Tellurium fluoride (TeF6), (OC-6-11)-

241.59000

243.89700

232-027-0

JWI7143IXR

2195

Colorless gas

0

2.14040

Tellurium hexafluoride is a colorless gas with a repulsive odor. It is very toxic by inhalation and skin absorption. When heated to high temperatures, it may emit toxic fluoride and tellurium fumes. It is heavier than air. Under prolonged exposure to fire or intense heat the containers may violently rupture and rocket. It reacts with water to yield toxic vapors.

2.499 g/cm³ @ Temp: -10 °C

-37

-38,9°C

n20/D 1.45

slowly mixes with H2O, hydrolyzing to telluric acid [MER06]

2-8°C

>1 atm

2.499 at 14°F

Nonflammable Gas

Repulsive odor

Reacts with H2O

TELLURIUM HEXAFLUORIDE reacts with water to yield toxic hydrogen fluoride vapors. It emits very toxic fumes of fluoride and tellurium. Decomposes in water, acid, and alkali. [EPA, 1998].

Fluoride Salts, Soluble

Water-Reactive

TELLURIUM HEXAFLUORIDE is a colorless, toxic gas, when heated to decomposition it emits very toxic fumes containing metallic tellurium and tellurium fluorides [Lewis, 3rd ed., 1993, p. 1207].

Nonflammable Gas

Does not attack glass when pure; corrodes mercury

Critical temperature: 83 °C

2.3

2195

20-31-34

3/7-9-36/37/39-45

WY2800000

Xi

DECOMPOSES IN HOT & COLD WATER, ACID & ALKALI

SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.|Not recommendable method: Thermal destruction. Peer review: Insoluble TE /tellurium/ cmpd should be solidified before landfill. /Insol tellurium cmpd/ (Peer-review conclusions of an IRPTC expert consultation (May 1985))

Water [Note: Hydrolyzes slowly in water to telluric acid].

USEPA; Chemical Profiles: Tellurium Hexafluoride, 3p (1985), Monograph. Chemical Safety Information Sheet.

Container may explode in heat of fire. When heated to decomposition, it emits very toxic fumes of fluoride and tellurium. Decomposes in water, acid, and alkali. (EPA, 1998)

Keep unnecessary people away; isolate hazard area and deny entry. Stay upwind; keep out of low areas. Ventilate closed spaces before entering them. Wear positive pressure breathing apparatus and full protective clothing. Do not get water inside container. Move container from fire area if you can do so without risk. Stay away from ends of tanks. Spray cooling water on containers that are exposed to flames until well after fire is out. Isolate area until gas has dispersed. This material is not combustible. Small fires: dry chemical or carbon dioxide. Large fires: water spray, fog or foam. (EPA, 1998)

Excerpt from ERG Guide 125 [Gases - Corrosive]: As an immediate precautionary measure, isolate spill or leak area for at least 100 meters (330 feet) in all directions. SPILL: See ERG Table 1 - Initial Isolation and Protective Action Distances on the UN/NA 2195 datasheet. FIRE: If tank, rail car or tank truck is involved in a fire, ISOLATE for 1600 meters (1 mile) in all directions; also, consider initial evacuation for 1600 meters (1 mile) in all directions. (ERG, 2016)

Excerpt from ERG Guide 125 [Gases - Corrosive]: Fully encapsulating, vapor-protective clothing should be worn for spills and leaks with no fire. Do not touch or walk through spilled material. Stop leak if you can do it without risk. If possible, turn leaking containers so that gas escapes rather than liquid. Prevent entry into waterways, sewers, basements or confined areas. Do not direct water at spill or source of leak. Use water spray to reduce vapors or divert vapor cloud drift. Avoid allowing water runoff to contact spilled material. Isolate area until gas has dispersed. (ERG, 2016)

