Categories Environmental Analytics MACHEREY-NAGEL Test Kits - VISOCOLOR® VISOCOLOR® HE MN VISOCOLOR® HE titration test kit total hardness H 2 , 0.05-2 °d and 0.01-0.36 mmol/l

Categories Environmental Analytics Analytik_Naturbaeder Water analytics with test kits MN VISOCOLOR® HE titration test kit total hardness H 20F, 0.5 - 20 °d and 0.1 - 3.6 mmol/l

Categories Environmental Analytics MACHEREY-NAGEL Test Kits - VISOCOLOR® VISOCOLOR® HE MN VISOCOLOR® HE titration test kit oxygen SA 10, 0,2 – 10 mg/l O2

Categories Environmental Analytics MACHEREY-NAGEL Test Kits - VISOCOLOR® VISOCOLOR® HE MN VISOCOLOR® HE titration test kit sulphite SU 100, 2 – 100 mg/l SO32–

Categories Environmental Analytics Analytik_Naturbaeder Water analytics with test kits MN VISOCOLOR® HE test kit manganese, 0,03 – 0,50 mg/l Mn

Categories Environmental Analytics MACHEREY-NAGEL Test Kits - VISOCOLOR® VISOCOLOR® HE MN VISOCOLOR® HE test kit nitrite, 0,005 – 0,10 mg/l NO2–

Categories Environmental Analytics MACHEREY-NAGEL Test Kits - VISOCOLOR® VISOCOLOR® HE MN VISOCOLOR® HE test kit pH 4,0 – 10,0

Categories Environmental Analytics Analytik_Naturbaeder Water analytics with test kits MN VISOCOLOR® HE test kit phosphate ( DEV ) 0,01 – 0,25 mg/l P

Categories Environmental Analytics MACHEREY-NAGEL Test Kits - VISOCOLOR® VISOCOLOR® HE MN VISOCOLOR® HE test kit phosphate 0,05 – 1,0 mg/l P

Categories Environmental Analytics MACHEREY-NAGEL Test Kits - VISOCOLOR® VISOCOLOR® HE MN VISOCOLOR® HE test kit silica, 0,01 – 0,30 mg/l Si

MN VISOCOLOR® HE titration test kit total hardness H 2 , 0.05-2 °d and 0.01-0.36 mmol/l

Be the first to rate this product

Available

52.22 €

Price plus VAT, plus delivery

Add to basket

• Recommend
• Ask question

• 

• Description

VISOCOLOR® HE total Hardness H 2 • Titrimetric determination of total hardness • Complexometric titration in accordance with DIN 38406 E3 and DIN 38409 H6. • Type: high sensitive titration kit • Range: 1 syringe is sufficient for the determination of 0.05 – 2.0 °d or 0.01 – 0.36 mmol/l Ca2+ (corresponds to 1 – 36 mg/l CaCO3). • Sufficient for: 200 tests with an average hardness of 1 °d or 0.18 mmol/l Ca2+ • Shelf life at least: 18 months • Sea water suitability: no • Detectable with PF-11: no • The total hardness of water is based on its content of alkaline earth ions (calcium and magnesium ions). • This content depends on the geological conditions the water encounters during its course and may vary widely. • Knowledge of the total hardness is important for the use of water in industrial as well as municipal applications, e. g. in the household as wash water or as boiler feed water in industry.

We also recommend

MN VISOCOLOR® HE refill pack total hardness H 2, 0.05-2 °d and 0.01-0.36 mmol/l 35.04 € *

* Prices plus VAT, plus delivery

---

Browse this category: VISOCOLOR® HE

---

MN VISOCOLOR® HE titration test kit total hardness H 20F, 0.5 - 20 °d and 0.1 - 3.6 mmol/l

Be the first to rate this product

Available

52.22 €

Price plus VAT, plus delivery

Add to basket

• Recommend
• Ask question

• 

• Description

Titrimetric determination of total hardness. Features/ Specifications: • Complexometric titration in accordance with DIN 38406 E3 and DIN 38409 H6. • Type: high sensitive titration kit • Range: 1 syringe is sufficient for the determination of 0.5 – 20 °d or 0.1 – 3.6 mmol/l Ca2+ (corresponds to 10 – 360 mg/l CaCO3). • 1 gradation mark = 0.5 °d = 0.1 mmol/l • Sufficient for: 100 tests with an average hardness of 10 °d • Shelf life at least: 18 months • Sea water suitability: yes, after dilution (1:30) • Detectable with PF-11: no • The total hardness of water is based on its content of alkaline earth ions (calcium and magnesium ions). • This content depends on the geological conditions the water encounters during its course and may vary widely. • Knowledge of the total hardness is important for the use of water in industrial as well as municipal applications, e. g. in the household as wash water or as boiler feed water in industry.

