Basic Info.
Product Description
Product Description
Chemical Name: Zinc Sulfate
Molecular Formula: ZnSO4·7H2O
Molecular Weight: 287.54 (Heptahydrate)
CAS: 7446-20-0 (7H2O)
Character: Colorless or white crystalline powder, odorless. Effloresces in air. Acid hydrometer is 1.957 (25/4) to litmus. Melting point is 100°C. Soluble in water and glycerol, insoluble in ethanol. Light toxicity, loses crystal water at 280°C.
This Zinc Sulfate Heptahydrate is meticulously manufactured by Nanjing Jiayi Sunway Chemical Co., Ltd. It is a versatile compound with various industrial applications due to its unique properties.
Nanjing Jiayi Sunway Chemical Co., Ltd.
Product: Food Grade Sodium Metabisulfite
Usage: Our food grade sodium metabisulfite is versatile, serving as food additives, animal feed, printing and dyeing agent, and timber preservative. It is also commonly used as an analytical reagent.
Packing: Each 25kg bag of our product is carefully packed with a polythene inner layer and a compound plastic woven outer layer to ensure quality and freshness.
Storage and Transport: To maintain its integrity, store our sodium metabisulfite in a dry and ventilated warehouse, away from water and moisture during transport. Handle with care during unloading to prevent bag damage. Store separately from poisonous substances for safety.
| Index | Specification | GB25579-2010 | FCC,1996 | ||
| content w/% | ZnSO4.H2O | Content | ZnSO4.H2O | 99.0 | 99.0 |
| ZnSO4.7H2O | ZnSO4.7H2O | 99.0 | 99.0 | ||
| (As), mg/kg ≤ | As | 0.0003 | -- | ||
| alkali metal w/% ≤ | Alkali metal | 0.50 | 0.5 | ||
| acidity | PH | pass test | normal | ||
| (Se), mg/kg ≤ | Se | 0.003 | 0.003 | ||
| (Hg), mg/kg ≤ | Hg | 0.0001 | 0.0005 | ||
| (Pb), mg/kg ≤ | Pb | 0.0004 | 0.001 | ||
| (Cd), mg/kg ≤ | Cd | 0.0002 | 0.0005 | ||
