Synonyms: 1,3,5,7-Tetraazatricyclo[3.3.1.1(3,7)]decane; Hexamethylenetetramine; Formamine; Urotropin; HMTA; Hexaform
CAS No.: 100-97-0
Molecular Weight: 140.19
Chemical Formula: (CH2)6N4
Product Codes:
J.T. Baker: 2556, N145
Mallinckrodt: 5180
Ingredient CAS No Percent Hazardous --------------------------------------- ------------ ------------ --------- Methenamine 100-97-0 100% Yes
Emergency Overview
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WARNING! FLAMMABLE SOLID. MAY BE HARMFUL IF SWALLOWED OR INHALED. MAY CAUSE IRRITATION TO SKIN, EYES, AND RESPIRATORY TRACT. MAY CAUSE SENSITIZATION BY INHALATION AND SKIN CONTACT.
SAF-T-DATA(tm) Ratings (Provided here for your convenience)
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Health Rating: 3 - Severe (Life)
Flammability Rating: 3 - Severe (Flammable)
Reactivity Rating: 1 - Slight
Contact Rating: 3 - Severe (Life)
Lab Protective Equip: GOGGLES & SHIELD; LAB COAT & APRON; VENT HOOD; PROPER GLOVES
Storage Color Code: Red (Flammable)
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Potential Health Effects
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Inhalation:
May cause irritation to the respiratory tract. Symptoms may include coughing, sore throat, labored breathing, and chest pain. Inhalation of dust may produce an allergic reaction. The risk of allergic sensitization increases with repeated direct exposure.
Ingestion:
No information found.
Skin Contact:
May cause irritation with redness and pain. May produce an allergic reaction. The risk of allergic sensitization increases with repeated direct exposure.
Eye Contact:
May cause irritation, redness and pain.
Chronic Exposure:
Repeated ingestion (4-8 grams per day for 3-4 weeks) may cause symptoms similar to acute poisoning. Prolonged or repeated skin exposure may cause sensitization with dermatitis.
Aggravation of Pre-existing Conditions:
No information found.
Inhalation:
Remove to fresh air. Get medical attention for any breathing difficulty.
Ingestion:
Induce vomiting immediately as directed by medical personnel. Never give anything by mouth to an unconscious person. Call a physician.
Skin Contact:
Immediately flush skin with plenty of water for at least 15 minutes. Call a physician if irritation develops.
Eye Contact:
In case of contact, immediately flush eyes with plenty of water for at least 15 minutes, lifting upper and lower eyelids occasionally. Call a physician if irritation persists.
Fire:
Flash point: 250C (482F) CC
As with most organic solids, fire is possible at elevated temperatures or by contact with an ignition source. Burns when exposed to heat or flame.
Explosion:
Fine dust dispersed in air in sufficient concentrations, and in the presence of an ignition source is a potential dust explosion hazard. Above the flash point, explosive vapor-air mixtures may be formed. Sensitive to mechanical impact. Sensitive to static discharge.
Fire Extinguishing Media:
Water spray, dry chemical, alcohol foam, or carbon dioxide. Apply cooling water until well after fire is out.
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.
Remove all sources of ignition. Ventilate area of leak or spill. Wear appropriate personal protective equipment as specified in Section 8. Spills: Clean up spills in a manner that does not disperse dust into the air. Use non-sparking tools and equipment. Reduce airborne dust and prevent scattering by moistening with water. Pick up spill for recovery or disposal and place in a closed container.
Keep in a tightly closed container, stored in a cool, dry, ventilated area. Protect against physical damage. Isolate from any source of heat or ignition. Isolate from oxidizing materials. 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:
None established.
Ventilation System:
A system of local and/or general exhaust is recommended to keep employee exposures as low as possible. 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):
For conditions of use where exposure to the dust or mist is apparent, a half-face dust/mist respirator may be worn. For emergencies or instances where the exposure levels are not known, use a full-face 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 crystals.
Odor:
Odorless.
Solubility:
1 g soluble in 1.5 ml water
Density:
1.33 @ - 5C (21F)
pH:
Aqueous solution is alkaline.