We also recommend

MN VISOCOLOR® HE refill pack total hardness H20 F, 0.5 - 20 °d and 0.1 - 3.6 mmol/l 35.04 € *

* Prices plus VAT, plus delivery

---

Customers who bought this product also bought

MN pH Fix® indicator strips pH 4,5-10,0 14.50 € *	MN VISOCOLOR® alpha test kit total hardness, 1 - 10 °d and more highly 23.81 € *	MN VISOCOLOR® ECO test kit pH-value 4,0 - 9,0 50.30 € *
MN VISOCOLOR® HE test kit manganese, 0,03 – 0,50 mg/l Mn 106.56 € *	MN VISOCOLOR® HE titration test kit calcium CA 20, 0.5 - 20 °d/0.1 - 3.6 mmol/l 52.22 € *

* Prices plus VAT, plus delivery

---

Browse these categories as well: Water analytics with test kits, VISOCOLOR® HE

---

MN VISOCOLOR® HE titration test kit sulphite SU 100, 2 – 100 mg/l SO32–

Be the first to rate this product

Available

76.51 €

Price plus VAT, plus delivery

Add to basket

• Recommend
• Ask question

• 

• Description

VISOCOLOR® HE Sulphite SU 100 • Titrimetric determination of sulphite • Titrimetric determination with addition of iodine solution and reverse titration of unused iodine with sodium thiosulphate. • Type: high sensitive titration kit (refill pack) • Range: 1 syringe is sufficient for 2 – 100 mg/l SO32– 1 gradation mark = 2 mg/l SO32– • Sufficient for: 100 tests with an average sulphite content of 100 mg/l SO32– • Shelf life at least: 3 years • Sea water suitability: yes • Detectable with PF-11: no • Sulphite ions are not present in natural unpolluted waters, however they often appear in large quantities in industrial waste waters (e. g. paper mills, dye works).

We also recommend

MN VISOCOLOR® HE titration refill pack sulphite SU 100, 2 – 100 mg/l SO32– 57.22 € *

* Prices plus VAT, plus delivery

---

Customers who bought this product also bought

MN VISOCOLOR® HE titration test kit carbonate hardness C20, 0,5–20 °d und 0,2–7 mmol/l 52.22 € *

* Prices plus VAT, plus delivery

---

Browse this category: VISOCOLOR® HE

---

MN VISOCOLOR® HE test kit manganese, 0,03 – 0,50 mg/l Mn

Be the first to rate this product

Available

106.56 €

Price plus VAT, plus delivery

Add to basket

• Recommend
• Ask question

• 

• Description

VISOCOLOR® HE Manganese • Colorimetric determination of manganese • In alkaline solution manganese ions react with formaldoxime to form an orange-red complex. • Nickel interferes causing a yellow-green reaction colour. (Reaction principle analogous to DIN 38406-E2) • Type: high sensitive test kit • Range: 0.0 · 0.03 · 0.06 · 0.10 · 0.15 · 0.20 · 0.25 · 0.30 · 0.40 · 0.50 mg/l Mn • Sufficient for: 100 determinations • Shelf life at least: 18 months • Sea water suitability: yes, but depending on the composition of the sea water • Detectable with PF-11: no • Natural waters contain manganese in the divalent, soluble form as well as in colloidal tri- and tetravalent states. • Valencies are interchanged by oxidation-reduction reactions taking place in the water. • The test procedure determines all oxidation states of manganese.

Customers who bought this product also bought

MN VISOCOLOR® ECO refill pack iron 2, 0.04-1.0 mg/l Fe 39.46 € *	MN VISOCOLOR® HE test kit iron, 0.01 - 0.20 mg/l Fe 108.48 € *	MN VISOCOLOR® HE titration test kit chloride CL 500, 5 - 500 mg/l Cl 71.14 € *
MN VISOCOLOR® HE titration test kit total hardness H 20F, 0.5 - 20 °d and 0.1 - 3.6 mmol/l 52.22 € *	MN pH Fix® indicator strips pH 4,5-10,0 14.50 € *

