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MATERIAL SAFETY DATA SHEET
I PRODUCT IDENTIFICATION
Manganese Metallic element
Trade Name: Chem ical Nature:
Mn 54.94
Form ula: Molecular Weight:
7439-9 6-5
CAS #:
II HAZAR DOUS INGRED IENTS
Hazardous Component % OSHA/PEL ACGIH/TLV Sec. 302 Sec. 304 Sec. 313
5 m g/m 3 5 m g/m 3
Manganese 0-100 No No No
III PHYSICAL DATA
1962 oC 1245 oC
Boiling Point 760 mm Hg: Melting Point:
Vapor Pressure at 1292 oC:
7.20 g/cc 1 mm
Specific Gravity:
N/A N/A
Vapo r Density: % V olatiles by Weight:
Steel gray color, no odor Decom poses
Appearance and Odor: Solubility in H 2O:
IV FIRE AND EXPLOSION H AZARDS DATA
Flash Point (Method Used): N/A Autoignition Temperature: N/A
Flam mab le Limits: Upper: N/A Lower: N/A
Extingu ishing Media: Not considered combustible except in powder form. If material involved in a fire use dry chemical
extinguishing agents, dry sand, carbon dioxide, DO NOT USE W ATER.
Special Firefighting Procedures: Wear NIOSH/MSHA approved self-contained breathing apparatus, protective clothing, boots and
gloves. If without risk, remove material from fire area. Isolate runoff to prevent environmental pollution.
Unusual Fire & Explosion Hazards: Flam ma ble an d m ode rately explosive in the form of du st or po wd er when exposed to flam e.
Dust may be pyrophoric in air and may explode wh en heated in carbon dioxide Mixtures of aluminum dust and manganese dust may
exp lode in air. M ixture s with am mo nium nitrate m ay ex plod e when heated. M ay ignite on contact flu orine, chlo rine + heat,
hydrogen peroxide, bromine pentafluoride, sulfur dioxide + heat. Violent reaction with NO 2 + ox idants. Incan descent reaction with
pho sphorus, nitryl flu oride, and nitric acid. W ill react w ith water or steam to pro duc e hydrogen . Ma nga nese ma y react with
oxid izing agen ts as well.
V HEALTH HAZARD INFORMATION
Effects of Exposure:
Some manganese compounds are experimental tumorigens. They can cause central nervous and pulmonary system damage
by in halatio n of fum es and du st. Very few poiso ning s hav e occ urred from in gestion. Ch ronic mang anese po isonin g is a clearly
characterized disease which results from inhalation of fumes or dusts of manganese. The central nervous system is the chief site of
damage. Exposure to dusts and fumes can possibly increase the incidence of upper respiratory infections and pneumonia (Sax,
Dang erous Properties of Industrial Materials, eighth edition).
Acute E ffects:
Inhalation: Inhalation of manganese compounds is considered the primary route of exposure. It may cause irritation of the
respiratory tract and m ucous m emb ranes. Inhalation of mangan ese comp ounds, fine dusts and fum es may cau se metal fume fev er.
Ingestion: Absorption of m anganese co mp ounds from the gastrointestinal tract is poor un der no rmal condition s.
Skin : May cause irritation, moderately toxic by subcutaneous route.
Eye: May cause irritation.
Chro nic Effects:
Inhalation: Chronic inhalation of manganese compounds, dust particles, approximately 3 um in size, for a period of a few months
may cause pulmonary pneumonitis. However, dust particles approximately 5 um in size, inhaled for about 4 hours daily for three
mo nths d id no t prod uce pneum onitis, but m ay ca use fib rotic ch ang es in the lungs, de crease in hem oglo bin and a chan ge in eryth rocy te
levels. Manganese compounds may also cause manganism, psychic and neurological disorders affecting the central nervous system,
to develop (m anganism is not fatal but can cause perm anent disability).
Ingestion: No chronic health effects recorded.
