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Codow - Your trusted brand of analytical reagents

Standard titration solution, indicator solution, buffer solution
Comply with international standards, ISO 9001 quality system

More than 20,000 product specifications, 50,000+ scientific researchers, 8,000+ corporate users’ common trust.

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Clean production environment

All products are produced and packaged in a clean environment
The production workshop is equipped with first-class ultrapure water and fresh air system

R&D and production systems comply with ISO 9001 quality system standards.

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Professional production and analysis equipment and instruments

Equipped with advanced production equipment and analytical instruments
Verified and calibrated by authoritative metrology institutions

More than 80 sets of production equipment, more than 30 sets of analytical instruments, and more than 2,000 square meters of analytical space.

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New Products

More than 200 products are updated every month

Iodine standard solution c(I2)=0.1 N
Iodine standard solution c(I2)=0.1 N
c(I2)=0.1 N 
New
Iodine standard solution

$30.00

Silver nitrate standard titration solution c(AgNO3)=0.13 mol/L
Silver nitrate standard titration solution c(AgNO3)=0.13 mol/L
c(AgNO3)=0.13 mol/L 
New
Silver nitrate standard titration solution

$18.00

Ethylenediaminetetraacetic acid disodium standard solution c(EDTA)=0.05 mmol/L
Ethylenediaminetetraacetic acid disodium standard solution c(EDTA)=0.05 mmol/L
c(EDTA)=0.05 mmol/L 
New
Ethylenediaminetetraacetic acid disodium standard solution

$22.00

High cerium sulfate standard titration solution c[Ce(SO4)2]=0.1 mol/L
High cerium sulfate standard titration solution c[Ce(SO4)2]=0.1 mol/L
c[Ce(SO4)2]=0.1 mol/L 
New
High cerium sulfate standard titration solution

$37.00

Nitric acid standard titration solution c(HNO3)=0.1 mmol/L
Nitric acid standard titration solution c(HNO3)=0.1 mmol/L
c(HNO3)=0.1 mmol/L 
New
Nitric acid standard titration solution

$15.00

Sodium chloride standard titration solution c(NaCl)=1.41 mol/L
Sodium chloride standard titration solution c(NaCl)=1.41 mol/L
c(NaCl)=1.41 mol/L 
New
Sodium chloride standard titration solution

$15.00

Standard titration solution of sodium nitrite c(NaNO2)=1.2 mol/L
Standard titration solution of sodium nitrite c(NaNO2)=1.2 mol/L
c(NaNO2)=1.2 mol/L 
New
Standard titration solution of sodium nitrite

$22.00

Zinc chloride standard titration solution c(ZnCl2)=2 mol/L
Zinc chloride standard titration solution c(ZnCl2)=2 mol/L
c(ZnCl2)=2 mol/L 
New
Zinc chloride standard titration solution

$30.00

Ferrous ion standard solution c(Fe2+)=40 μg/mL
Ferrous ion standard solution c(Fe2+)=40 μg/mL
c(Fe2+)=40 μg/mL 
New
Ferrous ion standard solution

$22.00

Residual chlorine standard solution 5 mg/L
Residual chlorine standard solution 5 mg/L
5 mg/L 
New
Residual chlorine standard solution

$30.00

Chlorine ion standard solution c(Cl-)=1000 μg/L
Chlorine ion standard solution c(Cl-)=1000 μg/L
c(Cl-)=1000 μg/L 
New
Chlorine ion standard solution

$15.00

Fluoride standard solution for impurity determination c(F-)=5000 mg/L
Fluoride standard solution for impurity determination c(F-)=5000 mg/L
c(F-)=5000 mg/L 
New
Fluoride standard solution for impurity determination

$18.00

Fluoride standard solution for impurity determination c(F-)=10000 mg/L
Fluoride standard solution for impurity determination c(F-)=10000 mg/L
c(F-)=10000 mg/L 
New
Fluoride standard solution for impurity determination

$22.00

Fluoride standard solution for impurity determination c(F-)=15000 mg/L
Fluoride standard solution for impurity determination c(F-)=15000 mg/L
c(F-)=15000 mg/L 
New
Fluoride standard solution for impurity determination

$22.00

Fluoride standard solution for impurity determination c(F-)=20000 mg/L
Fluoride standard solution for impurity determination c(F-)=20000 mg/L
c(F-)=20000 mg/L 
New
Fluoride standard solution for impurity determination

$22.00

Fluorine standard solution c(F-)=0.00001 mol/L
Fluorine standard solution c(F-)=0.00001 mol/L
c(F-)=0.00001 mol/L 
New
Fluorine standard solution

$0.00

Phenolphthalein indicator solution (C20H14O4)=1%(wt)
Phenolphthalein indicator solution (C20H14O4)=1%(wt)
(C20H14O4)=1%(wt) 
New
Phenolphthalein indicator solution

$11.00

Phenolphthalein indicator (C20H14O4)=0.05%(wt)
Phenolphthalein indicator (C20H14O4)=0.05%(wt)
(C20H14O4)=0.05%(wt) 
New
Phenolphthalein indicator

