HEXAMETHYLENETETRAMINE

PHYSICAL DESCRIPTION: Odorless white crystalline powder or colorless lustrous crystals. Sublimes in a vacuum at about 505°F with some decomposition. Solutions are strong bases (pH of 0.2 molar aqueous solution is 8.4). (NTP, 1992)

• Highly Flammable

Highly flammable. Burns readily on contact with a flame with a smokeless flame. Finely powdered dust is significant dust explosion hazard. Water soluble.

Special Hazards of Combustion Products: Formaldehyde gas and ammonia may be given off when hot. (USCG, 1999)

SYMPTOMS: Symptoms of exposure to this compound may include irritation of the skin, eyes, mucous membranes and upper respiratory tract. Exposure may cause skin rash and kidney irritation. Inhalation may cause coughing and shortness of breath. It may cause corrosion of the respiratory tract. Skin contact may cause redness, pain, rashes and burns of the skin. Eye contact may cause redness, pain and blurred vision. Ingestion of this compound may cause urinary tract irritation, digestive disturbances, and severe nephritis which may be fatal. If large amounts are ingested it can cause sore throat, abdominal pain, vomiting, diarrhea, painful and frequent urination, and blood in the urine. Large oral doses can also cause gastrointestinal irritation, albuminuria, hemorrhagic cystitis, mild azotemia, gross hematuria and dysuria, with inflammatory lesions in the renal tubules, renal pelvis, and urinary bladder. It can also cause irritation of the bladder, and nausea. Repeated use can lead to skin sensitization with urticaria or dermatitis. Prolonged contact can cause smarting and reddening of the skin. It can produce an asthma-like condition. Kidney damage has been reported.

ACUTE/CHRONIC HAZARDS: This compound may be harmful by inhalation, ingestion or skin absorption. It is an irritant of the skin, eyes, mucous membranes and upper respiratory tract. When heated to decomposition it emits toxic fumes of carbon monoxide, carbon dioxide, nitrogen oxides, ammonia, and formaldehyde. (NTP, 1992)

HEXAMETHYLENETETRAMINE is hygroscopic. It is sensitive to exposure to heat. This chemical is incompatible with oxidizing agents. It is also incompatible with acids. It reacts violently with sodium peroxide. It reacts explosively with 1-bromopentaborane(9) at temperatures above 194°F. The complex with iodine deflagrates at 280°F. The 1:1 addition complex with iodoform has exploded at 352°F. It is corrosive to some metals, such as aluminum and zinc (NTP, 1992). Special Hazards of Combustion Products: Formaldehyde gas and ammonia may be given off when hot (USCG, 1999).

• Amines, Phosphines, and Pyridines

Use caution: Liquids with this reactive group classification have been known to react with the absorbent listed below.

• Mineral-Based & Clay-Based Absorbents

Excerpt from 133 [Flammable Solids]:

IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area for at least 25 meters (75 feet) in all directions.

LARGE SPILL: Consider initial downwind evacuation for at least 100 meters (330 feet).

FIRE: If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2020)

Excerpt from 133 [Flammable Solids]:

SMALL FIRE: Dry chemical, CO2, sand, earth, water spray or regular foam.

LARGE FIRE: Water spray, fog or regular foam. If it can be done safely, move undamaged containers away from the area around the fire. Fire Involving Metal Pigments or Pastes (e.g. "Aluminum Paste") Aluminum Paste fires should be treated as a combustible metal fire. Use DRY sand, graphite powder, dry sodium chloride-based extinguishers or class D extinguishers. Also, see 170 .

FIRE INVOLVING TANKS OR CAR/TRAILER LOADS: Cool containers with flooding quantities of water until well after fire is out. For massive fire, use unmanned master stream devices or monitor nozzles; if this is impossible, withdraw from area and let fire burn. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks engulfed in fire. (ERG, 2020)

SMALL SPILLS AND LEAKAGE: If you spill this chemical, you should dampen the solid spill material with water, then transfer the dampened material to a suitable container. Use absorbent paper dampened with water to pick up any remaining material. Seal your contaminated clothing and the absorbent paper in a vapor-tight plastic bag for eventual disposal. Wash all contaminated surfaces with a soap and water solution. Do not reenter the contaminated area until the Safety Officer (or other responsible person) has verified that the area has been properly cleaned.

STORAGE PRECAUTIONS: You should store this chemical under refrigerated temperatures, and keep it away from oxidizing materials. Protect from exposure to moisture. (NTP, 1992)

RECOMMENDED RESPIRATOR: Where the neat test chemical is weighed and diluted, wear a NIOSH-approved half face respirator equipped with an organic vapor/acid gas cartridge (specific for organic vapors, HCl, acid gas and SO2) with a dust/mist filter. (NTP, 1992)

No information available.

EYES: First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

SKIN: IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.

INHALATION: IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used; if not available, use a level of protection greater than or equal to that advised under Protective Clothing.

INGESTION: DO NOT INDUCE VOMITING. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. Be prepared to transport the victim to a hospital if advised by a physician. If the victim is convulsing or unconscious, do not give anything by mouth, ensure that the victim's airway is open and lay the victim on his/her side with the head lower than the body. DO NOT INDUCE VOMITING. IMMEDIATELY transport the victim to a hospital. (NTP, 1992)

• ACETO HMT
• AMINOFORM
• AMMOFORM
• AMMONIOFORMALDEHYDE
• ANTIHYDRAL
• CYSTOGEN
• DUIREXOL
• EKAGOM H
• FORMAMINE
• FORMIN
• FORMIN (HETEROCYCLE)
• HA
• HERAX UTS
• HETERIN
• HEXA
• HEXA (VULCANIZATION ACCELERATOR)
• HEXA-FLO-PULVER
• HEXAFORM
• HEXAMETHYLENAMINE
• HEXAMETHYLENETETRAMINE
• HEXAMINE
• HEXAMINE (HETEROCYCLE)
• HEXASAN
• HMT
• METHENAMIDE
• METHENAMIN
• METHENAMINE
• METHENEAMINE
• NOCCELER H
• PREPARATION AF
• S 4
• S 4 (HETEROCYCLE)
• SANCELER H
• 1,3,5,7-TETRAAZAADAMANTANE
• URAMIN
• URATRINE
• URITONE
• URODEINE
• UROTROPIN
• VULKACIT H 30
• XAMETRIN