Company info
Board of Managers
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Company info |
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Board of Managers |
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| Description | |||
| Sodium Sulphite heptahydrate is produced in the form of a colourless or nearly colourless crystals. | |||
| Uses | |||
| Sodium Sulphite Heptahydrate is a convenient source of sulphur dioxide. For this reason it is a component of photographic developers, a food preservative, an aid in leather tanning, an oxygen scavenger in water treatment operations, and is used for removing residual chlorine after textile and paper bleaching processes ( an antichlor ). | |||
| Physico - chemical properties | |||
| Chemical formula | Na2SO3*7 H2O | ||
| Mol Wt. | 252.16 g/mol | ||
| Bulk density | 848-928 kg/m3 | ||
| Technical Specification | |||
| Assay Na2SO3*7H2O | min. 96 % | ||
| Water - insoluble matters | max 0,005 % | ||
| Chlorides ( as Cl ) | max 0,05 % | ||
| Na2S2O3*5H2O | max. 0,02 % | ||
| Heavy metals ( as Pb ) | max. 0,001 % | ||
| Iron | max. 0,001 % | ||
| Arsenic | max. 0,00005 % | ||
| NaHSO3 | does not contain | ||
| Carbonates ( Na2CO3 ) | max 0,2 % | ||
| Analysis made by BN-74/6191-135 | |||
| Packages | |||
| Double bags PE / PP holding 25 kg | |||
| For export and special requirements other types of packages can be supplied on request. | |||
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HEALTH AND SAFETY INFORMATION |
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| Warning | |||
| Persons suffering from asthma or other respiration problems should avoid any contact with or exposure to Sodium Sulphite Heptahydrate. | |||
| Handling Precautions | |||
| Wear goggles and dust mask when handling bulk quantities. Do not store near acids or oxidizing agents. Keep in dry and closed containers. | |||
| Hazards | |||
| Reacts with acids with liberation of sulphur dioxide (a toxic gas). Nitric acid may react violently. Reacts with oxidizing agents sometimes violently. Sodium Sulphite Heptahydrate is non-flammable, but will decompose in a fire with liberation of sulphur dioxide, a choking, toxic gas. Suitable fire extinguishers : Water. | |||
| Sodium Sulphite Heptahydrate is not a dangerous substance. | |||
| First Aid | |||
| Eyes: Wash out with water for at least15 minutes. | |||
| Mouth: Wash out with water, if the chemical has been swallowed give water, milk of magnesia or milk to drink. | |||
| Skin: Wash off with planty of water. | |||
| Inhalation: Remove the person out of the danger area to fresh air. Obtain medical attention. | |||
| Spillage | |||
| Sweep up spilled substance into plastic bag. Rinse up with water. | |||
| Guarantee period is one month from analysis (testing) date. | |||
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