| Identification | More | [Name]
MERCURY(II) SULFATE | [CAS]
7783-35-9 | [Synonyms]
DENIGES' REAGENT
MERCURIC SULFATE
MERCURIC SULFATE TS
MERCURIC SULPHATE
MERCURY(+2)SULFATE
Mercury(Ⅱ)sulfate(1：1)
MERCURY BISULFATE
MERCURY(II) SULFATE
MERCURY(II) SULFATE SOLUTION I
MERCURY(II) SULFATE SOLUTION III
MERCURY(II) SULPHATE
mercury(ii)sulfate(1:1)
mercurypersulfate
mercurysulfate(hgso4)
sulfatemercurique
sulfatemercurique(french)[qr]
Sulfuricacid,mercury(2+)salt(1:1)
sulfuricacid,mercury(2++)salt(1:1)
Mercury sulfate
MERCURY(II) SULFATE 98+% A.C.S. REAGE& | [EINECS(EC#)]
231-992-5 | [Molecular Formula]
HgO4S | [MDL Number]
MFCD00011047 | [Molecular Weight]
296.65 | [MOL File]
7783-35-9.mol |
| Chemical Properties | Back Directory | [Appearance]
Mercuric sulfate is a white, odorless, crystalline solid | [Melting point ]
°Cd ec.) | [Boiling point ]
615.95℃ | [density ]
6.47
| [vapor pressure ]
0Pa at 25℃ | [storage temp. ]
Store at RT. | [solubility ]
Soluble in hot sulfuric acid and sodium chloride solution. Insoluble in alcohol, acetone and ammonia. | [form ]
Powder | [color ]
White to pale yellow | [Specific Gravity]
6.47 | [Odor]
Odorless | [PH]
1 (50g/l, H2O, 20℃) | [Stability:]
Unstable. Incompatible with strong acids. Light and heat sensitive. | [Water Solubility ]
decomposed in H2O to yellow insoluble basic sulfate and H2SO4; soluble HCl, hot dilute H2SO4, conc NaCl solution [MER06] | [Sensitive ]
Hygroscopic | [Merck ]
14,5887 | [Exposure limits]
ACGIH: TWA 0.025 mg/m3 (Skin)
NIOSH: IDLH 10 mg/m3; TWA 0.05 mg/m3; Ceiling 0.1 mg/m3 | [LogP]
-0.07 at 25℃ | [CAS DataBase Reference]
7783-35-9(CAS DataBase Reference) | [EPA Substance Registry System]
Mercuric sulfate (7783-35-9) |
| Hazard Information | Back Directory | [Chemical Properties]
Mercuric sulfate is a white, odorless, crystalline solid | [Chemical Properties]
White crystals or powder. Mercuric sulphate decomposes on contact with water into yellow insoluble basic sulphate and sulphuric acid. The products of decomposition of mercuric sulphate include oxides of sulphur and oxides of mercury. Mercuric sulphate is incompatible with acetylene, ammonia, and strong acids and corrosive to iron, magnesium, aluminium, zinc, lead, and copper.
| [General Description]
Odorless white granules or crystalline powder. Denser than water. MERCURIC SULFATE(7783-35-9) is toxic by inhalation and by ingestion. MERCURIC SULFATE(7783-35-9) is used in medicine, for gold and silver extraction, and to make other mercury compounds. | [Reactivity Profile]
The absorption of gaseous hydrogen chloride on MERCURIC SULFATE becomes violent at 125° C [Mellor 2, Supp. 1:462. 1956]. | [Air & Water Reactions]
Decomposed by water to yellow mercuric subsulfate and sulfuric acid, which is corrosive. | [Hazard]
Highly toxic by ingestion, inhalation, and
skin absorption. | [Health Hazard]
INHALATION: Acute poisoning: Tightness in chest, breathing difficulty, coughing, and pain. EYES: Ulceration of conjunctiva and cornea. SKIN: Irritation; may cause sensitization dermatitis. INGESTION: Necrosis, pain, vomiting, severe purging. Patient may die within a few hours from peripheral vascular collapse. | [Potential Exposure]
Mercuric sulfate is used in making
other chemicals; as a battery electrolyte and in extracting
gold and silver from rock | [Fire Hazard]
Special Hazards of Combustion Products: None | [First aid]
If this chemical gets into the eyes, remove any
contact lenses at once and irrigate immediately for at least
15 minutes, occasionally lifting upper and lower lids. Seek
medical attention immediately. If this chemical contacts the
skin, remove contaminated clothing and wash immediately
with soap and water. Seek medical attention immediately.
