Fire & Explosion Data
Health Hazard Data
Spill or Leak Procedures
Special Protection Information
Special Precautions and Maintenance Notes
SECTION 1. GENERAL INFORMATION.
Manufactured by: MONTANA SULPHUR & CHEMICAL COMPANY
P.O. Box 31118, Billings,
Montana USA 59107-1118
Offices and Plant located at 627 Exxon Mobil Road, Billings, Montana 59101
Emergency Telephone Number: (406) 252-7101
Telephone (406) 252-9324
YELLOWSTONE BRAND Sugarhouse Flaked Sulfur; Flaked Sulfur;
Disintegrating Sulfur Granules for Agriculture; Lump Sulfur.
Brimstone, Crude Sulfur, Elemental Sulfur, Sulphur, Lump Sulfur,
DOT Shipping Name:
SULFUR, 9, NA1350, PG III. [See 49 CFR § 172.101 Hazardous Materials
Table, and 49 CFR § 172.202 Description of Hazardous Material on
DOT Hazard Class:
SULFUR (with the exception of Bulk Packaged
Ground Sulfur) is NOT considered Hazardous Material per [49
CFR § 172.102(c)(1) Code/Special Provision 30].
NONE REQUIRED (with
the exception of Bulk Packaged Ground Sulfur) per [49 CFR §
172.102(c)(1) Code/Special Provision 30]. CLASS 9 for Bulk Packaged
EPA TOSCA & CAS#:
DOC Schedule B No:
2503.10.0000 Ck Dgt
SECTION 2. INGREDIENTS (exceeding 1%
Elemental Sulfur, S-; Chemical Family: Sulfur.
Flaked, Sugarhouse & High Purity Prills 99.9% minimum S TLV-none
Lump or Crude varies ca.99% S TLV-none established*
Disintegrating types 90.0%** minimum S TLV-none established*
(for agriculture only) & 10.0%** maximum bentonite clay*
[**Disintegrating Type sulfur content may be different depending on
formulation; consult actual package label, invoice, or manufacturer.
Disintegrating type sulfurs are intended only for agricultural use
as plant nutrient and soil amendment materials. The clays are used
as an aid to product disintegration in the soil. YELLOWSTONE BRAND
90% Disintegrating Sulfur for example is typically 90% (minimum
Sulfur) and up to 10% clay/earth (bentonite)].
*No standards exist for elemental sulfur or bentonite exposure. [Bentonite
clays may contain some free silica; the OSHA PEL for silica is 30
mg/m3/(%SiO2 + 2 total dust)]. OSHA TWA is 0.1mg/mg *(respirable).
The Nuisance Dust Recommendation should govern exposure to solid
sulfur and/or sulfur-clay mixtures in the absence of other
standards, in the opinion of this writer. For Nuisance Dusts:
OSHA = 15 mg/m3 (total) and 5 mg/m3 (as respirable dust); ACGIH = 10
mg/m3 (total dust) or 5 mg/m3 (as respirable dust).
Since the combustion of sulfur is not uncommon and since its
combustion product in air is SULFUR DIOXIDE, the exposure limits for
this gas are shown: Sulfur Dioxide -OSHA=5 ppm TWA*; ACGIH
TLV=2 ppm & STEL=5ppm. [Abbreviations Key: mg/m3 designates
milligrams per cubic meter; ppm designates parts per million
(volume). ACC designates Acceptable Ceiling Concentration; TWA
designates Time Weighted Average; PEL is Permissible Exposure
SECTION 3. PHYSICAL DATA
Melting point: 231 - 246 Degrees F depending on temperature history;
Boiling point: 832.3 degrees F at one atmosphere pressure;
Specific gravity at room temperature: 2.07;
Vapor pressure at 140 Degrees F:1.15 x 10=4 mm Hg;
Vapor Density @ boiling point: 0.2278 pounds/cubic foot. [>1
Solubility in water: nil; Evaporation Rate: <<1 (ether=1);
Appearance and odor: Bright yellow flakes, crystals, pastilles,
prills, powders or granules. Odor: very slight - sweet to mercaptany.
