Silicon, wafer (single side polished), <111>, N-type, contains no dopant – Sigma-Aldrich
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Sigma-Aldrich
Synonyms
Silicon element
Cas No.
7440-21-3
General Description
0 vortex defects. Etch pitch density (EPD) < 100 (cm-2). Resistivity >1,000 Ω•cm
Oxygen content: ≤ 1~1.8 x 1018 /cm3; Carbon content: ≤ 5 x 1016 /cm3; Boule diameter: 1~8 ″
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Silicon, wafer (single side polished), <111>, N-type, contains phosphorus as dopant – Sigma-Aldrich
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Sigma-Aldrich
Synonyms
Silicon element
Cas No.
7440-21-3
General Description
0 vortex defects. Etch pitch density (EPD) < 100 (cm-2). Resistivity 10-3 – 40 Ωcm
Oxygen content: <= 1~1.8 x 1018 /cm3; Carbon content: <= 5 x 1016 /cm3; Boule diameter: 1~8 ″
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Silicon, wafer, <111>, P-type – Sigma-Aldrich
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Sigma-Aldrich
Synonyms
Silicon element
Cas No.
7440-21-3
General Description
0 vortex defects. Etch pitch density (EPD) < 100 (cm-2). Resistivity 10-3 – 40 Ωcm
Oxygen content: <= 1~1.8 x 1018 /cm3; Carbon content: <= 5 x 1016 /cm3; Boule diameter: 1~8 ″
We are committed to bringing you Greener Alternative Products, which belong to one of the four categories of greener alternatives. This enabling product has been enhanced for energy efficiency. Click here for more information.

Silver Nitrate for Analysis EMSURE® ACS,ISO,Reag. Ph Eur (Merck)
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Merck
Description
CAS Number: 7761-88-8
Chemical Formula: AgNO₃
Molecular Weight: 169.87 g/mol
Quality Level: MQ300

Silver Nitrate for analysis EMSURE® ACS,ISO,Reag. Ph Eur (Merck)
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Merck
CAS no.: 7761-88-8
Grade: For analysis EMSURE® ACS,ISO,Reag. Ph Eur
Chemical Formula: AgNO₃
Synonym: –
Quality level: MQ300
Product specification and SDS for Silver Nitrate for analysis EMSURE®.

Simmons Citrate Agar 500g
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Thermo ScientificTM OxoidTM
Simmons Citrate Agar (Dehydrated), Oxoid Composition
Typical Formula* | gm/litre |
Magnesium sulphate | 0.2 |
Ammonium dihydrogen phosphate | 0.2 |
Sodium ammonium phosphate | 0.8 |
Sodium citrate, tribasic | 2.0 |
Sodium chloride | 5.0 |
Bromothymol blue | 0.08 |
Agar | 15.0 |
pH 7.0 ± 0.2 @ 25°C |
Simmons Citrate Agar (Dehydrated), Oxoid Preparation:
Suspend 23g in 1 litre of distilled water. Bring to the boil to dissolve completely. Sterilise by autoclaving at 121°C for 15 minutes.
Storage conditions and Shelf life
Store the dehydrated medium at 10-30°C and use before the expiry date on the label.
Store the prepared medium at 2-8°C.
Precautions
It is important not to carry over any nutrients into the citrate medium because this will result in false positive tests. Dilute the inoculum in saline before inoculating the citrate medium to avoid a carry-over of other carbon sources.

Single Disc Ejectors
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Thermo ScientificTM OxoidTM
**This product is not available at the moment.
Accurately place antimicrobial susceptibility disks onto your media of choice when carrying out manual Antimicrobial Susceptibility Testing methods using a self-tamping Thermo Scientific™ Oxoid™ Antimicrobial Susceptibility Individual Disk Dispenser.

Skim Milk Powder 500g
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Thermo ScientificTM OxoidTM
Oxoid Skim Milk Powder is a thermophile-free, spray dried powder for inclusion in bacteriological culture media.

