NILE
CHEMICALS
NILE
CHEMICALS
Synonyms: Mercury (II) Thiocyanate; Mercuric
Sulfocyanate; Mercuric Sulfocyanide
CAS No.: 592-85-8
Molecular Weight: 316.79
Chemical Formula: Hg(SCN)2
Product Codes: P651
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Health Rating: 4 - Extreme (Poison)
Flammability Rating: 0 - None
Reactivity Rating: 1 - Slight
Contact Rating: 3 - Severe (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
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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.
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. Symptoms include redness and pain. May
cause burns. May cause sensitization. Can be absorbed through the skin with
symptoms to parallel ingestion.
Eye Contact:Causes irritation to eyes, may cause burns and 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. Not a known reproductive hazard, but related mercury compounds
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.
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.
Fire:Not considered to be a fire hazard. Expands
many times in volume when heated; decomposes at melting point.
Explosion:Sealed containers may rupture when heated.
Fire Extinguishing Media:Use any means suitable for extinguishing
surrounding 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. Toxic fumes of
mercury cyanide, sulfur oxides and nitrogen oxides may be released in a fire.
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.
Keep in a tightly closed light-resistant container, stored in a cool, dry, ventilated area. Protect against physical damage. Protect from direct sunlight. 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.
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
half facepiece particulate respirator (NIOSH type N95 or better filters) may be
worn for up to ten times the exposure limit or the maximum use concentration
specified by the appropriate regulatory agency or respirator supplier, whichever
is lowest.. A full-face piece particulate respirator (NIOSH type N100 filters)
may be worn 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.
Appearance: White-off white powder.
Odor: Odorless.
Solubility: Negligible.
Specific Gravity: 4.00
pH: No information found.
% Volatiles by volume @ 21C (70F): 0
Boiling Point: Not applicable.
Melting Point: 165C (329F)
Vapor Density (Air=1): 11.0
Vapor Pressure (mm Hg): No information found.
Evaporation Rate (BuAc=1): No information found.
Stability: Stable under ordinary conditions of use
and storage.
Hazardous Decomposition Products: Mercury, cyanides, and oxides of sulfur
and nitrogen may be emitted when heated to decomposition.
Hazardous Polymerization: Will not occur.
Incompatibilities: Aluminum in the presence of moisture. Strong acids.
Conditions to Avoid:Moisture, heat, light, dusting and incompatibles.
Toxicological Data:Oral rat LD50: 46 mg/kg.
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.
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:For mercury: This material is expected to be toxic
to aquatic life. The LC50/96-hour values for fish are less than 1 mg/l.
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.
Domestic (Land, D.O.T.)
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Proper Shipping Name: MERCURY THIOCYANATE
Hazard Class: 6.1
UN/NA: UN1646
Packing Group: II
Information reported for product/size: 125G
International (Water, I.M.O.)
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Proper Shipping Name: MERCURY THIOCYANATE
Hazard Class: 6.1
UN/NA: UN1646
Packing Group: II
Information reported for product/size: 125G
International (Air, I.C.A.O.)
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Proper Shipping Name: MERCURY THIOCYANATE
Hazard Class: 6.1
UN/NA: UN1646
Packing Group: II
Information reported for product/size: 125G
WARNING:
THIS PRODUCT CONTAINS A CHEMICAL(S) KNOWN TO THE STATE OF CALIFORNIA TO CAUSE
BIRTH DEFECTS OR OTHER REPRODUCTIVE HARM.
Australian Hazchem Code: 2Z
Poison Schedule: S7
WHMIS:
This MSDS has been prepared according to the hazard criteria of the Controlled
Products Regulations (CPR) and the MSDS contains all of the information required
by the CPR.
Disclaimer: Nile Chemicals. provides the
information contained herein in good faith but makes no representation as to its
comprehensiveness or accuracy. This document is intended only as a guide to the
appropriate precautionary handling of the material by a properly trained person
using this product. Individuals receiving the information must exercise their
independent judgment in determining its appropriateness for a particular
purpose. NILE CHEMICALS. MAKES NO REPRESENTATIONS OR WARRANTIES, EITHER EXPRESS
OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE WITH RESPECT TO THE INFORMATION SET FORTH
HEREIN OR THE PRODUCT TO WHICH THE INFORMATION REFERS. ACCORDINGLY, NILE
CHEMICALS. WILL NOT BE RESPONSIBLE FOR DAMAGES RESULTING FROM USE OF OR RELIANCE
UPON THIS INFORMATION.
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