Skin: No recommendation is made specifying the need for personal protective equipment for the body. Eyes: No recommendation is made specifying the need for eye protection. Wash skin: No recommendation is made specifying the need for washing the substance from the skin (either immediately or at the end of the work shift). Remove: No recommendation is made specifying the need for removing clothing that becomes wet or contaminated. Change: No recommendation is made specifying the need for the worker to change clothing after the work shift. (NIOSH, 2016)|RESPIRATORS MAY BE USED WHEN ... CONTROLS ARE NOT /IN EFFECT/ ... ALSO ... FOR OPERATIONS WHICH REQUIRE ENTRY INTO ... CLOSED VESSELS, & IN EMERGENCY SITUATIONS. ... THE ONLY RESPIRATORS PERMITTED ARE THOSE ... APPROVED BY MINE SAFETY & HEALTH ADMINISTRATION ... OR BY NIOSH.|Respirator Recommendations: Up to 0.2 ppm: (APF = 10) Any supplied-air respirator.|Respirator Recommendations: Up to 0.5 ppm: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode.|Respirator Recommendations: Up to 1 ppm: (APF = 50) Any supplied-air respirator that has a tight-fitting facepiece and is operated in a continuous-flow mode/(APF = 50) Any self-contained breathing apparatus with a full facepiece/(APF = 50) Any supplied-air respirator with a full facepiece.|For more Personal Protective Equipment (PPE) (Complete) data for TELLURIUM HEXAFLUORIDE (6 total), please visit the HSDB record page.|(See protection codes)

Nonflammable

1. VENTILATE AREA OF LEAK TO DISPERSE GAS. 2. STOP FLOW OF GAS. IF SOURCE OF LEAK IS A CYLINDER & THE LEAK CANNOT BE STOPPED IN PLACE, REMOVE THE LEAKING CYLINDER TO A SAFE PLACE IN THE OPEN AIR, AND REPAIR THE LEAK OR ALLOW THE CYLINDER TO EMPTY.

SRP: The scientific literature for the use of contact lenses in industry is conflicting. The benefit or detrimental effects of wearing contact lenses depend not only upon the substance, but also on factors including the form of the substance, characteristics and duration of the exposure, the uses of other eye protection equipment, and the hygiene of the lenses. However, there may be individual substances whose irritating or corrosive properties are such that the wearing of contact lenses would be harmful to the eye. In those specific cases, contact lenses should not be worn. In any event, the usual eye protection equipment should be worn even when contact lenses are in place.

If ... THERE IS NO FIRE, go directly to the Table of Initial Isolation and Protective Action Distances /(see table below)/ ... to obtain initial isolation and protective action distances. IF THERE IS A FIRE, or IF A FIRE IS INVOLVED, go directly to the appropriate guide /(see guide(s) below)/ and use the evacuation information shown under PUBLIC SAFETY.|/GUIDE 125: GASES - CORROSIVE/ Fire or Explosion: Some may burn but none ignite readily. Vapors from liquefied gas are initially heavier than air and spread along ground. Some of these materials may react violently with water. Cylinders exposed to fire may vent and release toxic and/or corrosive gas through pressure relief devices. Containers may explode when heated. Ruptured cylinders may rocket.|/GUIDE 125: GASES - CORROSIVE/ Health: TOXIC; may be fatal if inhaled, ingested or absorbed through skin. Vapors are extremely irritating and corrosive. Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control may cause pollution.|/GUIDE 125: GASES - CORROSIVE/ Public Safety: CALL Emergency Response Telephone Number on Shipping Paper first. If Shipping Paper not available or no answer, refer to appropriate telephone number listed on the inside back cover. As an immediate precautionary measure, isolate spill or leak area for at least 100 meters (330 feet) in all directions. Keep unauthorized personnel away. Stay upwind. Many gases are heavier than air and will spread along ground and collect in low or confined areas (sewers, basements, tanks). Keep out of low areas. Ventilate closed spaces before entering.|For more DOT Emergency Guidelines (Complete) data for TELLURIUM HEXAFLUORIDE (9 total), please visit the HSDB record page.

No person may /transport,/ offer or accept a hazardous material for transportation in commerce unless that person is registered in conformance ... and the hazardous material is properly classed, described, packaged, marked, labeled, and in condition for shipment as required or authorized by ... /the hazardous materials regulations (49 CFR 171-177)./|The International Air Transport Association (IATA) Dangerous Goods Regulations are published by the IATA Dangerous Goods Board pursuant to IATA Resolutions 618 and 619 and constitute a manual of industry carrier regulations to be followed by all IATA Member airlines when transporting hazardous materials.|The International Maritime Dangerous Goods Code lays down basic principles for transporting hazardous chemicals. Detailed recommendations for individual substances and a number of recommendations for good practice are included in the classes dealing with such substances. A general index of technical names has also been compiled. This index should always be consulted when attempting to locate the appropriate procedures to be used when shipping any substance or article.