Slanetz And Bartley Medium 500g
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Thermo ScientificTM OxoidTM
Detect and enumerate enterococci from water and food samples with Thermo Scientific™ Slanetz and Bartley Medium (Dehydrated). Slanetz and Bartley originally devised this medium to detect and enumerate enterococci by the technique of membrane filtration, but it has also proved useful as a direct plating medium. The medium is very selective for enterococci and, when it is incubated at elevated temperatures (44-45°C), all red or maroon colonies may be accepted as presumptive enterococci.
Slanetz and Bartley Medium (Dehydrated), Oxoid Composition
Typical Formula* | gm/litre |
Tryptose | 20.0 |
Yeast extract | 5.0 |
Glucose | 2.0 |
Di-potassium hydrogen phosphate | 4.0 |
Sodium azide | 0.4 |
Tetrazolium chloride | 0.1 |
Agar | 10.0 |
pH 7.2 ± 0.2 @ 25°C |
Slanetz and Bartley Medium Preparation:
Suspend 42g in 1 litre of distilled water and bring to the boil to dissolve the agar completely.
EXCESSIVE HEATING MUST BE AVOIDED. Dispense into Petri dishes and allow to solidify. It should not be remelted. The medium may be used with membrane filters or by spreading dilutions of the sample over the surface of the agar with a glass rod.
Storage conditions and Shelf life
Store the dehydrated medium at 10-30°C and use before the expiry date on the label.
Store the prepared medium at 2-8°C away from light.
Precautions
Count all red, maroon or pink colonies as presumptive enterococci. Not all species reduce TTC therefore pale colonies should not be ignored.
Although incubation at 35°C yields a higher count, it allows the growth of organisms which do not conform to the definition of enterococci. Incubation at 44-45°C has a selective effect and produces fewer false-positives. However, the preliminary incubation at 35°C encourages the recovery of stressed organisms.
Although the selective properties of this medium are very good it is advisable to regard the colony count as a presumptive or unconfirmed count. Further identification may be required depending on the scope of the examination.
Slot Blotters
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Cleaver Scientific
Four different sample number size and style of Hybridisation Manifold are offered; two types of Dot Blotter and two types of Slot Blotter. Typical applications include clone screening with DNA/RNA probes in Southern/Northern blots and immunological screening with antibodies in Western blots. The units incorporate precision lapped surfaces to ensure uniform blotting membrane contact and a leak proof gasket. These prevent lateral transfer of samples and smudging by ensuring that a complete vacuum is formed. Six thumbscrews ensure even and tight sealing for fast sample suck down.

Sodium Biselenite (L121) 100g
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Thermo ScientificTM OxoidTM
Use Thermo Scientific™ Oxoid™ Sodium Biselenite in preparation of Selenite Broth Base (CM0395), Mannitol Selenite Broth Base (CM0399) or Selenite Cystine Broth Base (CM0699). The complete medium is recommended for selective enrichment of Salmonella species from various samples.
- Dissolve 4 grams in 1 liter of distilled water and use this solution to reconstitute the base medium or tablets.
- Toxic by inhalation and if swallowed. Danger of cumulative effects.
- Not all products are available for sale in all territories. Please inquire.
- Remel™ and Oxoid™ products are now part of the Thermo Scientific brand.

Sodium carbonate anhydrous for analysis EMSURE® ISO (Merck)
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Merck
Description
CAS number: 497-19-8
Chemical Formula: Na₂CO₃
Molar Mass: 105.99 g/mol
Synonyms: anhydrous soda
EMSURE® grade solvents are suitable for a broad spectrum of classical lab applications and are frequently used in regulated and highly demanding lab applications. EMSURE® provides worldwide best and most extensive product specifications. We declare our EMSURE® range to be in compliance with the ACS, with the reagent part of the European Pharmacopoeia (Reag. Ph Eur) and also with the ISO standards.
Product Specification and MSDS for Sodium carbonate EMSURE® (Merck).

Sodium Carbonate Anhydrous, AR, 1kg
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Chemiz
Description
Synonyms: Calcined soda, Carbonic acid disodium salt, Soda ash, Sodium carbonate
Formula: Na2CO3
Sodium carbonate anhydrous is a water insoluble sodium source that is normally used in synthesis of other sodium compounds. Carbonate compounds also releases carbon dioxide when treated with diluted acid.
Note:
AR: Analitycal Reagent Grade: Reagents for analytical purpose or research work that need high purity.
CP: Chemically Pure Grade: Reagents for regular practical in its original purity.

