Gallium

69.72

68.926

231-163-8

CH46OC8YV4

2803

DTXSID8064696

C66798

Grayish metal, possesses a greenish-blue reflection or silver-like when molten; has a crystalline ortho-rhombic texture

81129290

0

-0.04330

Silvery or grayish metallic Solid and/or Liquid

5.91 g/cm³ @ Temp: 20 °C

29.78 °C

2400 °C (approx)

Sol in acid, alkali; slightly sol in mercury

0-6°C

1 Pa @ 1037 deg C; 10 Pa @ 1175 deg C; 100 Pa @ 1347 deg C...

Combustible hydrogen produced when meeting alkali

Potentially explosive reaction with hydrogen peroxide + hydrochloric acid.

Reacts with most metals at high temperatures|Heat capacity: 0.09 cal/g °C (0-24 °C, solid); latent heat of fusion: 19.16 cal/g; stable in dry air; tarnishes with moist air or oxygen; reacts with alkalies with the evolution of hydrogen; attacked by cold conc hydrochloric acid; rendered passive by hot nitric acid; readily attacked by halogens

Stable in dry air, in moist air it tarnishes

Metals, Elemental and Powder, Active

Strong Reducing Agent

Metals, such as GALLIUM METAL, are reducing agents and tend to react with oxidizing agents (i.e. hydrogen peroxide). Their reactivity is strongly influenced by their state of subdivision: in bulk they often resist chemical combination; in powdered form they may react more rapidly. Reacts violently with chlorine and other halogens at ambient temperatures [Bretherick, 5th Ed., 1995].

At a temperature of 500-100 °C or more, gallium is very corrosive to most metals.

254 kJ/mol @ approx 2400 °C

III

8

UN 3264 8/PG 3

3

36/38-34-23/24/25

26-45-36/37/39-36-28-27

LW8600000

C,Xi,T

Warehouse ventilated, low temperature and dry

Stable, but moisture sensitive. Incompatible with strong acids, strong bases, halogens, strong oxidizing agents.

P234, P260, P264, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P363, P390, P404, P405, P501

H290

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.

Potentially explosive reaction with hydrogen peroxide + hydrochloric acid. Violent or vigorous reaction with halogens. Forms an amalgam with aluminum alloys.

Excerpt from ERG Guide 172 [Gallium and Mercury]: Non-combustible, substance itself does not burn but may react upon heating to produce corrosive and/or toxic fumes. Runoff may pollute waterways. (ERG, 2016)

|Danger|H290 (29.71%): May be corrosive to metals [Warning Corrosive to Metals]|P234, P260, P264, P270, P273, P280, P301+P312, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P330, P363, P390, P404, P405, and P501|Aggregated GHS information provided by 349 companies from 14 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Excerpt from ERG Guide 172 [Gallium and Mercury]: As an immediate precautionary measure, isolate spill or leak area for at least 50 meters (150 feet) in all directions. LARGE SPILL: Consider initial downwind evacuation for at least 100 meters (330 feet). FIRE: When any large container is involved in a fire, consider initial evacuation for 500 meters (1/3 mile) in all directions. (ERG, 2016)

Excerpt from ERG Guide 172 [Gallium and Mercury]: Do not touch or walk through spilled material. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Prevent entry into waterways, sewers, basements or confined areas. Do not use steel or aluminum tools or equipment. Cover with earth, sand or other non-combustible material followed with plastic sheet to minimize spreading or contact with rain. For mercury, use a mercury spill kit. Mercury spill areas may be subsequently treated with calcium sulphide/calcium sulfide or with sodium thiosulphate/sodium thiosulfate wash to neutralize any residual mercury. (ERG, 2016)

Excerpt from ERG Guide 172 [Gallium and Mercury]: Wear positive pressure self-contained breathing apparatus (SCBA). Structural firefighters' protective clothing will only provide limited protection. (ERG, 2016)|Personnel protection: Wear appropriate chemical protective gloves, boots and goggles. ... /Gallium metal, solid/

Potentially explosive reaction with hydrogen peroxide + hydrochloric acid.

If material involved in fire: Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.) Use water in flooding quantities as fog. Cool all affected containers with flooding quantities of water. Apply water from as far a distance as possible. /Gallium metal, solid/

If material not involved in fire: Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Attempt to stop leak if without undue personnel hazard. /Gallium metal, solid/|Personnel protection: ... Do not handle broken packages unless wearing appropriate personal protective equipment. Avoid breathing vapors. Wear positive pressure self-contained breathing apparatus when fighting fires involving this material. /Gallium metal, solid/

Probably an eye, skin, & mucous membrane irritant.

Gallium goes to the bone in less than 4 hr, where it is retained for longer than 3 months. Excretion of gallium is by the urine; more than 85% of a near toxic dose is thus eliminated.

Excerpt from ERG Guide 172 [Gallium and Mercury]: Inhalation of vapors or contact with substance will result in contamination and potential harmful effects. Fire will produce irritating, corrosive and/or toxic gases. (ERG, 2016)|Corrosives

Excerpt from ERG Guide 172 [Gallium and Mercury]: Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves. Move victim to fresh air. Call 911 or emergency medical service. Give artificial respiration if victim is not breathing. Administer oxygen if breathing is difficult. Remove and isolate contaminated clothing and shoes. In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes. Keep victim calm and warm. (ERG, 2016)

/SRP:/ 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/|/SRP:/ 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/

It has a metallic taste, causes dermatitis & depression of bone marrow function.

Gallium

Ultrapure (99.9999%)|Up to 99.9999% purity

All other basic inorganic chemical manufacturing|Gallium: ACTIVE

Health Hazards -> Corrosives