Permissible Exposure Limit: Table Z-1 8-hr Time Weighted Avg: 0.02 ppm (0.2 mg/cu m), as Te.

Recommended Exposure Limit: 10 Hr Time-Weighted Avg: 0.02 ppm (0.1 mg/cu m).

Releases of CERCLA hazardous substances are subject to the release reporting requirement of CERCLA section 103, codified at 40 CFR part 302, in addition to the requirements of 40 CFR part 355. Tellurium hexafluoride is an extremely hazardous substance (EHS) subject to reporting requirements when stored in amounts in excess of its threshold planning quantity (TPQ) of 100 lbs.

TELLURIUM HEXAFLUORIDE CAUSES RESPIRATORY IRRITATION. IN PERSONS WITH IMPAIRED PULMONARY FUNCTION, ESPECIALLY THOSE WITH OBSTRUCTIVE AIRWAY DISEASES, THE BREATHING OF TELLURIUM HEXAFLUORIDE MIGHT CAUSE EXACERBATION OF SYMPTOMS DUE TO ITS IRRITANT PROPERTIES.

Food and Environmental Agents: Effect on Breast-Feeding: Reported Sign or Symptom in Infant or Effect on Lactation: Fluorides: None. /from Table 7/

... Two postgraduate chemists ... accidentally inhaled tellurium hexafluoride gas when 50 g leaked from a cylinder in their laboratory. ... They were hospitalized for 2 and 3 days, respectively. Apart from the pungent odor of their breaths, their only symptoms were tiredness and a tendency to fall asleep in the late afternoon. One of them showed a unique bluish black pigmentation below the skin surface on the webs of his fingers and to a lesser degree in streaks on his face and neck. These intradermal deposits of tellurium took several weeks to fade. Photographs of this case show very clearly a rare form of true skin absorption, in this instance probably of the volatile tellurium esters.

Capable of causing death or permanent injury. Acute -- the material is highly toxic by inhalation exposure and a strong irritant to skin, eyes, the lungs, the throat, and stomach. Death can occur from filling of the lungs with fluid (pulmonary edema) or from asphyxiation due to spasm of the throat (larynx) or bronchi. Those with impaired pulmonary function, especially obstructive airway diseases are at a greater risk. (EPA, 1998)