Skin : May cause dermatitis.
Eye: Irritant dusts may cause conjunctivitis damage.
Routes of Entry: Inhalation
Target Organs: May affect the central nervous system, kidney s, respiratory system and liver.
Medical Conditions Generally Aggravated by Exposure: It has been recorded that when ex posed to mangan ese dust an d fum es,
there is a higher incidence of upper respiratory infection and pneumonia compared to the general population.
Carcino genicity: NTP: No IARC: No OSHA: No
EMERG ENCY AND FIRST AID PROCEDURES:
INHALATION: Remove to fresh air. Keep victim warm and quiet, give oxygen if breathing is difficult. Seek medical attention
immediately.
INGESTION: Not applicable.
SK IN: Rem ove any contam inated clothing, b rush ma terial off of skin, flush with running water, wash carefu lly with soap and w ater.
Seek med ical attention if irritation persists.
EYE: Flush with lukewarm water, lifting upper and lower eyelids, for at least 15 minutes. Seek medical attention if symptoms
persist.
VI REACTIVITY DATA
Stability: Stable
Co nditio ns to Av oid: Accidental contact with oxidizers and haloge n gases.
Incompatibility (Material to Avoid): Aluminum and air, chlorine, fluorine, hydrogen peroxide, nitric acid, nitrogen dioxide,
phosphorous, sulfur dioxide, oxygen, bromine pentafluoride, oxidizing agents, water and steam.
Haz ardous D ecomposition Produc ts: Hydrogen gas
Hazardous Polymerization: Will not occur
VII SPILL OR LEAK PROC EDURES
Steps to be Taken in Case Material is Released or Spilled: We ar appropriate respira tory and protective equipm ent specified in
section VIII. Isolate spill area, provide ventilation and extinguish sources of ignition. Vacuum up spill using a high efficiency
particulate absolute (HEPA) air filter and place in a closed container for proper disposal. Take care not to raise dust. Use non-
sparking tools.
Waste Disposal Method: In accord ance w ith Loca l, State and Federal W aste Dispo sal Regu lations.
VIII SPECIAL PROTECTION INFORMATION
-Manganese 2-
Respiratory Protection (Specify Type): NIOSH/MS HA approv ed respirator for hazardous dusts and mists or self-contained
breathing app aratus.
Ventilation: Use local exhaust to maintain exposure below TLV. Hand le in a dry, inert, controlled environment. Handle under
argon. General exhaust is not recommended.
Protective Gloves: Neoprene
Eye Protection: Safety Glasses
Other Protective Equipment: Wear protective clothing to p revent contam ination of sk in and c lothes.
IX SPECIAL PRECAUTIONS
Precautions to Be Taken in Handling and Storage: Manganese metal will react with water or steam. Handle and store in a
con trolled environme nt and inert gas su ch as argo n. Avoid breathing dust.
Wo rk Practices: Imp lem ent en gineering and wo rk practice controls to re duc e and ma intain c onc entration o f exp osure at low levels.
Use good housekeeping and sanitation practices. Do not use tobacco or food in work area. Wash thoroughly before eating or
smok ing. Do not blow dust off clothing or skin with comp ressed air.
Some of the chemicals listed herein are research or experimental substances which may be toxic, as defined by various
governmental regulations. In accordance with Environmental Protection Agency regulations and the Toxic Substance Control Act
(TSCA), these materials should only be handled by, or under direct supervision of a "technically qualified individual" as defined in 40
CFR 7 10.2(aa)/
The above information is accurate to the best of our knowledge. However, since data, safety standards and governmental
regulations are subject to changes, and the conditions of handling and use or misuse are beyond our control, ESPI makes no warranty,
either expressed or implied with respect to the completeness or continuing accuracy of the information contained herein, and
disclaim s all liability fo r reliance thereon . Users should satisfy themselves that they have all current info rmation relative to their
particular use.
Issued By: S. Dierks
Date: June 2002
-Manganese 3-
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