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Solutions "N"
Supplier of general ph buffer solutions and specialty ph buffers like Neutral Red Test Solution, New Methylene Blue, Nickel Sulfate, Nitric Acid, Nitrification Inhibitor, ...
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N-(1-Naphthyl)-Ethylenediamine Dihydrochloride 0.1% Solution
APHA for Nitrogen (Nitrate) (*Shelf Life 30 Days)
        N-105 100ml         8.26
        N-105 500ml        13.40

Nessler Reagent
    APHA for Ammonia Nitrogen (Contains: Potassium Iodide, Mercuric Iodide and Sodium Hydroxide 16%) Poison Pack May be Required for Shipping
        N-110 100ml         14.03
        N-110 500ml         32.79
        N-110 liter            71.29

Neutral Red 0.1% Aqueous
        N-212 500ml         8.94

Neutral Red Test Solution 0.1% In 50% Ethanol
    USP/NF
        N-114 500ml         9.56

Neutral Red Indicator 0.5% Aqueous
    pH Range 6.8 to 8.0, Color Change Red to Yellow
        N-213 500ml         14.65

Neutral Red Indicator 1% Aqueous
    pH Range 6.8 to 8.0, Color Change Red to Yellow
        N-214 500ml         32.67
        N-214 liter             52.99

New Methylene Blue (Brecher)
    For Reticulocytes
        N-116 100ml         10.76

New Methylene Blue N
    For Reticulocytes
        N-117 100ml         10.76

Nickel Nitrate 5%
    1ml=10mg Ni (Meets Specifications of ASTM D-2972)
        N-121 liter             27.38

Nickel Sulfate 1.0 M
    (Meets Specifications of ASTM D-1246)
        N-123 500ml         55.88

Nitrate Buffer Solution
    APHA for Nitrogen (Nitrate) by the Specific Ion Method (Contains: Aluminum Sulfate, Silver Sulfate, Boric Acid and Sulfamic Acid) Adjusted to pH 3.0
        N-208 500ml         19.10
        N-208 liter             31.95

Nitrate Standard 100ppm
   1ml=0.1mg N (100mg per liter NO₃-N) Meets EPA, APHA and AOAC Specifications
        N-125 100ml         7.40
        N-125 500ml       17.12

Nitrate Standard 500ppm
    1ml=0.5mg N (500mg per liter NO₃-N) Meets EPA and APHA Specifications
        N-128 500ml         17.10

Nitrate Standard 1000ppm
    1ml=1mg N (1000mg per liter NO₃-N) Meets EPA, APHA and AOAC Specifications
        N-126 100ml         7.40
        N-126 500ml       17.12
        N-126 liter          26.87

Nitric Acid 1% V/V
    1+99 (Meets Specifications of ASTM D-2907)
        N-153 liter         10.96

Nitric Acid 2% V/V
    1+49
        N-138 500ml         9.23

Nitric Acid 3.3% V/V
    1+30 (Meets Specifications of ASTM D-1943)
        N-152 liter         12.05

Nitric Acid 5% in Methanol
        NX-904 2.5 liter     30.39


Nitric Acid 6.66% V/V
    1+15 (Meets Specifications of ASTM E-318)
         N-148 500ml         9.23

Nitric Acid 10% V/V
    1+9 (Meets Specifications of ASTM D-2907)
        N-147 500ml         9.31
        N-147 liter            12.54

Nitric Acid 10% V/V in Methanol
        NX-930 liter         26.57

Nitric Acid 15% V/V
        N-141 liter             13.44
        N-141 2.5 liter        25.93


Nitric Acid 15% in Methanol
         NX-924 liter           35.84

Nitric Acid 20% V/V
    1+4
      N-145 500ml         10.41
         N-145 liter             18.53
         N-145 2.5 liter       26.74

Nitric Acid 30% V/V
       NX-920 500ml         11.11
         NX-920 2.5 liter       28.14

Nitric Acid 33.3% V/V
    1+2
        NX-927 liter           20.48

Nitric Acid 35% V/V
         NX-908 2.5 liter      32.09

Nitric Acid 40% V/V
    2+3 (Meets Specifications of ASTM D-3557)
       N-131 500ml         13.05
         N-131 liter             21.37

Nitric Acid 50% V/V
    1+1
       N-150 500ml             14.12
         N-150 liter                 21.76
         N-150 2.5 liter           44.50

Nitric Acid 0.1 N
    N/10
        N-160 500ml         8.22

Nitric Acid 1.0 N
         N-165 500ml         9.07
             N-165 liter           14.26

Nitric Acid 1.28 N
      N-255 2.5 liter     44.57

Nitric Acid 2.0 N
      N-167 500ml         17.44
         N-167 liter             30.13

Nitric Acid 2.7 N
         NX-950 liter             35.00

Nitric Acid 3.0 N
        NX-910 liter         31.03

Nitric Acid 6.0 N
         N-168 500ml         18.78

Nitric Acid 8.0 N
      N-200 500ml         19.10
         N-200 liter             36.32

Nitric Acid 10.0 N
         NX-907 500ml         21.38

Nitrification Inhibitor
    APHA for B.O.D. (Inhibits Nitrogenous Oxygen Demand in the B.O.D. Test)
        N-185 50gm         32.17
           N-185 125gm       75.36
        N-185 500gm     190.80

Nitrite Standard 1000ppm
    1ml=1mg NO₂-N (Meets Specifications of ASTM) *Shelf life 30 Days-Keep Refrigerated
       N-170 100ml         7.40
         N-170 500ml       17.12

Nitrogen Standard
    1000ppm Nitrogen or 1220ppm Ammonia (1ml=1mg N (1.22mg NH₃)) APHA
         N-171 100ml         7.40
         N-171 500ml       17.12
         N-171 liter           26.89

p-Nitrophenol 0.1% Aqueous
    pH Range 5.5 to 6.6, Color Change Colorless to Yellow
        N-174 20 liter         133.21