% Volatiles by volume @ 21C (70F):
No information found.
Boiling Point:
Not applicable.
Melting Point:
280C (536F)
Vapor Density (Air=1):
4.9
Vapor Pressure (mm Hg):
0.0035 hPa at 20 C
Evaporation Rate (BuAc=1):
No information found.
Stability:
Stable under ordinary conditions of use and storage. Hygroscopic. Readily absorbs moisture from the air. Solutions are strong bases.
Hazardous Decomposition Products:
Carbon oxides, nitrogen oxides and formaldehyde gas form when heated to decomposition.
Hazardous Polymerization:
Will not occur.
Incompatibilities:
Acids, sodium peroxide, and oxidizing materials. Corrosive to some metals, such as aluminum and zinc.
Conditions to Avoid:
Heat, flames, ignition sources and incompatibles.
Oral mouse LD50: 560 mg/kg. Investigated as a tumorigen, mutagen.
--------\Cancer Lists\------------------------------------------------------ ---NTP Carcinogen--- Ingredient Known Anticipated IARC Category ------------------------------------ ----- ----------- ------------- Methenamine (100-97-0) No No None
Environmental Fate:
No information found.
Environmental Toxicity:
96 Hr LC50 fathead minnow: 49800 mg/L (flow-through)
Whatever cannot be saved for recovery or recycling should be managed in an appropriate and approved waste disposal 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: HEXAMETHYLENETETRAMINE
Hazard Class: 4.1
UN/NA: UN1328
Packing Group: III
Information reported for product/size: 2.5KG
International (Water, I.M.O.)
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Proper Shipping Name: HEXAMETHYLENETETRAMINE
Hazard Class: 4.1
UN/NA: UN1328
Packing Group: III
Information reported for product/size: 2.5KG
--------\Chemical Inventory Status - Part 1\--------------------------------- Ingredient TSCA EC Japan Australia ----------------------------------------------- ---- --- ----- --------- Methenamine (100-97-0) Yes Yes Yes Yes --------\Chemical Inventory Status - Part 2\--------------------------------- --Canada-- Ingredient Korea DSL NDSL Phil. ----------------------------------------------- ----- --- ---- ----- Methenamine (100-97-0) Yes Yes No Yes --------\Federal, State & International Regulations - Part 1\---------------- -SARA 302- ------SARA 313------ Ingredient RQ TPQ List Chemical Catg. ----------------------------------------- --- ----- ---- -------------- Methenamine (100-97-0) No No No No --------\Federal, State & International Regulations - Part 2\---------------- -RCRA- -TSCA- Ingredient CERCLA 261.33 8(d) ----------------------------------------- ------ ------ ------ Methenamine (100-97-0) No No No Chemical Weapons Convention: No TSCA 12(b): No CDTA: No SARA 311/312: Acute: Yes Chronic: Yes Fire: Yes Pressure: No Reactivity: No (Pure / Solid)
Australian Hazchem Code: 1[T]
Poison Schedule: None allocated.
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.
NFPA Ratings: Health: 2 Flammability: 2 Reactivity: 0
Label Hazard Warning:
WARNING! FLAMMABLE SOLID. MAY BE HARMFUL IF SWALLOWED OR INHALED. MAY CAUSE IRRITATION TO SKIN, EYES, AND RESPIRATORY TRACT. MAY CAUSE SENSITIZATION BY INHALATION AND SKIN CONTACT.
Label Precautions:
Avoid contact with eyes, skin and clothing.
Avoid breathing dust.
Keep container closed.
Use with adequate ventilation.
Wash thoroughly after handling.
Keep away from heat, sparks and flame.
Label First Aid:
If swallowed, induce vomiting immediately as directed by medical personnel. Never give anything by mouth to an unconscious person. Call a physician. In case of contact, immediately flush skin or eyes with plenty of water for at least 15 minutes. Call a physician if irritation develops or persists. If inhaled, remove to fresh air. Get medical attention for any breathing difficulty.
Product Use:
Laboratory Reagent.
Revision Information:
No Changes.
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Prepared by: Environmental Health & Safety
Phone Number: (314) 654-1600 (U.S.A.)