If this chemical has been inhaled, remove from exposure,
begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR if
heart action has stopped. Transfer promptly to a medical
facility. When this chemical has been swallowed, ge medical attention. Give large quantities of water and induce
vomiting. Do not make an unconscious person vomit.
Medical observation is recommended for 24 to 48 hours
after breathing overexposure, as pulmonary edema may be
delayed. As first aid for pulmonary edema, a doctor or
authorized paramedic may consider administering a drug or
other inhalation therapy
Antidotes and Special Procedures for medical personnel:
The drug NAP has been used to treat mercury poisoning
with limited success | [Shipping]
UN1645 Mercury sulfates, Hazard Class: 6.1;
Labels: 6.1-Poisonous materials | [Incompatibilities]
Contact with water produces sulfuric
acide and insoluble basic mercuric subsulfate. Reacts with
acids producing mercury vapors. Violent reaction with gaseous hydrogen chloride above 121C. Decomposes in heat
or on exposure to light, producing toxic fumes of mercury
and sulfur oxides. Attacks magnesium, aluminum, zinc,
iron, lead, copper. | [Description]
Mercuric sulfate is a white, odorless, crystalline solid. Molecular weight= 296.65; Freezing/Melting point=(decomposes). Hazard Identification (based on NFPA-704 M Rating System): Health 3, Flammability 0, Reactivity 0. Decomposes in water. | [storage]
Color Code—Blue: Health Hazard/Poison: Store in a secure poison location. Prior to working with this chemical you should be trained on its proper handling and storage. Store in tightly closed containers in a cool, wellventilated area away from light, water, and gaseous hydrogen chloride. |
| Safety Data | Back Directory | [Hazard Codes ]
T+,N,T | [Risk Statements ]
R26/27/28:Very Toxic by inhalation, in contact with skin and if swallowed .
R33:Danger of cumulative effects.
R50/53:Very Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
R51/53:Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
R42/43:May cause sensitization by inhalation and skin contact .
R36/38:Irritating to eyes and skin .
R61:May cause harm to the unborn child.
R60:May impair fertility.
R45:May cause cancer.
R52/53:Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
R35:Causes severe burns.
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed . | [Safety Statements ]
S13:Keep away from food, drink and animal feeding stuffs .
S28:After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer) .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S60:This material and/or its container must be disposed of as hazardous waste .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
S36/37:Wear suitable protective clothing and gloves .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S23:Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer) .
S53:Avoid exposure-obtain special instruction before use .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S30:Never add water to this product . | [RIDADR ]
UN 1645 6.1/PG 2
| [WGK Germany ]
3
| [RTECS ]
OX0500000
| [Autoignition Temperature]
>450 °C | [TSCA ]
Yes | [HazardClass ]
6.1 | [PackingGroup ]
II | [HS Code ]
28521000 | [Safety Profile]
Poison by ingestion and
intraperitoneal routes. Moderately toxic by
skin contact. When heated to decomposition
it emits very toxic fumes of Hg and SOx. See
also MERCURY COMPOUNDS. | [Hazardous Substances Data]
7783-35-9(Hazardous Substances Data) |
| Questions And Answer | Back Directory | [Uses]
Mercury(II) sulfate is an electrolyte for primary batteries. Other applications are in extraction of gold and silver from roasted pyrites; as a catalyst in organic reactions such as conversion of acetylene to acetaldehyde; and as a reagent for wine coloring.
| [Preparation]
Mercury(II) sulfate is prepared by heating mercury with an excess of concentrated sulfuric acid; or by dissolving mercury(II) oxide in concentrated sulfuric acid. The solution is evaporated repeatedly to yield anhydrous salt as white leaftlets. However, in the presence of a small amount of water, the monohydrate of the salt, HgSO4•H2O crystallizes as a colorless rhombic prism. Hydrolysis occurs in the presence of a large amount of water, forming a yellow basic sulfate, HgSO4•2HgO.
The compound also is prepared by treating alkali sulfate, such as sodium or potassium sulfate with a solution of mercury(II) nitrate.
| [Reactions]
Mercury(II) sulfate on heating first turns yellow and then becomes redbrown. When heated to red heat, it decomposes to mercury, sulfur dioxide, and oxygen.
HgSO4 → Hg + SO4 + O2
Mercury(II) sulfate hydrolyzes in water forming a basic sulfate HgSO4•2HgO. It forms double sulfates with alkali metal sulfates, such as K2SO4•3HgSO4•2H2O.
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