Sodium Chloride Bacteriological 500g
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Thermo ScientificTM OxoidTM
Oxoid Sodium Chloride Bacteriological is a dehydrated salt suitable for inclusion in bacteriological culture media.

Sodium chloride for Analysis EMSURE® ACS,ISO,Reag. Ph Eur (Merck)
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Merck
Description
CAS number: 7647-14-5
Chemical Formula: NaCl
Molar Mass: 58.44 g/mol

Sodium Chloride Peptone Broth (Buffered) 500g
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Thermo ScientificTM OxoidTM
Carry out microbial limit testing by harmonized methodology of pharmaceutical products in accordance with USP/EP/BP/JP with Thermo Scientific™ Oxoid™ Buffered Sodium Chloride Peptone Solution (Dehydrated). The combination of phosphate buffer, sodium chloride and peptone increases the viability of sensitive microorganisms by providing an isotonic environment. This is of particular importance when trying to recover cells that may be stressed or sensitive to osmotic pressure.
Buffered Sodium Chloride Peptone Solution (Dehydrated), Oxoid Composition
ypical Formula | gm/litre |
Potassium dihydrogen phosphate | 3.56 |
Disodium hydrogen phosphate anhydrous | 5.77† |
Sodium chloride | 4.3 |
Peptone (meat) | 1.0 |
pH 7.0 ± 0.2 @ 25°C |
Buffered Sodium Chloride Peptone Solution (Dehydrated), Oxoid Preparation:
Suspend 14.63g of Sodium Chloride Peptone Broth (Buffered) in 1 litre of water (purified as required). If required, add 1-10ml Tween® 20 or 80 per litre of medium. Mix well and distribute into final containers. Sterilize by autoclaving at 121°C for 15 minutes.
Storage conditions and Shelf life
Store the dehydrated medium at 10-30°C and use before the expiry date on the label.
Store prepared media at room temperature.

Sodium Hydrogen Sulfite for Synthesis (Merck)
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Merck
Description
Assay (iodometric): 37.0 – 42.0 %
pH value: 4.5 (H₂O, 20 °C)
Synonyms: Sodium bisulfite, Sodium bisulfite solution, Bisulfite
Quality Level: MQ200
Product Specification and MSDS for Sodium Hydrogen Phosphate (Merck).

Sodium Hypochlorite 10% CP 2.5L
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Chemiz
Description
Synonyms: Antiformin, Sodium oxychloride, Chlorox
Formula: NaOCl
Sodium hypochlorite is a pale yellowish liquid with chlorine odour that possesses bactericidal, sporicidal and fungicidal effect. Sodium hypochlorite is an irritant, it should be diluted accordingly to be used as bleaching agent.
Note:
AR: Analitycal Reagent Grade: Reagents for analytical purpose or research work that need high purity.
CP: Chemically Pure Grade: Reagents for regular practical in its original purity.

Sodium Molybdate 2H2O, AR, 500g
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Chemiz
Description
Synonyms: Molybdic acid sodium salt dihydrate
Formula: Na2MoO4 · 2H2O
Sodium molybdate dihydrate is basic in nature. Its crystal belongs to the orthorhombic crystal system and space group Pbca. This chemical is used in various industry for corrosion inhibition as it is a non-oxidizing anodic inhibitor.
Note:
AR: Analitycal Reagent Grade: Reagents for analytical purpose or research work that need high purity.
CP: Chemically Pure Grade: Reagents for regular practical in its original purity.

Sodium peroxide for synthesis
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Merck
Description
CAS number: 1313-60-6
Chemical Formula: Na₂O₂
Molar Mass: 77.98 g/mol
Synonyms: –
Product Specification and MSDS for Sodium peroxide for synthesis (Merck).