* Prices plus VAT, plus delivery

---

Browse these categories as well: Water analytics with test kits, VISOCOLOR® HE

---

MN VISOCOLOR® HE test kit nitrite, 0,005 – 0,10 mg/l NO2–

Be the first to rate this product

Available

108.48 €

Price plus VAT, plus delivery

Add to basket

• Recommend
• Ask question

• 

• Description

VISOCOLOR® HE Nitrite • Colorimetric determination of nitrite • In acidic solution sulphanilic acid or sulphanilamide are diazotised with nitrite. • The diazonium salt is then coupled with an aromatic amine, forming an intensely coloured azo dye. • Organic colloids, chlorine, humic acids and coloured heavy metal ions interfere.(Reaction principle analogous to APHA 4500-NO2-B, EPA 35.1, DIN EN 26777-D10) • Type: high sensitive test kit • Range: 0.0 · 0.005 · 0.010 · 0.015 · 0.02 · 0.03 · 0.04 · 0.06 · 0.08 · 0.10 mg/l NO2– • Sufficient for: 150 determinations • Shelf life at least: 24 months • Sea water suitability: yes • Detectable with PF-11: no • In surface waters nitrite ions are generally present in low concentrations. • Their presence in ground water is less common. • In waste waters nitrite frequently occurs, even in fairly high concentrations.

We also recommend

MN VISOCOLOR® HE refill pack nitrite, 0,005 – 0,10 mg/l NO2– 67.39 € *

* Prices plus VAT, plus delivery

---

Customers who bought this product also bought

MN VISOCOLOR® HE titration test kit carbonate hardness C20, 0,5–20 °d und 0,2–7 mmol/l 52.22 € *

MN VISOCOLOR® HE test kit ammonium, 0.02 - 0.50 mg/l NH4+ 108.48 € *

* Prices plus VAT, plus delivery

---

Browse this category: VISOCOLOR® HE

---

MN VISOCOLOR® HE test kit pH 4,0 – 10,0

Be the first to rate this product

Available

106.56 €

Price plus VAT, plus delivery

Add to basket

• Recommend
• Ask question

• 

• Description

Colorimetric determination of pH-value. Features/ Specifications: • A special mixture of indicator dyes assumes a characteristic colour for every pH value within the range of the kit. • The favourable ratio between sample volume and amount of indicator minimises the indicator error (acid-base-error). • This allows reliable pH measurements in weakly buffered solutions as well. • High contents of neutral salts and colloids as well as organic solvent concentrations above 10 % can cause wrong results. • Type: high sensitive test kit. • Range: pH 4.0 · 5.0 · 5.5 · 6.0 · 6.5 · 7.0 · 7.5 · 8.0 · 8.5 · 9.0 · 10.0 • Sufficient for: 500 determinations. • Shelf life at least: 24 months. • Sea water suitability: yes. • Detectable with PF-11: no. • The pH value indicates whether a water reacts acidic, alkaline or neutral. • It is determined by the concentration of hydrogen ions. • All biological processes in water are tied to specific pH ranges. • For municipal and industrial applications, too, the control of specific pH limits is important since e. g. the efficiency of sewage plants or the corrosive action of tap water on the pipes depend in the pH value. • Contrary to pH indicator papers VISOCOLOR® pH test kits can also be used to determine accurate pH values in unbuffered sample solutions.

We also recommend

MN VISOCOLOR® HE refill pack pH 4,0-10,0 66.53 € *

* Prices plus VAT, plus delivery

---

Browse this category: VISOCOLOR® HE

---

MN VISOCOLOR® HE test kit phosphate ( DEV ) 0,01 – 0,25 mg/l P

Be the first to rate this product

Available

106.56 €

Price plus VAT, plus delivery

Add to basket

• Recommend
• Ask question

• 

• Description

VISOCOLOR® HE Phosphate (DEV) • Colorimetric determination of phosphate • Ammonium molybdate reacts with phospat ions to form phosphomolybdic acid which is reduced to molybdenum blue. • The tests with the designation DEV use the same reagents as the German Standard Methods. • Larger amounts of oxidising compounds inhibit the formation of the blue colour complex and have to be destroyed prior to the test. • H2S interferes in concentrations above 2 mg/l, but can be expelled after acidification of the water sample. • Heavy metals in excess of 10 mg/l can slightly decrease the colour intensity, vanadium causes an increase in colour. • Silica interferes and causes falsely high results. • Arsenates react like phosphates. • Citrate, oxalate, tartrate etc. reduce the sensitivity of the phosphate test. (Reaction principle analogous to APHA 4500-P E, EPA 365,2+3, DIN EN ISO 6878-D11) • Type: high sensitive test kit • Range: 0.0 · 0.01 · 0.02 · 0.03 · 0.05 · 0.07 · 0.10 · 0.15 · 0.20 · 0.25 mg/l P • Sufficient for: 100 determinations • Shelf life at least: 24 months • Sea water suitability: yes • Detectable with PF-11: no • The phosphate content in a surface water has direct consequences for its ability to support the growth of certain organisms. • Since ever increasing quantities of phosphates are being fed through domestic waste waters into rivers and lakes, these waters have a tendency towards eutrophication. • Exact data about the phosphate content are important for boiler water and feed water. • Precise dosing of phosphates in these waters can inhibit formation of boiler scale. • Pyro-, meta- and polyphosphates are not determined with VISOCOLOR® test kits. • The determination of total phosphate requires a decomposition prior to the test.

