HEPTAMETHYLDISILAZANE
N,1,1,1-Tetramethyl-N-(trimethylsilyl)silylamine; N,N-Bis(trimethylsilyl)methylamine;

HEPTAMETHYLDISILAZANE
 

PRODUCT IDENTIFICATION

CAS RN

 920-68-3

EINECS RN

 213-061-5

FORMULA

 (CH3)3SiN(CH3)Si(CH3)3

MASS

 175.42

 

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE

clear liquid

MELTING POINT

  

BOILING POINT

 150 C

DENSITY

 0.797

SOLUBILITY IN WATER

Decomposes in water

pH

 

VAPOR DENSITY

 

REFRACTIVE INDEX

 1.4200 - 1.4220 (20 C, 589 nm)

FLASH POINT

27 C

 
STABILITY AND REACTIVITY
STABILITY Stable under normal temperatures and pressures

INCOMPATIBLE MATERIALS

 Oxidizing agents
DECOMPOSITION PRODUCTS Nitrogen oxides, carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, oxides of silicon.
POLYMERIZATION

Will not occur

NFPA RATINGS

 

 

SAFETY

HAZARD NOTES

 Flammable. Irritating to eyes, respiratory system and skin

EYE

 Causes eye irritation. May cause chemical conjunctivitis and corneal damage

SKIN

 Causes skin irritation. May cause cyanosis of the extremities

INGESTION

 May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May cause cardiac disturbances. May cause methemoglobinemia, cyanosis (bluish discoloration of skin due to deficient oxygenation of the blood), convulsions, and death. Ingestion of large amounts may cause CNS depression

INHALATION

 Causes respiratory tract irritation. May cause methemoglobinemia, cyanosis (bluish discoloration of skin due to deficient oxygenation of the blood), convulsions, tachycardia, dyspnea (labored breathing), and death. Aspiration may lead to pulmonary edema. Vapors may cause dizziness or suffocation. May cause cardiac abnormalities. Can produce delayed pulmonary edema. Inhalation at high concentrations may cause CNS depression and asphixiation. May cause burning sensation in the chest.

CHRONIC

 May cause methemoglobinemia, which is characterized by chocolate-brown colored blood, headache, weakness, dizziness, breath shortness, cyanosis (bluish skin due to deficient oxygenation of blood), rapid heart rate, unconsciousness and possible death. Effects may be delayed.

 

TRANSPORT & REGULATORY INFORMATION

UN NO.

 1993
HAZARD CLASS

3
PACKING GROUP

III

HAZARD SYMBOL

C

RISK PHRASES

10-34

SAFETY PHRASES

16-26-36/37/39-45

 

OTHER INFORMATION
Silazane

CAS RN.

1,1,3,3-Tetramethyl-1,3-diphenyldisilazane

3449-26-1

1,1,3,3-Tetramethyldisilazane

15933-59-2
1,3-Dibutyl-1,1,3,3-tetramethyldisilazane 82356-80-7

1,3-Diethyl-1,1,3,3-tetramethyldisilazane

17882-94-9

1,3-Dimethyl-1,1,3,3-tetraphenyldisilazane

7453-26-1
1,3-Dipropyl-1,1,3,3-tetramethyldisilazane 14579-90-9

2,2,4,4,6,6-Hexamethylcyclotrisilazane

1009-93-4
2,4,6,8-Tetramethyl-2,4,6,8-tetravinylcyclotetrasilazane 5162-63-0

2,4,6-Trimethyl-2,4,6-trivinylcyclotrisilazane

5505-72-6
Hexaphenylcyclodisilazane 3284-07-9
Dimethylcyclosilazanes 68952-89-6
Methyl hydrogen methylvinylcyclosilazanes 503590-70-3
Octamethylcyclotetrasilazane 2587-47-5
Hexamethylcyclotrisilazane 2587-46-4
Hexaethylcyclotrisilazane 15458-87-4

Heptamethyldisilazane

920-68-3

Hexamethyldisilazane

999-97-3
Lithium bis(trimethylsilyl)amide 4039-32-1
Nonamethylstannasilazane 996-37-2
Octamethylcyclotetrasilazane 1020-84-4
Bis(chloromethyl)tetramethyldisilazane 14579-91-0
N-Sodiohexamethyldisilazane 1070-89-9
Nonamethyltrisilazane 1586-73-8
1,3-Divinyltetramethyldisilazane 7691-02-3
1,1,3,3-Tetramethyl-1,3-bis(3,3,3-trifluoropropyl)disilazane 39482-87-6
1,5-Dichloro-1,1-diphenyl-3,3,5,5-tetramethyltrisilazane 64426-36-4
1,5-Dichloro-1-ethenyl-1,3,3,5,5-pentamethyltrisilazane 64426-38-6
Silazanes 176948-80-4

 

SALES SPECIFICATION

APPEARANCE

clear liquid

ASSAY

98.0% min

 

PRICE