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General Chemicals

We provide affordable reagent-grade chemicals for laboratories and other technical uses. Browse our selection of ACS grade and research grade chemicals.

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  1. MEDI-TEST COMBI 10 VET, PK/100 strips

    Macherey-Nagel, Inc.

    $47.40

    Special Price $46.30

    Pack Size: box of 100 strips Hazard Class /UN Number: Not Restricted Storage Temp: Room Temperature Urine test strip for veterinary applications including glucose, keytones, protein, blood, leukocytes, nitrite, specific gravity, pH, bilirubin and urobilinogen Learn More
  2. Chlortesmo, PK/200 strips

    Macherey-Nagel, Inc.

    $59.75

    Special Price $58.37

    Pack Size: box of 200 strips Hazard Class /UN Number: Not Restricted Storage Temp: Room Temperature This test paper is used for the qualitative determination of free halogens (chlorine, bromine, iodine). In the presence of these compounds the pale yellow paper turns blue. Free nitrous acid HNO 2 (not nitrite ions) interferes, but can be destroyed by additions of amidosulphuric acid.Limit of sensitivity: 1 mg/l chlorine Instruction Sheet (For semi-quantitative determination see Ref 90709 Chlorine Test paper or Ref 91339 QUANTOFIX® Chlorine Sensitive) Learn More
  3. QUANTOFIX Glutaraldehyde, PK/100 strips

    Macherey-Nagel, Inc.

    $48.20

    Special Price $47.21

    Pack Size: box of 100 strips Hazard Class /UN Number: Not Restricted Storage Temp: Room Temperature Test sticks for the semi-quantitative determination of glutaraldehyde. 0 - 0.5 - 1 - 1.5 - 2 - 2.5 mg/l Learn More
  4. Wator, PK/50 pieces 78

    Macherey-Nagel, Inc.

    $50.00

    Special Price $48.82

    Pack Size: box of 50 pieces (78 x 40 mm) Hazard Class /UN Number: Not Restricted Storage Temp: Room Temperature Indicator paper for the determination of water in butter according to DIN 10 311 The storage life of butter is closely linked to the size of the water and buttermilk particles it contains. For this reason it is important to check the water distribution during the manufacturing process and before storing larger quantities. The WATOR indicator paper allows an exact means for controlling the water distribution. Evaluation charts according to the 5-point evaluation system are available on request. On contact with water WATOR develops dark-blue spots, the size and number of which is correlated to the distribution of the water in the butter. Instruction Sheet Learn More
  5. QUANTOFIX Tin PK/100 strips

    Macherey-Nagel, Inc.

    $51.00

    Special Price $49.82

    Pack Size: box of 100 strips Hazard Class /UN Number: Not Restricted Storage Temp: Room Temperature Test sticks for the semi-quantitative determination of tin(II)-ions in solutions Gradation of scale: 0-10-25-50-100-250-500 mg/l Sn 2+ white to dark blue Tetravalent tin has to be reduced. To do this, add 0.5 ml hydrochloric acid 37 % and some magnesium turnings to 5 ml of the test solution and heat to boiling temperature. Hexacyano-ferrates interfere > 10 mg/l (yellow-brown colour) and must be decomposed by evaporation with sulphuric acid 96 %. *TEST PROCEDURE IS INTRICATE, PRODUCT NOT RECOMMENDED FOR USE BY NON CHEMIST* REQUEST TEST PROCEDURE PRIOR TO ORDERING. Learn More
  6. QUANTOFIX Chromate, PK/100 strips &

    Macherey-Nagel, Inc.

    $47.10

    Special Price $46.19

    Pack Size: box of 100 strips & reagent Hazard Class /UN Number: 3316 Storage Temp: Room Temperature. QUANTOFIX® Chromate *This item is hazardous and cannot ship Parcel Post. It is required to ship UPS Ground Test sticks and reagents for the semi-quantitative determination of chromate in solutions Gradation of scale: 0-3-10-30-100 mg/l CrO 4 2- white to violet Interferences caused by molybdates are eliminated by addition of oxalic acid in crystalline form to the strongly acidic solution. Iron(III) ions are precipitated with sodium hydroxide solution 32 %. Learn More
  7. VISO ECO FREE CHLORINE, PK/150 tests

    Macherey-Nagel, Inc.

    $60.30

    Special Price $58.88

    Pack Size: 1 kit (~150 tests) Hazard Class /UN Number: Not Restricted Storage Temp: Room Temperature Environmental test kit for Free Chlorine. Gradation of scale: <0.1 - 0.1 - 0.2 - 0.3 - 0.4 - 0.6 - 0.9 - 1.2 - 2.0 mg/L Cl2 Learn More
  8. QUANTOFIX Potassium, PK/100 strips &

    Macherey-Nagel, Inc.

    $56.80

    Special Price $55.46

    Pack Size: box of 100 strips & reagent Hazard Class /UN Number: Not Restricted Storage Temp: Room Temperature Test sticks and reagents for the semi-quantitative determination of potassium (K + ) in solutions Gradation of scale: 0-200-400-700-1000-1500 mg/l K + yellow to orange Sodium ions > 3000 mg/l cause low results. Learn More
  9. QUANTOFIX Zinc Hazardous, PK/100 strips &

    Macherey-Nagel, Inc.

    $54.20

    Special Price $53.05

    Pack Size: box of 100 strips & reagent Hazard Class /UN Number: 3316 Storage Temp: Room Temperature Test sticks and reagents for the semi-quantitative determination of zinc (Zn 2+ ) in solutions Gradation of scale: 0-2-5-10-25-50-100 mg/l Zn 2+ orange to red. QUANTOFIX® Zinc *This item is hazardous and cannot ship Parcel Post. It is required to ship UPS Ground. Learn More
  10. VISO ECO Ph 4.0-9.0 , PK/400 tests

    Macherey-Nagel, Inc.

    $58.00

    Special Price $56.66

    Pack Size: 1 kit (~400 tests) Hazard Class /UN Number: 3316 Storage Temp: Room Temperature Environmental test kit for pH Gradation of scale: 4.0 - 5.0 - 6.0 - 6.5 - 7.0 - 7.5 - 8.5 - 8.5 - 9.0 mg/l (ppm). *This item is hazardous and cannot ship Parcel Post. It is required to ship UPS Ground* Learn More
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