Silicon metal
SIAL/NIST57B - NIST® SRM® 57b
Synonym: Silicon
CAS Number: 7440-21-3
Empirical Formula (Hill Notation): Si
Molecular Weight: 28.09
EC Number: 231-130-8
MDL Number: MFCD00085311
Linear Formula: Si
Product Type: Chemical
| application(s) | industrial qc |
| bp | 2355 °C (lit.) |
| density | 2.33 g/mL at 25 °C (lit.) |
| format | matrix material |
| grade | certified reference material |
| greener alternative category | Enabling  |
| greener alternative product characteristics | Design for Energy Efficiency Learn more about the Principles of Green Chemistry . |
| InChI | 1S/Si |
| InChI key | XUIMIQQOPSSXEZ-UHFFFAOYSA |
| manufacturer/tradename | NIST® |
| mp | 1410 °C (lit.) |
| packaging | pkg of 40 g |
| Quality Level | 100 |
| SMILES string | [Si] |
| sustainability | Greener Alternative Product |
| Application: | Silicon metal standard reference material (SRM) is intended for use in the evaluation of instrumental and chemical methods of analysis. |
| Features and Benefits: | • Accompanied with certificate documenting NIST-certified values, expanded uncertainties, and expansion factor(k) for elements in SRM 57b. • Reference and information values are reported as mass fraction value for each element in silicon metal. • The certified values are metrologically traceable to the SI unit of mass, expressed as milligrams per kilogram. • The NIST certificate is provided with expiration certificate, storage, handling,use, and maintenance instructions. |
| General description: | Each unit of SRM 57b contains a bottle consisting of approximately 40 grams of fine powder. SRM 57B_cert  SRM 57B_SDS |
| General description: | We are committed to bringing you Greener Alternative Products, which belongs to one of the four categories of greener alternatives. This enabling product has been enhanced for energy efficiency. Click here for more information. |
| Legal Information: | NIST is a registered trademark of National Institute of Standards and Technology |
| Legal Information: | SRM is a registered trademark of National Institute of Standards and Technology |
| Other Notes: | Certified for the analytes listed below. Aluminum (Al), Boron (B), Phosphorus (P), Titanium (Ti), Manganese (Mn), Iron (Fe), Nickel (Ni), Zirconium (Zr) Reference/Informational value is provided for the following analytes. Calcium (Ca), Cobalt (Co), Chromium (Cr), Copper (Cu), Vanadium (V), Hydrogen (H), Carbon (C), Oxygen (O), Sulfur (S) See certificate for values and more details at nist.gov/SRM. |
| Symbol |  GHS02 |
| Signal word | Warning |
| Hazard statements | H228 |
| Precautionary statements | P210 - P240 - P241 - P280 - P370 + P378 |
| RIDADR | UN1346 - class 4.1 - PG 3 - Silicon powder, amorphous |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| bp | 2355 °C (lit.) |
| mp | 1410 °C (lit.) |
| Density | 2.33 g/mL at 25 °C (lit.) |
| UNSPSC | 41116107 |