Melted sulfur changes from lemon yellow color to orange to red to
black as temperature increases. A strong "sulfuric" odor is present
in liquid state. Viscosity of molten sulfur increases rapidly with
temperature and then falls back off with further temperature
increase. Note: Yellowstone Brand Disintegrating Sulfur is a pale
greenish yellow in color rather than yellow and may have an
ammonia-like and/or linseed-oil-like odor.
SECTION 4. FIRE AND EXPLOSION DATA
Auto-ignition point (air): 478-511 degrees F.; Flash Point: 335+F.
Mixtures of dust of any sulfur product suspended in air may also
be easily ignited at all ambient temperatures by sparks or
static electricity if the oxygen content is above 8%. Dust
explosions may result in enclosed spaces, similar to flour or
sawdust explosions. AVOID CREATING AIR-DUST MIXTURES. Flammable
Limits: LEL Dust 35 g/m3; UEL Dust 1400 g/m3. NOTE: May vary
considerably depending on particle size and dispersion.
Extinguishing media: Use water, water fog, dirt, sand, or a
carbon dioxide blanket to extinguish a fire. Seal closable tanks to
smother a fire. Hi-velocity jets of water or gas should be avoided
as these will tend to spread and splash burning material over a
larger area. Gentle water sprays or flooding work best. Damage to
product can be minimized by smothering (closing off air) or with
carbon dioxide flooding.
Special fire-fighting procedures: Protect product and
containers from ignition during nearby fires if possible. As a
precaution, keep exterior of tanks and bins cool with water spray to
help prevent ignition and to help control sulfur fire if ignition
occurs. If sulfur ignites: Stay upwind to avoid irritating-toxic
sulfur dioxide gas. Protect skin from molten sulfur burns. Indoors,
especially, wear self-contained breathing apparatus of the positive
pressure type. Protect the eyes. Combustion products (sulfur
dioxide) will cause severe coughing/eye & throat pain/and distress.
DO NOT INHALE! Avoid raising dust. Once a fire is controlled, post
fire watch for at least 4 hours. Small fires are easy to miss and
can linger for hours. Re-ignition may occur.
Unusual fire and explosion hazards: Combustion product is
sulfur dioxide, an irritating toxic gas which smells like burning
match heads. Dust air mixtures are highly flammable/explosive.
Sulfur fires are deep blue at night, with very short flames. Fire is
invisible by daylight except for smoke and heat. Burning material,
however, turns a deep red-black.
SECTION 5. HEALTH HAZARD DATA
Threshold limit value: none established for sulfur.
Effects of overexposure: Prolonged exposure to dust may cause
skin dryness, skin and eye irritation, respiratory irritation, or
possible dermatitis in sensitive persons. Do not take internally.
Avoid breathing dust.
General Hygiene: Wash exposed skin and hair thoroughly after
use. Launder clothing. If eye irritation occurs, flush eyes with
cool clean water. If eye or skin irritation persists, consult a
ELEMENTAL SULFUR ROUTES OF ENTRY & FIRST AID PROCEDURES:
Inhalation (smoke, Sulfur Dioxide or H2S): Remove victim to
fresh air. Start artificial resuscitation and/or CPR if not
breathing. Call a physician.
Eyes: Flush eyes with water for 15 minutes. Irritation may be
delayed several hours; usually disappears soon after exposure
ceases. Unless irritation is obviously minor, consult physician.
Also see THERMAL BURNS below.
Skin Contact: Wash skin/hair thoroughly with soap and water
after use to prevent irritation and transferring material to eyes
from fingers/hair. Prolonged contact with skin causes skin dryness.
[Has been used as an acne treatment for this reason] Lotions and
moisturizers may be useful in prevention. Also see THERMAL BURNS
Ingestion: If ingested consult a physician. Sulfur is not
considered highly toxic. Has been used medically in years past in
"laxatives, alterative, antiseptics, antiparasitics" and is a
component of animal feeds.