$11.00

Bromothymol blue water solution c(C27H28Br2O5S)=100 μg/mL(溶剂：纯水)
Bromothymol blue water solution c(C27H28Br2O5S)=100 μg/mL(溶剂：纯水)
c(C27H28Br2O5S)=100 μg/mL(溶剂：纯水) 
New
Bromothymol blue water solution

$22.00

Methyl red indicator solution 0.225 g/L,2:1
Methyl red indicator solution 0.225 g/L,2:1
0.225 g/L,2:1 
New
Methyl red indicator solution

$15.00

Bromocresol green indicator solution (C21H14Br4O5S)=2%(wt)
Bromocresol green indicator solution (C21H14Br4O5S)=2%(wt)
(C21H14Br4O5S)=2%(wt) 
New
Bromocresol green indicator solution

$15.00

Thymol phenolphthalein indicator liquid (C28H30O4)=0.5%(wt)
Thymol phenolphthalein indicator liquid (C28H30O4)=0.5%(wt)
(C28H30O4)=0.5%(wt) 
New
Thymol phenolphthalein indicator liquid

$15.00

starch indicator c[(C6H10O5)n]=1 g/L
starch indicator c[(C6H10O5)n]=1 g/L
c[(C6H10O5)n]=1 g/L 
New
starch indicator

$15.00

Starch Indicator [(C6H10O5)n]=0.1%(wt)
Starch Indicator [(C6H10O5)n]=0.1%(wt)
[(C6H10O5)n]=0.1%(wt) 
New
Starch Indicator

$15.00

Sodium borate buffer solution pH=10.5(25 ℃)
Sodium borate buffer solution pH=10.5(25 ℃)
pH=10.5(25 ℃) 
New
Sodium borate buffer solution

$22.00

sodium acetate buffer 10 mM,pH=5.5(25 ℃)
sodium acetate buffer 10 mM,pH=5.5(25 ℃)
10 mM,pH=5.5(25 ℃) 
New
sodium acetate buffer

$22.00

sodium acetate buffer 10 mM,pH=4.5(25 ℃)
sodium acetate buffer 10 mM,pH=4.5(25 ℃)
10 mM,pH=4.5(25 ℃) 
New
sodium acetate buffer

$22.00

sodium acetate buffer 10 mM,pH=4.0(25 ℃)
sodium acetate buffer 10 mM,pH=4.0(25 ℃)
10 mM,pH=4.0(25 ℃) 
New
sodium acetate buffer

$22.00

Borax buffer solution c(NaOH)=10 g/L,c(Na2B4O7)=40 g/L
Borax buffer solution c(NaOH)=10 g/L,c(Na2B4O7)=40 g/L
c(NaOH)=10 g/L,c(Na2B4O7)=40 g/L 
New
Borax buffer solution

$22.00

Tris-Glycine buffer solution c(CH4N2O)=8 mol/L,c(EDTA)=3 mmol/L,pH=8.0(25 ℃)(含1%SDS)
Tris-Glycine buffer solution c(CH4N2O)=8 mol/L,c(EDTA)=3 mmol/L,pH=8.0(25 ℃)(含1%SDS)
c(CH4N2O)=8 mol/L,c(EDTA)=3 mmol/L,pH=8.0(25 ℃)(含1%SDS) 
New
Tris-Glycine buffer solution

$30.00

Acetic acid buffer solution 0.02 M,pH=6.0(25 ℃)
Acetic acid buffer solution 0.02 M,pH=6.0(25 ℃)
0.02 M,pH=6.0(25 ℃) 
New
Acetic acid buffer solution

$22.00

Borate standard buffer solution pH=9.18(25℃)
Borate standard buffer solution pH=9.18(25℃)
pH=9.18(25℃) 
New
Borate standard buffer solution

$30.00

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Hot Products

Quality verified by over 50,000 users, high quality and low price

Copper sulfate solution c(CuSO4)=20 g/L
Copper sulfate solution c(CuSO4)=20 g/L
c(CuSO4)=20 g/L 
Hot
Copper sulfate solution

$8.00

Silver nitrate standard titration solution c(AgNO3)=0.1 mol/L
Silver nitrate standard titration solution c(AgNO3)=0.1 mol/L
c(AgNO3)=0.1 mol/L 
Hot
Silver nitrate standard titration solution

$33.00

Sulfuric acid standard titration solution c(1/2H2SO4)=0.1 mol/L
Sulfuric acid standard titration solution c(1/2H2SO4)=0.1 mol/L
c(1/2H2SO4)=0.1 mol/L 
Hot
Sulfuric acid standard titration solution

$9.00

Sodium hydroxide standard titration solution c(NaOH)=0.1 mol/L
Sodium hydroxide standard titration solution c(NaOH)=0.1 mol/L
c(NaOH)=0.1 mol/L 
Hot
Sodium hydroxide standard titration solution

$7.00

Dimethyl yellow indicator solution 中国药典,1 g/L
Dimethyl yellow indicator solution 中国药典,1 g/L
中国药典,1 g/L 
Hot
Dimethyl yellow indicator solution

$11.00

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