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Tetrabromophthalic anhydride

Tetrabromophthalic anhydride structure

Tetrabromophthalic anhydride 

structure
  • CAS No:

    632-79-1

  • Formula:

    C8Br4O3

  • Chemical Name:

    Tetrabromophthalic anhydride

  • Synonyms:

    1,3-Isobenzofurandione,4,5,6,7-tetrabromo-;Phthalic anhydride,tetrabromo-;4,5,6,7-Tetrabromo-1,3-isobenzofurandione;Bromphthal;Tetrabromophthalic anhydride;3,4,5,6-Tetrabromophthalic anhydride;FireMaster PHT 4;FG 4000;Saytex RB 49;Tetrabromophthalic acid anhydride;PHT 4;NSC 4874;4,5,6,7-Tetrabromoisobenzofuran-1,3-dione;Tertrabromophthalic anhydride;RB 49;72625-95-7

  • Categories:

    Organic Chemistry  >  Carboxylic Acids and Derivatives

Description

white to light yellow powder


Tetrabromophthalic anhydride is a pale yellow crystalline solid. (NTP, 1992)|DryPowder


Tetrabromophthalic anhydride is a pale yellow crystalline solid. (NTP, 1992)

Tetrabromophthalic anhydride Basic Attributes

463.70000

463.70

211-185-4

Q8E543QKMK

4874

DTXSID6026084

NEEDLES FROM ACETIC ACID-XYLENE|Pale yellow crystalline solid

29173911

Characteristics

43.37000

4.04720

Tetrabromophthalic anhydride is a pale yellow crystalline solid. (NTP, 1992)

2.771 g/cm3

279.5-280.5 °C

540.5ºC at 760 mmHg

280.7ºC

1.725

hydrolysis;Insoluble in alcohol. Slightly soluble in ketone, chlorinated and aromatic solvents.

Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Store protect

0.11 mm Hg ( 180 °C)

LD50 orally in Rabbit: > 10000 mg/kg LD50 dermal Rabbit > 10000 mg/kg

68% bromine content; specific gravity=2.87; MP=270 °C /commercial product/

Insoluble in water. Sensitive to moisture (NTP, 1992).

Anhydrides

TETRABROMOPHTHALIC ANHYDRIDE reacts exothermically with water. This reaction is expected to be slow, but can become vigorous if local heating accelerates it. Reaction with water is accelerated by acids. Incompatible with acids, strong oxidizing agents, alcohols, amines, and bases.

Safety Information

NONH for all modes of transport

2

R36/37/38

S24/25

TI3350000

Xi

Stable at room temperature in closed containers under normal storage and handling conditions.

P280

H317

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.

Flash point data for this compound are not available. It is probably combustible. (NTP, 1992)

|Warning|H317 (94.25%): May cause an allergic skin reaction [Warning Sensitization, Skin]|P261, P272, P280, P302+P352, P321, P333+P313, P363, and P501|Aggregated GHS information provided by 528 companies from 5 notifications to the ECHA C&L Inventory.

Fires involving this material should be controlled using a dry chemical carbon dioxide or Halon extinguisher. (NTP, 1992)

SMALL SPILLS AND LEAKAGE: You should dampen the solid spill material with acetone, then transfer the dampened material to a suitable container. Use absorbent paper dampened with acetone to pick up any remaining material. Seal your contaminated clothing and the adsorbent paper in a vapor-tight plastic bag for eventual disposal. Solvent wash all contaminated surfaces with acetone followed by washing with a strong soap and water solution. Do not reenter the contaminate 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 protect it from 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)

Drug Information

SYMPTOMS: Symptoms of exposure to this compound may include coughing, sneezing, respiratory system irritation, dermatitis and eye irritation. ACUTE/CHRONIC HAZARDS: This compound is an irritant. (NTP, 1992)

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)

tetrabromophthalic anhydride

Tetrabromophthalic anhydride Use and Manufacturing

Methods of Manufacturing

3,4,5,6-Tetrabromophthalic anhydride can be prepared by reacting phthalic anhydride and bromine in a mixture of concentrated sulfuric acid and 70% hydrogen peroxide in the presence of catalytic amounts of iodine or in chlorosulfonic acid containing a small amount of sulfur.

Uses

Tetrabromophthalic Anhydride is a brominated flame retardant used as additives in plastics to decrease the rate of combustion of these materials, leading to greater consumer safety.


Adhesives and sealant chemicals


Building/construction materials not covered elsewhere

Production

10,000,000 - 50,000,000 lb|(1979) PROBABLY GREATER THAN 2.27X10+6 GRAMS|(1981) PROBABLY GREATER THAN 6.81X10+6 GRAMS

ESSENTIALLY 100% AS A REACTIVE FLAME RETARDANT

All other basic organic chemical manufacturing|1,3-Isobenzofurandione, 4,5,6,7-tetrabromo-: ACTIVE

Computed Properties

Molecular Weight:463.70
XLogP3:4.1
Hydrogen Bond Acceptor Count:3
Exact Mass:463.65400
Monoisotopic Mass:459.65809
Topological Polar Surface Area:43.4
Heavy Atom Count:15
Complexity:291
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

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