Thermal Burns: Flood EYES and/or SKIN with cool water at
once! Unless skin burn is obviously minor/superficial; seek medical
attention. See that solidified sulfur is carefully and gently
removed without tearing flesh. If eyes are involved seek medical
attention at once.
Medical Conditions that may be aggravated by exposure to
fumes/hydrogen sulfide/sulfur oxides include respiratory disease or
infections; cardiovascular diseases. [It should be noted however
that this company has successfully employed selected persons with
pre-existing heart disease and emphysema without adverse results and
that sulfur has been known and used since antiquity with remarkable
safety]. Sulfur is NOT listed as Carcinogen or Potential Carcinogen
under the National Toxicology Program of IARC or OSHA.
SECTION 6. REACTIVITY DATA
Elemental sulfur is stable by itself at ambient temperatures.
Conditions to avoid: mixtures of air and sulfur dust, sparks
or open flames, mixtures of sulfur and oxidizing agents (other than
sulfur) in general, large accumulations of sulfur dust which could
become airborne in an explosion or process disruption caused by
other materials. Examples of common oxidizing agents are
PERCHLORATES, NITRATES, CHLORATES, PERMANGANATES, PEROXIDES, OXYGEN,
HALOGENS, etc. Good housekeeping is important to minimize fire
General Information: Solid sulfur is satisfactorily
compatible with common materials of construction including steel and
aluminum. Molten sulfur may attack and degrade rubber and some
plastics. At still higher temperatures sulfur will react with
hydrocarbons evolving poisonous hydrogen sulfide gas in the absence
of air. The gas is also flammable. Sulfur is both an OXIDIZING AGENT
and a REDUCING AGENT. Sulfur will form sulfides with most metals,
including iron, and reacts vigorously with metals in the Sodium and
Magnesium groups on the periodic table. Sulfides of iron will
oxidize fairly rapidly in moist air. In the presence of other
readily oxidized combustibles (such as some oily materials) under
certain conditions, the heat liberated may be sufficient to result
in spontaneous ignition. This phenomenon has not been observed with
these pure Sulfur products or Disintegrating Sulfur in contact with
unprotected steel at ordinary ambient temperatures, however. Users
are cautioned against allowing inadvertent mixtures of sulfur, iron,
and miscellaneous oils to remain. Oxidation is accelerated by higher
temperatures. Heat buildup and ignition can be prevented by keeping
the sulfides wet until oxidation is complete. The literature on
sulfur is extensive. Consult a chemist before compounding.
Hazardous combustion products: Sulfur dioxide gas is
poisonous, irritating and a choking gas. It smells like burning
match heads (which also liberate Sulfur dioxide). Do not inhale! If
exposed get to fresh air at once. Treat over-exposure same as for
SECTION 7. SPILL OR LEAK PROCEDURES
Avoid setting fire to spill material. Have fire fighting media at
hand. Avoid creating dust and sparks with tools. Wear eye and face
protection, as small brief fires may flare up if a spark is struck.
Small spills may be cleaned up with shovel and broom. Large spills
may be cleaned with front end loaders etc. however, avoid dragging
blade on concrete, rocks as this will ignite sparks and potential
dust flare-ups. Post fire watch until all danger of fire is past.
Personnel should wash thoroughly all exposed skin and hair to
prevent irritation from dust.
Waste Disposal: Burial, landfill. Local farmers may want to
use the material as a plant nutrient or soil amendment provided the
only contamination is dirt, and provided they have received
competent advice from a soil chemist recommending the application of
sulfur and appropriate application rates.
SECTION 8. SPECIAL PROTECTION INFORMATION
recommended - dust masks suitable for use with irritating dust.
Indoor use areas should have sufficient local exhaust to remove dust
as it is released into the air.
