bis(trimethylsilyl)azanide,lanthanum(3+)

Modify Date: 2025-08-25 20:10:28

bis(trimethylsilyl)azanide,lanthanum(3+) Structure
bis(trimethylsilyl)azanide,lanthanum(3+) structure
Common Name bis(trimethylsilyl)azanide,lanthanum(3+)
CAS Number 175923-07-6 Molecular Weight 620.060
Density N/A Boiling Point 126ºC at 760mmHg
Molecular Formula C18H54LaN3Si6 Melting Point 149-153ºC(lit.)
MSDS Chinese USA Flash Point 36
Symbol GHS02 GHS05
GHS02, GHS05
Signal Word Danger

 Names

Name bis(trimethylsilyl)azanide,lanthanum(3+)
Synonym More Synonyms

 Chemical & Physical Properties

Boiling Point 126ºC at 760mmHg
Melting Point 149-153ºC(lit.)
Molecular Formula C18H54LaN3Si6
Molecular Weight 620.060
Flash Point 36
Exact Mass 619.199707
LogP 9.08970
Vapour Pressure 11.9mmHg at 25°C

 MSDS


Section 1: Product Identification
Chemical Name:Tris(N,N-bis(trimethylsilyl)amide)lanthanum(III), min. 98% (99.9%-La) (REO)
CAS Registry Number:175923-07-6
Formula:C18H54LaN3Si6
EINECS Number:none
Chemical Family:organometallic complex
Synonym:Lanthanum tris[bis(trimethylsilyl)amide]

Section 2: Composition and Information on Ingredients
IngredientCAS NumberPercentACGIH (TWA)OSHA (PEL)
Title compound175923-07-6100%no datano data

Section 3: Hazards Identification
Emergency Overview:Irritating to skin, eyes and respiratory tract.
Primary Routes of Exposure:Inhalation, skin, eyes
Eye Contact:Causes slight to mild irritation of the eyes.
Skin Contact:Causes slight to mild irritation of the skin.
Inhalation:Irritating to the nose, mucous membranes and respiratory tract.
Ingestion:No information available on the physiological effects of ingestion. May be harmful if swallowed.
Acute Health Affects:Irritating to skin, eyes and respiratory tract.
Chronic Health Affects:No information on long-term chronic effects.
NTP:No
IARC:No
OSHA:No

SECTION 4: First Aid Measures
Immediately flush the eyes with copious amounts of water for at least 10-15 minutes. A victim may need
Eye Exposure:
assistance in keeping their eye lids open. Get immediate medical attention.
Wash the affected area with water. Remove contaminated clothes if necessary. Seek medical assistance if
Skin Exposure:
irritation persists.
Remove the victim to fresh air. Closely monitor the victim for signs of respiratory problems, such as difficulty
Inhalation:
in breathing, coughing, wheezing, or pain. In such cases seek immediate medical assistance.
Seek medical attention immediately. Keep the victim calm. Give the victim water (only if conscious). Induce
Ingestion:
vomiting only if directed by medical personnel.

SECTION 5: Fire Fighting Measures
Flash Point:no data
Autoignition Temperature:no data
Explosion Limits:no data
Extinguishing Medium:carbon dioxide, dry powder or foam
If this product is involved in a fire, fire fighters should be equipped with a NIOSH approved positive pressure
Special Fire Fighting Procedures:
self-contained breathing apparatus and full protective clothing.
Hazardous Combustion andIf involved in a fire this material may emit toxic organic fumes.
Decomposion Products:
Unusual Fire or Explosion Hazards: No unusual fire or explosion hazards.

SECTION 6: Accidental Release Measures
Spill and Leak Procedures:Small spills can be mixed with vermiculite or sodium carbonate and swept up.

SECTION 7: Handling and Storage
Handling and Storage:Store cold, in a tightly sealed container under an inert atmosphere of nitrogen or argon.

SECTION 8: Exposure Controls and Personal Protection
Eye Protection:Always wear approved safety glasses when handling a chemical substance in the laboratory.
Skin Protection:Wear protective clothing and gloves.
Ventilation:Handle the material in an efficient fume hood.
If ventilation is not available a respirator should be worn. The use of respirators requires a Respirator
Respirator:
Protection Program to be in compliance with 29 CFR 1910.134.
Ventilation:Handle the material in an efficient fume hood.
Additional Protection:No additional protection required.

SECTION 9: Physical and Chemical Properties
Color and Form:white powder
Molecular Weight:620.06
Melting Point:no data
Boiling Point:no data
Vapor Pressure:no data
Specific Gravity:no data
Odor:weak ammonia odor
Solubility in Water:insoluble

SECTION 10: Stability and Reactivity
Stability:air sensitive, moisture sensitive (store cold)
Hazardous Polymerization:no hazardous polymerization
Conditions to Avoid:air and moisture
Incompatibility:oxidizing agents and halogens
Decomposition Products:carbon monoxide, carbon dioxide, lanthanum oxide and organic fumes.

SECTION 11: Toxicological Information
RTECS Data:No information available in the RTECS files.
Carcinogenic Effects:no data
Mutagenic Effects:no data
Tetratogenic Effects:no data

SECTION 12: Ecological Information
Ecological Information:No information available

SECTION 13: Disposal Considerations
Disposal:Dispose of according to local, state and federal regulations.

SECTION 14: Transportation
Shipping Name (CFR):Non-hazardous
Hazard Class (CFR):NA
Additional Hazard Class (CFR):NA
Packaging Group (CFR):NA
UN ID Number (CFR):NA
Shipping Name (IATA):Non-hazardous
Hazard Class (IATA):NA
Additional Hazard Class (IATA):NA
Packaging Group (IATA):NA
UN ID Number (IATA):NA

SECTION 15: Regulatory Information
TSCA:Not listed in the TSCA inventory
SARA (Title 313):Title compound not listed
Second Ingredient:none


SECTION 16 - ADDITIONAL INFORMATION
N/A

 Safety Information

Symbol GHS02 GHS05
GHS02, GHS05
Signal Word Danger
Hazard Statements H228-H261-H314
Supplemental HS Reacts violently with water.
Precautionary Statements P210-P231 + P232-P280-P305 + P351 + P338-P310-P422
Personal Protective Equipment Eyeshields;Faceshields;full-face particle respirator type N100 (US);Gloves;respirator cartridge type N100 (US);type P1 (EN143) respirator filter;type P3 (EN 143) respirator cartridges
Hazard Codes F,C
Risk Phrases R11
Safety Phrases S16
RIDADR UN 3396 4.3/PG 2
Packaging Group II
Hazard Class 4.1

 Synonyms

Lanthanum tris(1,1,1,3,3,3-hexamethyldisilazan-2-ide)
MFCD00271009
Silanamine, 1,1,1-trimethyl-N-(trimethylsilyl)-, lanthanum salt (3:1)
Tris[N,N-bis(trimethylsilyl)amide]lanthanum(III)
Lanthanum bis(trimethylsilyl)amide Lanthanum tris(bis(trimethylsilyl)amide)
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