NILE
CHEMICALS
NILE
CHEMICALS
1. Product Identification
Synonyms: Mercury chloride; corrosive sublimate;
mercury (II) chloride; mercury perchloride
CAS No.: 7487-94-7
Molecular Weight: 271.52
Chemical Formula: HgCl2
2. Composition/Information on Ingredients
Ingredient CAS No Percent Hazardous
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------------ ------------
Mercuric Chloride 7487-94-7 98 - 100% Yes
3.
Hazards Identification
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Health Rating: 4 - Extreme (Poison)
Flammability Rating: 0 - None
Reactivity Rating: 2 - Moderate
Contact Rating: 4 - Extreme (Life)
Lab Protective Equip: GOGGLES & SHIELD; LAB COAT & APRON; VENT HOOD;
PROPER GLOVES
Storage Color Code: Blue (Health)
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Potential Health Effects
----------------------------------
Inhalation: Causes irritation to the respiratory tract. Symptoms include
sore throat, coughing, pain, tightness in chest, breathing difficulties,
shortness of breath and headache. Pneumonitis may develop. Can be absorbed
through inhalation with symptoms to parallel ingestion. Vapor inhalation can
burn the mucous membrane of the nose and throat.
Ingestion: Highly Toxic!
Average lethal dose for inorganic mercury salts is about 1 gram. May cause
burning of the mouth and pharynx, abdominal pain, vomiting, corrosive
ulceration, bloody diarrhea. May be followed by a rapid and weak pulse, shallow
breathing, paleness, exhaustion, central nervous system problems, tremors and
collapse. Delayed death may occur from renal failure.
Skin Contact:Causes irritaton and burns to skin. Symptoms include redness
and pain. May cause skin allergy and sensitization. Can be absorbed through the
skin with symptoms to parallel ingestion.
Eye Contact:Causes irritation and burns to eyes. Symptoms include
redness, pain, blurred vision; may cause serious and permanent eye damage.
Chronic Exposure:Chronic exposure through any route can produce central
nervous system damage. May cause muscle tremors, personality and behavior
changes, memory loss, metallic taste, loosening of the teeth, digestive
disorders, skin rashes, brain damage and kidney damage. Can cause skin allergies
and accumulate in the body. Repeated skin contact can cause the skin to turn
gray in color. Teratogen: can damage the developing fetus and decrease fertility
in males and females.
Aggravation of Pre-existing Conditions:Persons with nervous disorders, or
impaired kidney or respiratory function, or a history of allergies or a known
sensitization to mercury may be more susceptible to the effects of the
substance.
4. First Aid Measures
Inhalation:Remove to fresh air. If not breathing,
give artificial respiration. If breathing is difficult, give oxygen. Get medical
attention immediately.
Ingestion:Induce vomiting immediately as directed by medical personnel.
Never give anything by mouth to an unconscious person. Get medical attention
immediately.
Skin Contact:Immediately flush skin with plenty of water for at least 15
minutes while removing contaminated clothing and shoes. Get medical attention
immediately. Wash clothing before reuse. Thoroughly clean shoes before reuse.
Eye Contact:Immediately flush eyes with plenty of water for at least 15
minutes, lifting lower and upper eyelids occasionally. Get medical attention
immediately.
5. Fire Fighting Measures
Fire:Not considered to be a fire hazard.
Explosion:Explosive conditions are created by friction, heat, or impact
with phosphorus, antimony, arsenic, silver salts, sulfides, acetylene, ammonia
and oxalic acid.
Fire Extinguishing Media:Water, dry chemical, foam or carbon dioxide. Do
not use a solid stream of water, since the stream will scatter and spread the
fire. Do not allow water runoff to enter sewers or waterways.
Special Information:In the event of a fire, wear full protective clothing
and NIOSH-approved self-contained breathing apparatus with full facepiece
operated in the pressure demand or other positive pressure mode.
6. Accidental Release Measures
Ventilate area of leak or spill. Clean-up personnel require protective clothing and respiratory protection from dust. Spills: Pick up and place in a suitable container for reclamation or disposal in a method that does not generate dust. Sprinkle area with sulfur or calcium polysulfide to suppress mercury.
7. Handling and Storage
Keep in a tightly closed container, stored in a cool, dry, ventilated area. Protect from physical damage and direct sunlight. Isolate from incompatible substances. Follow strict hygiene practices. Containers of this material may be hazardous when empty since they retain product residues (dust, solids); observe all warnings and precautions listed for the product.
8. Exposure Controls/Personal Protection
Airborne Exposure Limits:
- OSHA Acceptable Ceiling Concentration:
mercury and mercury compounds: 0.1 mg/m3 (TWA), skin
- ACGIH Threshold Limit Value (TLV):
inorganic and metallic mercury, as Hg: 0.025 mg/m3 (TWA) skin, A4 Not
classifiable as a human carcinogen.
- ACGIH Biological Exposure Indices:
total inorganic mercury in urine (preshift): 35 ug/g creatinine;
total inorganic mercury in blood (end of shift): 15 ug/l.
Ventilation System:
A system of local and/or general exhaust is recommended to keep employee
exposures below the Airborne Exposure Limits. Local exhaust ventilation is
generally preferred because it can control the emissions of the contaminant at
its source, preventing dispersion of it into the general work area. Please refer
to the ACGIH document, Industrial Ventilation, A Manual of Recommended
Practices, most recent edition, for details.
Personal Respirators (NIOSH Approved):
If the exposure limit is exceeded and engineering controls are not feasible, a
full face piece particulate respirator (NIOSH type N100 filters) may be worn for
up to 50 times the exposure limit or the maximum use concentration specified by
the appropriate regulatory agency or respirator supplier, whichever is lowest.