Sodium sulfate anhydrous for analysis EMSURE® ACS,ISO,Reag. Ph Eur (Merck)
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Merck
Description
CAS number: 7757-82-6
Chemical Formula: Na₂SO₄
Molar Mass: 142.04 g/mol
Synonyms: –
EMSURE® grade solvents are suitable for a broad spectrum of classical lab applications and are frequently used in regulated and highly demanding lab applications. EMSURE® provides worldwide best and most extensive product specifications. We declare our EMSURE® range to be in compliance with the ACS, with the reagent part of the European Pharmacopoeia (Reag. Ph Eur) and also with the ISO standards.
Product Specification and MSDS for Sodium sulfate EMSURE® (Merck).
Solution Basins (Solution Reservoirs)
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Biologix
This item is not available at the moment. Please contact us for more information.
Characteristics
- Made of PVC, polystyrene (PS), or strong polypropylene (PP),PVC basins have transparent walls to permit easy viewing of contents
- Polypropylene basins are chemically resistant to alcohols and mild organic solvents
- PS one-channel basins are available in three sizes: 25ml, 55ml, and 100ml; 25ml and 55ml basins have a V-shaped bottom design

Sorbitol MacConkey Agar 500g
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Thermo ScientificTM OxoidTM
- Oxoid Sorbitol MacConkey Agar is a selective differential medium for the detection of E. coli O157.
- Also available C-T Supplement, Part No. SR0172E and SR0172H.
Sorbitol MacConkey Agar Base, Oxoid Composition
Typical Formula* | gm/litre |
Peptone | 20.0 |
Sorbitol | 10.0 |
Bile salts No.3 | 1.5 |
Sodium chloride | 5.0 |
Neutral red | 0.03 |
Crystal violet | 0.001 |
Agar | 15.0 |
pH 7.1 ± 0.2 @ 25°C |
Sorbitol MacConkey Agar, Oxoid Preparation:
Suspend 51.5g in 1 litre of distilled water. Bring to the boil to dissolve completely. Sterilise by autoclaving at 121°C for 15 minutes. Allow to cool to 50°C. Pour into sterile Petri dishes.
If required, reconstitute one vial of C-T supplement per 500ml medium, according to the instructions in the product leaflet. Aseptically add this to cooled medium before pouring into sterile Petri dishes
Storage conditions and Shelf life
Dehydrated Sorbitol MaConkey Agar must be stored tightly capped in the original container at 10-30ºC.
Oxoid Sorbitol MacConkey and Cefixime Tellurite Sorbitol MacConkey plates should be stored in the original packaging, at the temperature stated on the pack or product specification, and protected from direct light. When stored as directed, the unopened product will remain stable until the expiry date on the label.
Locally prepared media can be stored for up to 2 weeks when made from CM0813 and SR0172 according to the manufacturer’s instructions and stored at 2-8ºC, out of direct sunlight and protected from dessication. A longer shelf life may be attainable, but should be validated under the relevant, local manufacturing and storage conditions.

Sorbitol McConkey With BCIG 500g
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Thermo ScientificTM OxoidTM
- Oxoid Sorbitol MacConkey Agar w/BCIG is a selective medium containing the chromogenic substrate BCIG.
- Can be used with C-T Supplement, Part No. SR0172E and SR0172H.
Sorbitol MacConkey Agar w/BCIG, Oxoid Composition
Typical Formula* | gm/litre |
Peptone | 20.0 |
Sorbitol | 10.0 |
Bile Salts No. 3 | 1.5 |
Sodium chloride | 5.0 |
Neutral red | 0.03 |
Crystal violet | 0.001 |
Agar | 15.0 |
5-bromo-4-chloro-3-indolyl-b-D-glucuronide (BCIG) | 0.1 |
pH 7.1 ± 0.2 @ 25°C |
Sorbitol MacConkey Agar w/BCIG, Oxoid Preparation:
Suspend 51.6g of SMAC with BCIG in 1 litre of distilled water. Mix well and sterilise by autoclaving at 121°C for 15 minutes. Pour into sterile Petri dishes.
Storage conditions and Shelf life
Store the dehydrated medium at 10-30°C and use before the expiry date on the label.
Store the prepared plates at 2-8°C.