Eye protection is recommended around dust for personal
Skin & General: Work gloves and long sleeved shirts etc. help
keep material off of skin of sensitive persons prone to skin
irritation or dermatitis. Use of a good skin moisturizer before and
after work helps to avert dry skin problems and discomfort. Be sure
to select a skin care product which you are not allergic to.
Remember also: fire fighting tools/media should be readily
available. (water, dirt, shovels)
SECTION 9. SPECIAL PRECAUTIONS and MAINTENANCE NOTES
Handling and Storage:
Handle loose product with well grounded non-sparking process/storage
equipment. Dry sulfur materials may generate static electricity and
sparking during conveying or grinding. Avoid handling solid sulfur
at high velocity in air. Inert gas blanketing is useful in
preventing fires and explosions in processing and grinding
equipment. Do not use near sparking equipment or open flames. When
handling loose , bulk sulfur take special care to prevent steel
forks, loader buckets etc. from dragging on rocks or concrete
(sparks) and to prevent crushing product with equipment which will
create dust. Exclude rocks, sand, loose iron , and other tramp
material from entering any augers, elevator parts, or other
mechanical handling systems.(Tramp material will cause sparking).
Use good housekeeping practice; Do not allow large amounts of waste
to accumulate. Enclosed equipment containing dust in air must be
adequately explosion-vented or strong enough to withstand the
pressures developed in a dust explosion. Do not store near oxidizing
materials, or near hot equipment. In the presence of moisture over
long periods of time, some sulfur will convert to sulfuric acid
which, of course, is corrosive to metals and attacks paper,
concrete, wood products, etc. Store product in a dry place.
Repair & Maintenance Notes: Be familiar with all information
on this sheet and use common sense. Have fire fighting media at
Vessel Entry. Isolate vessel from process and heat input. Do
not enter hot tanks. If molten sulfur has been generated in the
process, be advised that sulfur may remain molten under a crust for
a considerable time. Ventilate enclosed tanks with fresh air and
purge of all potentially explosive air/dust mixtures before and
during entry. Check air in enclosed spaces for flammability and
oxygen and suspended dust before entry. If fires have occurred,
check for Sulfur Dioxide. Wet down residual sulfur on walls to
control dust and fire hazard while cleaning and working. Open-topped
vessels may be swept clean wet or dry with non sparking brooms. Wear
dust protection for eyes and breathing, long sleeved shirt/pants. If
vessel is not to be re-used at once, rinse and dry thoroughly to
Welding/Cutting/Grinding: Remove bulk sulfur from equipment
or wet down thoroughly or blanket with inert gas to prevent
ignition. Fully protect material in nearby equipment/containers from
sparks or remove it. Eliminate all sources of sulfur dust suspended
in air in welding/cutting/grinding area. Wet work is usually
preferable. Welding/cutting combustion products will contain sulfur
dioxide as well as noxious metal oxides. Do not breathe fumes.
Ventilate properly or wear breathing protection suitable for both
sulfur dioxide and welding fumes. Posting fire watch during and
after such work for 4 hours recommended. For further information see
also sections 4,5,6,7, & 8 especially.
Montana Sulphur & Chemical Company will be pleased to work with
customers in developing safety rules and procedures for particular
situations - contact us.
NOTICE: The information and judgments contained herein are
based on experience and data considered accurate, however, no
warranty is expressed or implied regarding accuracy or the results
to be obtained from use. Vendor assumes no responsibility for injury
to vendee or third person proximately caused by the material if
reasonable safety procedures are not adhered to. Additionally,
vendor assumes no responsibility for injury to vendee or third
persons proximately caused by abnormal use of the material even if
reasonable and normal safety procedures are followed. Furthermore,
vendee absolutely assumes full responsibility for the risks in his
use of the material.
Prepared by Lawrence Zink, Chemist
Montana Sulphur & Chemical Company -- January 23,1997
Last Revision 12/12/06. [This sheet printed 2/26/2008] words=2422