fingertips and toes), edema (swelling), and desquamation (dead skin peels off in layers). (A5)

FREQUENT APPLICATIONS TO THE LIDS FOR MANY YEARS HAS INDUCED A BLUISH-GRAY DARKENING OF THE LIDS AND CONJUNCTIVAE. SLIGHT DISCOLORATION HAS ALSO BEEN SEEN IN THE CORNEA IN THE PERIPHERAL PORTIONS OF DESCEMET'S MEMBRANE, & A BROWNISH, LUSTERLESS OPACITY SUPERFICIALLY IN THE PUPILLARY AREA OF THE LENS, BUT WITH NO INTERFERENCE WITH TRANSPARENCY OF THE MEDIA OR DISTURBANCE OF VISUAL ACUITY. IN THE BULBAR CONJUNCTIVA DARK PIGMENT GRANULES MAY BE DISTRIBUTED ABOUT THE BLOOD VESSELS NEAR THE CORNEA. THE DISCOLORATION OF CORNEA AND LENS IS SIMILAR TO THAT WHICH OCCURS IN CHRONIC SYSTEMIC ABSORPTION OF MERCURY. IT APPEARS TO BE HARMLESS AND CAUSES NO SYMPTOMS.

... MERCURY BATTERY WORKERS EXPOSED DAILY TO MERCURIC OXIDE DUST SHOWED 56% WITH URINARY HG VALUES ABOVE THE NORMAL LEVEL OF 250 UG/L WITHOUT CLINICAL SIGNS OF POISONING, AS EVIDENCED BY NORMAL BETA-GLOBULIN LEVELS.

TWO EMPLOYEES IN A MERCURIC OXIDE MFR PLANT DEVELOPED NEUROLOGIC CHANGES NOT PREVIOUSLY REPORTED FROM EXPOSURE TO INORGANIC HG OR ELEMENTAL HG VAPOR. THE SYMPTOMS, PHYSICAL FINDINGS & LAB STUDIES RESEMBLED THOSE FOUND IN AMYOTROPHIC LATERAL SCLEROSIS & ORG HG INTOXICATION.

It is reported that employees at a mercuric oxide production facility associated with battery manufacture have exhibited a variety of symptoms: nervous system disorders, low sperm counts, and loss of weight. The employees may have been exposed to manganese, which may have augmented the reported clinical picture.

DOGS & CATS ARE ... SUSCEPTIBLE TO TOXIC EFFECTS OF MERCURY FROM MERCURIAL OINTMENTS, BOTH DUE TO DIRECT ABSORPTION & TO LICKING OF PARTS TO WHICH THE OINTMENT HAS BEEN APPLIED. POISONING IN CATTLE HAS ALSO BEEN RECORDED AFTER THE USE OF OINTMENTS CONTAINING ... MERCURIC ... YELLOW OXIDE.

... INJECTED EXPTL INTO ANTERIOR CHAMBER /OF EYE/ OF RABBITS HAS BEEN OBSERVED REGULARLY TO CAUSE INFLAMMATION & A PURULENT EXUDATE.

MERCURIC OXIDE (2.16 MG/DAY, ORALLY) TO PREGNANT RATS ON DAY 5 OF PREGNANCY CAUSED CONGENITAL MALFORMATIONS, RUNTING, & LACK OF EYE PIGMENTATION & PUPILS IN 29.7% OF OFFSPRING, BUT 0% MALFORMATIONS IN CONTROLS AFTER DELIVERY ON DAYS 20-21.

A toxicological study of poorly soluble mercury compounds, including mercuric iodide, mercuric ammonium chloride and mercuric oxide indicated that mercuric iodide was the most toxic compound. Acute toxicity study following administration via stomach and single inhalation exposure to rats showed they have approx similar toxicity.

D009; A solid waste containing mercury may or may not become characterized as a hazardous waste when subjected to the Toxicity Characteristic Leaching Procedure listed in 40 CFR 261.24, and if so characterized, must be managed as a hazardous waste. /Mercury/

Listed as a hazardous air pollutant (HAP) generally known or suspected to cause serious health problems. The Clean Air Act, as amended in 1990, directs EPA to set standards requiring major sources to sharply reduce routine emissions of toxic pollutants. EPA is required to establish and phase in specific performance based standards for all air emission sources that emit one or more of the listed pollutants. Mercuric oxide is included on this list.

Releases of CERCLA hazardous substances are subject to the release reporting requirement of CERCLA section 103, codified at 40 CFR part 302, in addition to the requirements of 40 CFR part 355. Mercuric oxide is an extremely hazardous substance (EHS) subject to reporting requirements when stored in amounts in excess of its threshold planning quantity (TPQ) of 500/10,000 lbs.

Yellow mercuric oxide: Used to make organic mercurials, as a catalyst, and in chemical analysis; Red mercuric oxide: Used in marine and porcelain paints, dry batteries, as a chemical reagent, and catalyst; Both are used as topical antiseptics; [Merck Index] Used as a pigment, glass modifier, chemical intermediate, and cosmetics preservative; Yellow mercuric oxide is also used as a fungicide paste for treating fruit and rubber trees; [HSDB]

Battery Manufacturing [Category: Industry]

For Mercuric Oxide (USEPA/OPP PC Code: 052102) there are 0 labels match. /SRP: Not registered for current use in the U.S./

Yellow mercuric oxide: for determining zinc or hydrogen cyanide; detecting acetic acid in formic acid, CO in gas mixtures

Red mercuric oxide: in marine bottom paints, diluting pigments for painting on porcelain; with graphite as depolarizer in dry batteries; in Kjeldahl nitrogen detn; as reagent for citric acid, thiophene, glucose, aldehyde, urea, acetone; as reagent and catalyst in organic reactions

Fungicide ... as paste for wound sealing and canker treatment of fruit trees and rubber trees. Not to be used for sealing graft wounds or for treating pruning cuts in first year /Yellow oxide of mercury/

TO A CONCN AQ SOLN OF HG BICHLORIDE ... A 5% SOLN OF NAOH IS ... ADDED ... PRECIPITATED OXIDE IS WASHED ... BY DECANTATION WITH PURIFIED WATER ... COLLECTED ON A FILTER & WASHED WITH PURIFIED WATER ... IT IS THEN DRIED IN DARK @ ABOUT 50 °C.

By heating mercurous nitrate

BY HEATING MERCURY IN OXYGEN ...

REACTION OF A MERCURIC SALT SOLN-EG, MERCURIC CHLORIDE-WITH ALKALI PRODUCING A PPTD PRODUCT (YELLOW); HEAT-INDUCED DECOMPOSITION OF MERCUROUS NITRATE (RED); REACTION OF SODIUM CARBONATE WITH MERCURIC CHLORIDE OR MERCURIC NITRATE & SODIUM CHLORIDE FOLLOWED BY REFLUXING (RED)

/SANTAR/ THIXOTROPIC PASTE CONTAINING 3% MERCURY AS MERCURIC OXIDE /FORMER USE/

Grades of purity: red: technical, reagent, purified; yellow: technical, NF, reagent

Grade: Technical, paint, ACS reagent (Red); Grade: CP, tehcnical, NF (yellow)

Contains 99-99.5% HgO