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Chemicals-S
Viewing Page 12 of 184
(1,835 results)
Silicon ICP, 1,000 ppm Si, 500 mL
Item #:
RIC/PSI1KN-500
Supplier #: PSI1KN-500
Supplier #: PSI1KN-500
Silicon ICP Standard 1 mL 1 mg Si (1000 ppm Si)Si in 3% HNO3 / trace HF Ricca Chemical; 500mL; Poly natural; CAS: 7664-39-3 (Hydrofluoric Acid), 7697-37-2 (Nitric Acid), 7440-21-3 (Silicon), 7732-18-5 (Water, Deionized); 1/EA Exact Match PSI1KN500
Sodium Thiosulfate, 99.9%, 250G
Item #:
SIG/217263-250G
Supplier #: 217263-250G
Supplier #: 217263-250G
SIGMA-ALDRICH CORPORATION Part No. 217263-250G
Formula: Na2S2O3 Formula Weight: 158.11
CAS No.: 7772-98-7 Purity: 99% Application: Applied in a widely useful, thiosulfate-assisted, synthesis of a variety of diamine-CuCN complexes. 1 Legal Information: ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC Packaging: 1, 2.5 kg in poly bottle Packaging: 250 g in poly bottle Packaging: 5 g in glass bottle
Formula: Na2S2O3 Formula Weight: 158.11
CAS No.: 7772-98-7 Purity: 99% Application: Applied in a widely useful, thiosulfate-assisted, synthesis of a variety of diamine-CuCN complexes. 1 Legal Information: ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC Packaging: 1, 2.5 kg in poly bottle Packaging: 250 g in poly bottle Packaging: 5 g in glass bottle
Sulfide CHEMets® Kit, 0-1 & 1-10 ppm
Item #:
TMS/9866F03
Supplier #: 9866F03
Supplier #: 9866F03
CHEMetrics Part No. K-9510
Sulfides are naturally present in ground waters as a result of leaching from sulfur-containing mineral deposits. Surface waters do not usually contain high sulfide concentrations. Sulfides result from the decomposition of organic matter, from bacterial sulfate reduction under anaerobic conditions and from various chemical processes. The Methylene Blue Method References: USEPA Methods for Chemical Analysis of Water and Wastes, Method 376.2 (1983). APHA Standard Methods, 21st ed., Method 4500-S 2 -D (2005). CHEMetrics test kits measure total acid soluble sulfides and employ the methylene blue methodology. Sulfides react with dimethyl-p-phenylenediamine in the presence of ferric chloride to produce methylene blue. Results are expressed as ppm (mg/L) S.
Sulfides are naturally present in ground waters as a result of leaching from sulfur-containing mineral deposits. Surface waters do not usually contain high sulfide concentrations. Sulfides result from the decomposition of organic matter, from bacterial sulfate reduction under anaerobic conditions and from various chemical processes. The Methylene Blue Method References: USEPA Methods for Chemical Analysis of Water and Wastes, Method 376.2 (1983). APHA Standard Methods, 21st ed., Method 4500-S 2 -D (2005). CHEMetrics test kits measure total acid soluble sulfides and employ the methylene blue methodology. Sulfides react with dimethyl-p-phenylenediamine in the presence of ferric chloride to produce methylene blue. Results are expressed as ppm (mg/L) S.
Sodium Hydroxide, Solution 0.01N, 1L
Item #:
VAN/BDH7620-1
Supplier #: BDH7620-1
Supplier #: BDH7620-1
VWR International BDH7620-1
Sodium Hydroxide, Solution 0.01N 1 L Made with deionized water. Suitable as a titrant.
Sodium Hydroxide, Solution 0.01N 1 L Made with deionized water. Suitable as a titrant.
Sodium Chloride ACS 12kg
Item #:
VAN/BDH9286-12KG
Supplier #: BDH9286-12KG
Supplier #: BDH9286-12KG
VWR International BDH9286-12KG
BDH SODIUM CHLORIDE ACS 12KG
BDH SODIUM CHLORIDE ACS 12KG
Sodium Sulfate Anhydrous Granular 2.5kg
Item #:
EMS/SX0760E-3
Supplier #: SX0760E-3
Supplier #: SX0760E-3
Tracepur. Sodium Sulfate, Anhy Exact Match MSX0760E3 EM-SX0760E-3
SulfaVer 4, Sulfate Reagent pk/100
Item #:
HCH/2106769
Supplier #: 2106769
Supplier #: 2106769
Sulfate Sulfaver 4 Reagent Powder Pillows Usepa accepted for reporting wastewater analysis using hach method 8051 method sulfaver 4 range up to 70 mg/l sample size 10 ml 100/tes Exact Match 97026-704
Sodium thiosulfate Sol. .025N 1L
Item #:
HCH/2409353
Supplier #: 2409353
Supplier #: 2409353
Sodium Thiosulfate Standard Solution Stabilized 0.0250 N 1 L For dissolved oxygen determination by Winkler titration. Exact Match 89231-070
