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Hexamethyldisilazane

  • Hexamethyldisilazane

Hexamethyldisilazane

Common Name Hexamethyldisilazane
CAS Number 999-97-3
Molecular Weight 161.393
Density 0.8±0.1 g/cm3 Boiling Point 126.0±9.0 °C at 760 mmHg
Molecular Formula C6H19NSi2 Melting Point -78 °C
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Product Introduction

Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Namehexamethyldisilazane
SynonymMore Synonyms

Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density0.8±0.1 g/cm3
Boiling Point126.0±9.0 °C at 760 mmHg
Melting Point-78 °C
Molecular FormulaC6H19NSi2
Molecular Weight161.393
Flash Point30.0±18.7 °C
Exact Mass161.105606
PSA12.03000
LogP2.32
Vapour Pressure11.9±0.2 mmHg at 25°C
Index of Refraction1.404
InChIKeyFFUAGWLWBBFQJT-UHFFFAOYSA-N
SMILESC[Si](C)(C)N[Si](C)(C)C
Water SolubilityREACTS

MSDS

This table provides MSDS information including hazard classification, first‑aid, fire‑fighting, spill handling, operation and storage instructions.

Hexamethyldisilazane MSDS(Chinese)

Toxicological Information

This table summarizes toxicological test data, acute & chronic toxicity and ecological hazard parameters for this chemical.

CHEMICAL IDENTIFICATION

  • RTECS NUMBER :
  • JM9230000
  • CHEMICAL NAME :
  • Disilazane, 1,1,1,3,3,3-hexamethyl-
  • CAS REGISTRY NUMBER :
  • 999-97-3
  • LAST UPDATED :
  • 199710
  • DATA ITEMS CITED :
  • 17
  • MOLECULAR FORMULA :
  • C6-H19-N-Si2
  • MOLECULAR WEIGHT :
  • 161.44
  • WISWESSER LINE NOTATION :
  • 1-SI-1&1&M-SI-1&1&1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

  • TYPE OF TEST :
  • Standard Draize test
  • ROUTE OF EXPOSURE :
  • Administration onto the skin
  • SPECIES OBSERVED :
  • Rodent - rabbit
  • REFERENCE :
  • NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: OTS0533941 ** ACUTE TOXICITY DATA **
  • TYPE OF TEST :
  • LD50 - Lethal dose, 50 percent kill
  • ROUTE OF EXPOSURE :
  • Oral
  • SPECIES OBSERVED :
  • Rodent - rat
  • DOSE/DURATION :
  • 850 mg/kg
  • TOXIC EFFECTS :
  • Behavioral - general anesthetic Cardiac - pulse rate Lungs, Thorax, or Respiration - respiratory depression
  • REFERENCE :
  • GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 30(5),52,1986
  • TYPE OF TEST :
  • LC50 - Lethal concentration, 50 percent kill
  • ROUTE OF EXPOSURE :
  • Inhalation
  • SPECIES OBSERVED :
  • Rodent - rat
  • DOSE/DURATION :
  • 8700 mg/m3/4H
  • TOXIC EFFECTS :
  • Behavioral - general anesthetic Cardiac - pulse rate Lungs, Thorax, or Respiration - respiratory depression
  • REFERENCE :
  • GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 30(5),52,1986
  • TYPE OF TEST :
  • LD50 - Lethal dose, 50 percent kill
  • ROUTE OF EXPOSURE :
  • Intraperitoneal
  • SPECIES OBSERVED :
  • Rodent - rat
  • DOSE/DURATION :
  • 800 mg/kg
  • TOXIC EFFECTS :
  • Behavioral - tremor Behavioral - muscle weakness Skin and Appendages - hair
  • REFERENCE :
  • NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: OTS0537734
  • TYPE OF TEST :
  • LD50 - Lethal dose, 50 percent kill
  • ROUTE OF EXPOSURE :
  • Oral
  • SPECIES OBSERVED :
  • Rodent - mouse
  • DOSE/DURATION :
  • 850 mg/kg
  • TOXIC EFFECTS :
  • Behavioral - general anesthetic Cardiac - pulse rate Lungs, Thorax, or Respiration - respiratory depression
  • REFERENCE :
  • GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 30(5),52,1986
  • TYPE OF TEST :
  • LC50 - Lethal concentration, 50 percent kill
  • ROUTE OF EXPOSURE :
  • Inhalation
  • SPECIES OBSERVED :
  • Rodent - mouse
  • DOSE/DURATION :
  • 12 gm/m3/2H
  • TOXIC EFFECTS :
  • Behavioral - general anesthetic Cardiac - pulse rate Lungs, Thorax, or Respiration - respiratory depression


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