We also recommend

MN VISOCOLOR® HE refill pack phosphate (DEV), 0,01 – 0,25 mg/l P 66.53 € *

* Prices plus VAT, plus delivery

---

Customers who bought this product also bought

MN PEHANON® indicator paper pH 6,0 - 8,1 16.70 € *

MN pH Fix® indicator strips pH 6,0 - 7,7 14.50 € *

MN VISOCOLOR® ECO refill pack nitrate, 1–120 mg/l NO3– 24.10 € *

* Prices plus VAT, plus delivery

---

Browse these categories as well: Water analytics with test kits, VISOCOLOR® HE

---

MN VISOCOLOR® HE test kit phosphate 0,05 – 1,0 mg/l P

Be the first to rate this product

Available

108.48 €

Price plus VAT, plus delivery

Add to basket

• Recommend
• Ask question

• 

• Description

VISOCOLOR® HE Phosphate • Colorimetric determination of phosphate • Ammonium molybdate reacts with phospat ions to form phosphomolybdic acid which is reduced to molybdenum blue. • The tests with the designation DEV use the same reagents as the German Standard Methods. • Larger amounts of oxidising compounds inhibit the formation of the blue colour complex and have to be destroyed prior to the test. • H2S interferes in concentrations above 2 mg/l, but can be expelled after acidification of the water sample. • Heavy metals in excess of 10 mg/l can slightly decrease the colour intensity, vanadium causes an increase in colour. • Silica interferes and causes falsely high results. • Arsenates react like phosphates. • Citrate, oxalate, tartrate etc. reduce the sensitivity of the phosphate test. (Reaction principle analogous to APHA 4500-P E, EPA 365,2+3, DIN EN ISO 6878-D11) • Type: high sensitive test kit • Range: 0.0 · 0.05 · 0.10 · 0.15 · 0.20 · 0.3 · 0.4 · 0.6 · 0.8 · 1.0 mg/l P • Sufficient for: 300 determinations • Shelf life at least: 24 months • Sea water suitability: yes • Detectable with PF-11: no • The phosphate content in a surface water has direct consequences for its ability to support the growth of certain organisms. • Since ever increasing quantities of phosphates are being fed through domestic waste waters into rivers and lakes, these waters have a tendency towards eutrophication. • Exact data about the phosphate content are important for boiler water and feed water. • Precise dosing of phosphates in these waters can inhibit formation of boiler scale. • Pyro-, meta- and polyphosphates are not determined with VISOCOLOR® test kits. • The determination of total phosphate requires a decomposition prior to the test.

We also recommend

MN VISOCOLOR® HE refill pack phosphate 0,05 – 1,0 mg/l P 67.39 € *

* Prices plus VAT, plus delivery

---

Browse this category: VISOCOLOR® HE

---

MN VISOCOLOR® HE test kit silica, 0,01 – 0,30 mg/l Si

Be the first to rate this product

Available

108.48 €

Price plus VAT, plus delivery

Add to basket

• Recommend
• Ask question

• 

• Description

VISOCOLOR® HE Silica • Colorimetric determination of silica • In acidic solution soluble silica or silicates react with ammonium molybdate to form yellow silicomolybdic acid, which is reduced to silico-molybdenum blue with a reducing agent. • Phosphates interfere only in high concentrations (> 30 mg/l PO43-). (Reaction principle analogous to APHA 4500-SI-E, DIN EN ISO 16264-H57) • Type: high sensitive test kit • Range: 0.0 · 0.01 · 0.02 · 0.03 · 0.05 · 0.07 · 0.10 · 0.15 · 0.20 · 0.30 mg/l Si • Sufficient for: 120 determinations • Shelf life at least: 24 months • Sea water suitability: yes • Detectable with PF-11: no • Natural water contains silica in different amounts, depending on the geological conditions the water encounters during its course. • The silica occurs partly as soluble silicate, partly colloidal as polysilicic acids. • The silica content in water for medium and high pressure boilers may not exceed certain limits; in power plants therefore constant measurement of the silica content is required.

We also recommend

MN VISOCOLOR® HE refill pack silica, 0,01 – 0,30 mg/l Si 67.39 € *

* Prices plus VAT, plus delivery

---

Browse this category: VISOCOLOR® HE

---