Signs and Symptoms of Acute Tellurium Hexafluoride Exposure: Signs and symptoms of acute exposure to tellurium hexafluoride may include drowsiness, malaise, lassitude, weakness, and dizziness. A metallic taste, garlicky breath, and profuse sweating may be noted. Kidney damage, liver injury, and pulmonary effects such as pulmonary edema and bronchial spasms may also occur. Gastrointestinal effects may include nausea, vomiting, anorexia, and constipation. Dermal exposure may result in dermatitis (red, inflamed skin). Emergency Life-Support Procedures: Acute exposure to tellurium hexafluoride may require decontamination and life support for the victims. Emergency personnel should wear protective clothing appropriate to the type and degree of contamination. Air-purifying or supplied-air respiratory equipment should also be worn, as necessary. Rescue vehicles should carry supplies such as plastic sheeting and disposable plastic bags to assist in preventing spread of contamination. Inhalation Exposure: 1. Move victims to fresh air. Emergency personnel should avoid self-exposure to tellurium hexafluoride. 2. Evaluate vital signs including pulse and respiratory rate, and note any trauma. If no pulse is detected, provide CPR. If not breathing, provide artificial respiration. If breathing is labored, administer oxygen or other respiratory support. 3. Obtain authorization and/or further instructions from the local hospital for administration of an antidote or performance of other invasive procedures. 4. Transport to a health care facility. Dermal/Eye Exposure: 1. Remove victims from exposure. Emergency personnel should avoid self- exposure to tellurium hexafluoride. 2. Evaluate vital signs including pulse and respiratory rate, and note any trauma. If no pulse is detected, provide CPR. If not breathing, provide artificial respiration. If breathing is labored, administer oxygen or other respiratory support. 3. Remove contaminated clothing as soon as possible. 4. If eye exposure has occurred, eyes must be flushed with lukewarm water for at least 15 minutes. 5. Wash exposed skin areas THOROUGHLY with soap and water. 6. Obtain authorization and/or further instructions from the local hospital for administration of an antidote or performance of other invasive procedures. 7. Transport to a health care facility. Ingestion Exposure: 1. Evaluate vital signs including pulse and respiratory rate, and note any trauma. If no pulse is detected, provide CPR. If not breathing, provide artificial respiration. If breathing is labored, administer oxygen or other respiratory support. Humidified oxygen is preferred. 2. IMMEDIATELY give the victims milk or water to dilute the hydrofluoric acid: children up to 1 year old, 125 mL (4 oz or 1/2 cup); children 1 to 12 years old, 200 mL (6 oz or 3/4 cup); adults, 250 mL (8 oz or 1 cup). Milk or water should be given only if victims are conscious and alert. 3. DO NOT induce vomiting. 4. Milk of Magnesia should be administered if victims are conscious and alert. Use 2.5 mL (1/2 tsp) for children up to 1 year old, 5 mL (1 tsp) for children 1 to 12 years old, and 10 mL (2 tsp) for adults. Do not exceed 15 mL (3 tsp or 1 tbsp). 5. Obtain authorization and/or further instructions from the local hospital for administration of an antidote or performance of other invasive procedures. 6. Activated charcoal is of no value. 7. Repeat the administration of water or milk to conscious and alert victims. Use quantities listed above (see No. 2). 8. Transport to a health care facility. (EPA, 1998)|(See procedures)

Basic treatment: Establish a patent airway. Suction if necessary. Watch for signs of respiratory insufficiency and assist ventilations if needed. Administer oxygen by nonrebreather mask at 10 to 15 L/min. Monitor for pulmonary edema and treat if necessary ... . Monitor for shock and treat if necessary ... . Anticipate seizures and treat if necessary ... . For eye contamination, flush eyes immediately with water. Irrigate each eye continuously with normal saline during transport ... . Do not use emetics. For ingestion, rinse mouth and administer 5 ml/kg up to 200 ml of water for dilution if the patient can swallow, has a strong gag reflex, and does not drool ... . Cover skin burns with dry sterile dressings after decontamination ... . /Poison A and B/|Advanced treatment: Consider orotracheal or nasotracheal intubation for airway control in the patient who is unconscious, has severe pulmonary edema, or is in respiratory arrest. Positive pressure ventilation techniques with a bag valve mask device may be beneficial. Monitor cardiac rhythm and treat arrhythmias as necessary ... . Start an IV with D5W /SRP: "To keep open", minimal flow rate/. Use lactated Ringer's if signs of hypovolemia are present. Watch for signs of fluid overload. Consider drug therapy for pulmonary edema ... . For hypotension with signs of hypovolemia, administer fluid cautiously. Watch for signs of fluid overload ... . Treat seizures with diazepam (Valium) ... . Use proparacaine hydrochloride to assist eye irrigation ... . /Poison A and B/

Two cases of excessive occupational exposure to tellurium hexafluoride were reported. Because both workers were also handling volatile liquid esters, some increased absorption & deposition of elemental tellurium in the skin may have occurred. The signs included garlic breath. An unusual feature was bluish black discoloration of the webs of the fingers & streaks on the face & neck. No permanent damage was noted ... .|Tellurium hexafluoride is also a respiratory irritant & has caused delayed pulmonary edema, anorexia, & somnolence. Victims of tellurium hexafluoride intoxication have been reported to have a bluish discoloration in the webs of the fingers.|Human exposure to /tellurium hexafluoride/ has caused headache, chest pain, & dyspnea.|Tellurium hexafluoride has caused headache, chest pain, and dyspnea. It is considered toxic by inhalation and may produce pulmonary edema and death.

inhalation

headache; dyspnea (breathing difficulty); garlic breath; In Animals: pulmonary edema

respiratory system

Tellurium fluoride (TeF6), (OC-6-11)-: ACTIVE