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If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf
283134
Hexamethyldisilathiane
synthesis grade
Synonym(s):
(TMS)2S, HMDS, Bis(trimethylsilyl) sulfide, NSC 252160
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About This Item
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form
liquid
Quality Level
quality
synthesis grade
refractive index
n20/D 1.4586 (lit.)
bp
164 °C (lit.)
density
0.846 g/mL at 25 °C (lit.)
SMILES string
C[Si](C)(C)S[Si](C)(C)C
InChI
1S/C6H18SSi2/c1-8(2,3)7-9(4,5)6/h1-6H3
InChI key
RLECCBFNWDXKPK-UHFFFAOYSA-N
Related Categories
1 of 4
This Item | |||
|---|---|---|---|
| Quality Level 200 | Quality Level 200 | Quality Level 300 | Quality Level 100 |
| density 0.846 g/mL at 25 °C (lit.) | density 0.848 g/mL at 25 °C (lit.) | density - | density - |
| bp 164 °C (lit.) | bp 110-114 °C (lit.) | bp 125 °C (lit.) | bp - |
| refractive index n20/D 1.4586 (lit.) | refractive index n20/D 1.451 (lit.) | refractive index n20/D 1.407 (lit.) | refractive index - |
| form liquid | form liquid | form liquid | form - |
| quality synthesis grade | quality - | quality - | quality - |
Application
It may also be used as a sulfur source in the following conversion:
- Amides and lactams to their corresponding sulfur analogs.
- Allyl alcohols to diallyl sulfides.
- Transition metal halides to metal sulfides.
- Aryl iodides to diaryl sulfides.
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Flam. Liq. 3
Storage Class
3 - Flammable liquids
wgk
WGK 3
flash_point_f
73.4 °F - closed cup
flash_point_c
23 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
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How is shipping temperature determined? And how is it related to the product storage temperature?
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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