| 87313 |
Urea |
EP |
500g |
|
|
Urea
- CAS No.：57-13-6
- Chemical formula：NH2CONH2
- Chemical weight：60.06
| EP |
| Melting Point |
132~134℃ |
| Solubility(Turbidity) |
Clear to Slightly Hazy |
| Clarity of Solution(Ethanol) |
Colorless, Clear to Slightly Hazy |
| Ash(Sulfate) |
< 0.03% |
| Chloride(Cl) |
< 0.003% |
| Sulfate(SO4) |
< 0.005% |
| Reducing Substances |
Pass |
| Heavy Metals(as Pb) |
< 0.002% |
| Iron(Fe) |
< 0.002% |
|
| 82715 |
Xylene |
ACS |
500ml |
|
|
Xylene
- CAS No.：1330-20-7
- Chemical formula：C6H4(CH3)2
- Chemical weight：106.17
| ACS |
| Color(APHA) |
< 10 |
| Residue on Evaporation |
< 0.002% |
| Substances darkened by sulfuric acid |
Pass |
| Sulfide(S) |
< 0.003% |
| Water |
< 0.05% |
| Assay(GC) |
> 98.5% |
| Xylene isomers plus Ethylbenzene |
|
|
| 82715 |
Xylene |
ACS |
4L |
|
|
Xylene
- CAS No.：1330-20-7
- Chemical formula：C6H4(CH3)2
- Chemical weight：106.17
| ACS |
| Color(APHA) |
< 10 |
| Residue on Evaporation |
< 0.002% |
| Substances darkened by sulfuric acid |
Pass |
| Sulfide(S) |
< 0.003% |
| Water |
< 0.05% |
| Assay(GC) |
> 98.5% |
| Xylene isomers plus Ethylbenzene |
|
|
| 82713 |
Xylene |
EP |
500ml |
|
|
Xylene
- CAS No.：1330-20-7
- Chemical formula：C6H4(CH3)2
- Chemical weight：106.17
| EP |
| Water |
< 0.05% |
| Residue on Evaporation |
< 0.002% |
| Acid |
< 0.001% |
| Base |
< 0.001% |
| Thiophene |
Pass |
| Substances darkened by sulfuric acid |
Pass |
| Assay(GC) |
> 95.0% |
| Xylene isomers plus Ethylbenzene |
|
|
| 82713 |
Xylene |
EP |
4L |
|
|
Xylene
- CAS No.：1330-20-7
- Chemical formula：C6H4(CH3)2
- Chemical weight：106.17
| EP |
| Water |
< 0.05% |
| Residue on Evaporation |
< 0.002% |
| Acid |
< 0.001% |
| Base |
< 0.001% |
| Thiophene |
Pass |
| Substances darkened by sulfuric acid |
Pass |
| Assay(GC) |
> 98.5% |
| Xylene isomers plus Ethylbenzene |
|
|
| 83565 |
Zinc Acetate-2-hydrate |
ACS |
500g |
|
|
Zinc Acetate-2-hydrate
- CAS No.：5970-45-6
- Chemical formula：Zn(CH3COO)2?2H2O
- Chemical weight：219.49
| ACS |
| pH(5%, 25°C) |
6.0~7.0 |
| Insoluble matter |
< 0.005% |
| Chloride |
< 5ppm |
| Sulfate(SO4) |
< 0.005% |
| Calcium(Ca) |
< 0.005% |
| Magnesium(Mg) |
< 0.005% |
| Potassium(K) |
< 0.01% |
| Sodium(Na) |
< 0.05% |
| Iron(Fe) |
< 5ppm |
| Lead(Pb) |
< 0.002% |
| Assay |
98.0~101.0% |
|
| 12031 |
Zinc Iodide |
EP |
1Kg |
|
|
Zinc Iodide
- CAS No.：10139-47-6
- Chemical formula：ZnI
- Chemical weight：319.22
|
| 84053 |
Zinc Oxide |
EP |
500g |
|
|
Zinc Oxide
- CAS No.：1314-13-2
- Chemical formula：ZnO
- Chemical weight：81.38
| EP |
| Clarity of Solution(Acetic Acid) |
Clear to Slightly Hazy |
| Chloride(Cl) |
< 0.005% |
| Sulfur(S) |
< 0.03% |
| Lead(Pb) |
< 0.02% |
| Iron(Fe) |
< 0.002% |
| Substances not precipitated by ammonium sulfide |
< 0.4% |
| Arsenic(As) |
Pass |
| Assay |
> 99.0% |
|
| 89533 |
Zinc Sulfate-7-hydrate |
EP |
500g |
|
|
Zinc Sulfate-7-hydrate
- CAS No.：7446-20-0
- Chemical formula：ZnSO4?7H2O
- Chemical weight：287.54
| EP |
| Solubility(Turbidity) |
Clear |
| Free Acid |
Pass |
| Chloride(Cl) |
< 0.005% |
| Nitrate(NO3) |
< 0.01% |
| Substances not precipitated by (NH?)?S |
< 0.5% |
| Lead(Pb) |
< 0.003% |
| Iron(Fe) |
< 0.004% |
| Ammonium(NH4) |
< 0.004% |
| Assay |
> 99.0% |
|
| 89533 |
Zinc Sulfate-7-hydrate |
EP |
25Kg |
|
|
Zinc Sulfate-7-hydrate
- CAS No.：7446-20-0
- Chemical formula：ZnSO4.7H2O
- Chemical weight：287.54
| EP |
| Solubility(Turbidity) |
Clear |
| Free Acid |
Pass |
| Chloride(Cl) |
< 0.005% |
| Nitrate(NO3) |
< 0.01% |
| Substances not precipitated by (NH?)?S |
< 0.5% |
| Lead(Pb) |
< 0.003% |
| Iron(Fe) |
< 0.004% |
| Ammonium(NH4) |
< 0.004% |
| Assay |
> 99.0% |
|