MSDS Name:Zinc sulfate heptahydrate
Synonym:White vitriol; zinc vitriol

EMERGENCY OVERVIEW
Harmful if swallowed. Risk of serious damage to eyes. Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Potential Health Effects
Eye:
Contact may cause severe eye irritation and possible eye damage.
Skin:
Causes skin irritation.
Ingestion:
May cause irritation of the digestive tract. May be harmful if swallowed.
Inhalation:
Dust is irritating to the respiratory tract. May be harmful if inhaled.
Chronic:
No information found.

Eyes: In case of contact, immediately flush eyes with plenty of water for at least 15 minutes. Get medical aid immediately.
Skin:
In case of contact, flush skin with plenty of water. Remove contaminated clothing and shoes. Get medical aid if irritation develops and persists. Wash clothing before reuse.
Ingestion:
If swallowed, do not induce vomiting unless directed to do so by medical personnel. Never give anything by mouth to an unconscious person. Get medical aid.
Inhalation:
If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:
Treat symptomatically and supportively.

General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear.
Extinguishing Media:
Substance is noncombustible; use agent most appropriate to extinguish surrounding fire.

General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal container. Avoid generating dusty conditions. Provide ventilation.
This material is a water pollutant and should not be emptied into drains.

Handling:
Wash thoroughly after handling. Use with adequate ventilation.
Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid breathing dust.
Storage:
Store in a cool, dry, well-ventilated area away from incompatible substances.

Engineering Controls:
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 7446-20-0: CAS# 7733-02-0: Personal Protective Equipment Eyes: Wear chemical splash goggles.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.

Physical State: Crystals
Color: white
Odor: odorless
pH: 4.4-6 (5% aq soln)
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 100 deg C
Autoignition Temperature: Not applicable.
Flash Point: Not applicable.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: > 500 deg C
Solubility in water: Soluble in water
Specific Gravity/Density: 3.54 g/cm3 @ 25C
Molecular Formula: ZnSO4.7H2O
Molecular Weight: 287.55

Chemical Stability:
Stable under normal temperatures and pressures. Efflorescent (tending to lose water molecules of hydration) in dry air.
Conditions to Avoid:
Excess heat.
Incompatibilities with Other Materials:
Strong bases.
Hazardous Decomposition Products:
Oxides of sulfur, toxic fumes of zinc oxide.
Hazardous Polymerization: Will not occur.

RTECS#:
CAS# 7446-20-0: ZH5300000 CAS# 7733-02-0: ZH5260000 LD50/LC50:
CAS# 7446-20-0: Oral, mouse: LD50 = 200 mg/kg; Oral, rat: LD50 = 1260 mg/kg.
CAS# 7733-02-0: Draize test, rabbit, eye: 420 ug Moderate; Oral, mouse: LD50 = 245 mg/kg; Oral, rabbit: LD50 = 2 gm/kg.
Carcinogenicity:
Zinc sulfate, heptahydrate - Not listed by ACGIH, IARC, or NTP.
Zinc sulfate anhydrous - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

Other No information available.

Dispose of in a manner consistent with federal, state, and local regulations.

IATA
Not regulated as a hazardous material.
IMO
Not regulated as a hazardous material.
RID/ADR
Not regulated as a hazardous material.
USA RQ: CAS# 7733-02-0: 1000 lb final RQ; 454 kg final RQ

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XN N
Risk Phrases:
R 22 Harmful if swallowed.
R 41 Risk of serious damage to eyes.
R 50/53 Very toxic to aquatic organisms, may cause
long-term adverse effects in the aquatic environment.
Safety Phrases:
S 22 Do not breathe dust.
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 39 Wear eye/face protection.
S 46 If swallowed, seek medical advice immediately
and show this container or label.
S 60 This material and its container must be
disposed of as hazardous waste.
S 61 Avoid release to the environment. Refer to
special instructions/safety data sheets.
WGK (Water Danger/Protection)
CAS# 7446-20-0: 1
CAS# 7733-02-0: 1
Canada
CAS# 7446-20-0 is listed on Canadas DSL List.
CAS# 7733-02-0 is listed on Canadas DSL List.
CAS# 7446-20-0 is not listed on Canadas Ingredient Disclosure List.
CAS# 7733-02-0 is listed on Canadas Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 7446-20-0 is not on the TSCA Inventory because it is a hydrate.
It is considered to be listed if the CAS number for the anhydrous form
is on the inventory (40CFR720.3(u)(2)).
CAS# 7733-02-0 is listed on the TSCA inventory.