If oil particles (e.g. lubricants, cutting fluids. glycerine, etc.) are present,
use a NIOSH type R or P filter. For emergencies or instances where the exposure
levels are not known, use a full-facepiece positive-pressure, air-supplied
respirator. WARNING: Air-purifying respirators do not protect workers in
oxygen-deficient atmospheres.
Skin Protection:Wear impervious protective clothing, including boots,
gloves, lab coat, apron or coveralls, as appropriate, to prevent skin contact.
Eye Protection:Use chemical safety goggles and/or full face shield where
dusting or splashing of solutions is possible. Maintain eye wash fountain and
quick-drench facilities in work area.
9. Physical and Chemical Properties
Appearance: White crystals or powder.
Odor: Odorless.
Solubility: 7.4g in 100g of water.
Specific Gravity: 5.4
pH: 3.2 (0.2 M solution)
% Volatiles by volume @ 21C (70F): 0
Boiling Point: 302C (576F) Sublimes.
Melting Point: 276C (529F) Sublimes.
Vapor Density (Air=1): 8.7
Vapor Pressure (mm Hg): 1 @ 136.2C (277F)
Evaporation Rate (BuAc=1): No information found.
10. Stability and Reactivity
Stability:Stable under ordinary conditions of use
and storage. Slowly decomposes to metallic Hg in the presence of organic matter
and sunlight, and becomes volatile at 300C (572F).
Hazardous Decomposition Products: Oxides of the contained metal and
halogen, possibly also free, or ionic halogen.
Hazardous Polymerization: Will not occur.
Incompatibilities: Reacts violently with potassium and sodium.
Incompatible with many compounds: formates, sulfites, phosphates, albumin,
ammonia, gelatin, carbonates, hypophosphites, sulfides, alkalis, alkaloid salts,
lime water, antimony and arsenic, bromides, borax, reduced iron, copper, iron,
lead, tannic acid and vegetable astringents.
Conditions to Avoid:Heat, shock, friction, incompatibles.
11. Toxicological Information
Toxicological Data:
Oral rat LD50: 1 mg/kg.
Irritation, Standard Draize, rabbit:
Skin, 500 mg/24H, severe; Eye, 50 ug/24H, severe.
Investigated as a tumorigen, mutagen, reproductive effector.
Reproductive Toxicity:
All forms of mercury can cross the placenta to the fetus, but most of what is
known has been learned from experimental animals. See Chronic Health Hazards.
Carcinogenicity:
EPA / IRIS classification: Group C - Possible human carcinogen.
--------\Cancer
Lists\-------------------------------------------------
---NTP Carcinogen---
Ingredient
Known
Anticipated IARC
Category
------------------------------------
----- -----------
--------
Mercuric
Chloride (7487-94-7)
No
No
3
12. Ecological Information
Environmental Fate:For mercury: This material has an
experimentally-determined bioconcentration factor (BCF) of greater than 100.
This material is expected to significantly bioaccumulate.
Environmental Toxicity:
24 Hr LC50 rainbow trout (juvenile): 0.903 mg/L;
48 Hr LC50 fathead minnow: 0.037 mg/L;
96 Hr LC50 bluegill sunfish (size 0.6 g): 0.16 mg/L (static)
Dangerous to the environment. Very toxic to aquatic organisms; may cause long
term adverse effects in the aquatic environment.
13. Disposal
Considerations
Whatever cannot be saved for recovery or recycling should be handled as hazardous waste and sent to a RCRA approved waste facility. Processing, use or contamination of this product may change the waste management options. State and local disposal regulations may differ from federal disposal regulations. Dispose of container and unused contents in accordance with federal, state and local requirements.
14. Transport Information
Domestic (Land, D.O.T.)
-----------------------
Proper Shipping Name: MERCURIC
CHLORIDE
Hazard Class: 6.1
UN/NA: UN1624
Packing Group: II
Information reported for product/size: 2.5KG
International (Water, I.M.O.)
-----------------------------
Proper Shipping Name: MERCURIC CHLORIDE
Hazard Class: 6.1
UN/NA: UN1624
Packing Group: II
Information reported for product/size: 2.5KG
International (Air, I.C.A.O.)
-----------------------------
Proper Shipping Name: MERCURIC CHLORIDE
Hazard Class: 6.1
UN/NA: UN1624
Packing Group: II
Information reported for product/size: 2.5KG
15. Regulatory Information
--------\Chemical
Inventory Status - Part 1\-------------------------
Ingredient
TSCA EC
-----------------------------------------------
---- ---
----- ----
Mercuric
Chloride (7487-94-7)
Yes Yes
Yes Yes
--------\Chemical
Inventory Status - Part 2\---------------------------
--
Ingredient
-----------------------------------------------
----- ---
---- ---
Mercuric
Chloride (7487-94-7)
Yes Yes
No Yes
--------\Federal,
State & International Regulations - Part 1\----------
-SARA 302- ------SARA
313------
Ingredient
RQ TPQ
List Chemical Catg.
-----------------------------------------
--- -----
---- --------
Mercuric
Chloride (7487-94-7)
500 500*
No Mercury comp
--------\Federal,
State & International Regulations - Part 2\----------
-RCRA- -TSCA-
Ingredient
CERCLA
261.33 8(d)
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------ ------
------
Mercuric
Chloride (7487-94-7)
1
No
No
Chemical
Weapons Convention: No
TSCA 12(b): No
CDTA: No
SARA
311/312: Acute: Yes
Chronic: Yes Fire: No
Pressure: No
Reactivity:
No
(Pure / Solid)
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