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Product Image-192316H

Orthoboric acid 40 g/l in aqueous solution for Kjeldahl determinations, with indicator

Catalog Number: (192316H)
Supplier: VWR Chemicals
Description: Orthoboric acid 40 g/l in aqueous solution for Kjeldahl determinations, with indicator
UOM: 1 * 2,5 L

SDS Certificates


Image Unavailable-1.03170.0100

Eriochrome Black T Reag. Ph. Eur., ACS indicator for complexometry, Supelco®

Supplier: Merck
Description: C.I. 14645

SDS Certificates

Image Unavailable-ICNA0210313305

Tris(hydroxymethyl)aminomethane (TRIS, Trometamol) ≥99.9%, white crystalline powder, Ultrapure

Supplier: MP Biomedicals
Description: Tris have been useful as buffers in a wide variety of biological systems. It has been used as a starting material for polymers, oxazolones (with carboxylic acids) and oxazolidines (with aldehydes). It does not precipitate calcium salts and is of value in maintaining solubility of manganese salts. It can be used for the direct standardization of a strong acid solution; the equivalence point can be determined either potentiometrically or by use of a suitable indicator such as 3-(4-Dimethylamino-1-naphthylazo)-4-methoxybenzenesulfonic acid. It is RNAse and DNAse-free. Tris is relatively non-hygroscopic ; but, if needed, it can be dried at 100 °C for up to 4 hours to remove any water.
Tris is used in pH control in vitro and in vivo for body fluids and in buffering systems for electrophoresis applications.Tris is used in assays used to characterize the activity and kinetics of the enzymes that catalyze SUMOylation of Small ubiquitin-like proteins (SUMO) and SUMO-dependent protein-protein interactions.

Image Unavailable-318736-100ML

Bromocresol purple 0.04 wt. % in H₂O, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY
Description: Bromocresol purple (BCP) is an organic dye and a pH indicator. It changes from yellow (pH 5.2) to purple (6.8). BCP reacts with ammonia to yield ammonium salt. Hence, it can be used as an ammonia sensing probe.

Product Image-0431-25G

Bromothymol blue ACS

Catalog Number: (0431-25G)
Supplier: VWR Chemicals
Description: pH indicator goes from yellow to blue over a range of 6.0 to 7.6. Used to trace movement of fluids from the lymph and also for demonstration of fungal hyphae within plant roots.
UOM: 1 * 25 g

SDS Certificates


Product Image-95097.5000

Orthoboric acid 40 g/l in aqueous solution with indicator, VOLUSOL®

Catalog Number: (95097.5000)
Supplier: VWR Chemicals
Description: Orthoboric acid 40 g/l in aqueous solution with indicator, VOLUSOL®
UOM: 1 * 5 L

SDS Certificates


Image Unavailable-ENZOENZ52103

5(6)-Carboxy-2′,7′- dichlorofluorescein diacetate ≥98% (by HPLC), Ultrapure

Catalog Number: (ENZOENZ52103)
Supplier: ENZO LIFE SCIENCES
Description: pH indicator
UOM: 1 * 100 mg
Product Image-0531-25G

Bromocresol purple free acid, Reagent Grade

Catalog Number: (0531-25G)
Supplier: VWR Chemicals
Description: Viability pH indicator goes from yellow to purple over a range of 5.2 to 6.8. Also used for live/dead differentiation of yeast.
UOM: 1 * 25 g

SDS Certificates


Image Unavailable-1.09198.1000

Alkali blue (C.I. 42765) solution indicator, Supelco®

Supplier: Merck
Description: Alkali blue (C.I. 42765) solution indicator, Supelco®

Image Unavailable-211761-10G

m-Cresol purple sodium salt 90% (dye content), Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY
Description: m-cresol purple sodium salt (MCP) is a colorimetric pH indicator dye. The dye is blue in anionic form and yellow in protonated form. It has been used to measure pH of seawater using a spectrophotometer.

Product Image-0548-50G

Bromocresol green sodium salt ACS

Catalog Number: (0548-50G)
Supplier: VWR Chemicals
Description: A pH indicator (yellow to blue; range 3,8 to 5,4).
UOM: 1 * 50 g

SDS Certificates


Image Unavailable-1.07242.0100

Phenol red solution indicator, Supelco®

Catalog Number: (1.07242.0100)
Supplier: Merck
Description: Phenol red solution indicator, Supelco®
UOM: 1 * 100 mL

SDS


Image Unavailable-277339-1L

Methyl purple, Sigma-Aldrich®

Catalog Number: (277339-1L)
Supplier: SIGMA ALDRICH MICROSCOPY
Description: Methyl Purple,in H2O (Methyl Purple indicator solution)
UOM: 1 * 1 L
Image Unavailable-69710-25G

Methyl violet 2B for microscopy, Sigma-Aldrich®

Supplier: SIGMA ALDRICH MICROSCOPY
Description: Methyl violet for microscopy (Bact., Bot., Hist.), indicator (pH 0.1 - 2.0), mixture of polymethylated pararosaniline hydrochlorides.

Product Image-1.03874.5000

Absorbent for acid spills, Chemizorb® H+

Supplier: Merck
Description: Chemizorb H+ is a granulate mixture that consists of a mineral co-polymer absorbent, an alkaline neutraliser, and a pH indicator.

Certificates

Product Image-1.01596.1000

Absorbent powder, Chemizorb® Alkalis

Catalog Number: (1.01596.1000)
Supplier: Merck
Description: Chemizorb Alkalis is a powder mixture that consists of a mineral co-polymer as the absorbent, an acidic salt as the neutraliser, and a pH indicator.
UOM: 1 * 1 kg

SDS


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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us on 0800 22 33 44
Additional Documentation may be needed to purchase this item. A VWR representative will contact you if needed.
Additional Documentation may be needed to purchase this item. A VWR representative will contact you if needed.
This product has been blocked by your organisation. Please contact your purchasing department for more information.
The original product is no longer available. The replacement shown is available.
Product(s) marked with this symbol are discontinued - sold till end of stock. Alternatives may be available by searching with the VWR Catalogue Number listed above. If you need further assistance, please call VWR Customer Service on 0800 22 33 44.
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