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x'inhu l-MSDS tas-sodium hydrosulfite

Ħin: 2021-06-08 Viżti: 38

Material Safety Data Sheet Sodium dithionite MSDS

Section 1: Chemical Product and Company Identification

Product Name:Sodium dithionite

Synonym: Sodium hydrosulfite

Chemical Formula:Na2S2O4

Company Identification:

RANGDA CHEMICAL CO., LTD

NO.403 D-2 BUILDING(HI-TECH INDUSTRIAL PARK) NO.1986 TAISHAN ROAD, TIANYUAN DIST, ZHUZHOU, HUNAN, CHINA

For information call: +86-731-28813327

Emergency Number: +86-18670303664

Section 2: Composition and Information on Ingredients

Kompożizzjoni:

isemKAŻ #% by Weight
Sodiumhydrosulfite7775-14-688%

Toxicological Data on Ingredients:Sodiumdithionite: ORAL (LD50): Acute: >500 mg/kg [Rat]. DERMAL (LD50): Acute:

>10000 mg/kg [Rabbit].

Section 3: Hazards Identification

Potential Acute Health Effects:

Hazardous in case of eye contact (irritant), of ingestion. Slightly hazardous in case of skin contact (irritant), of inhalation.

Potential Chronic Health Effects:

CARCINOGENIC EFFECTS: Not available. MUTAGENIC EFFECTS: Not available. TERATOGENIC EFFECTS: Not available. DEVELOPMENTAL TOXICITY: Not available. Repeated or prolonged exposure is not known to aggravate medical condition.

Section 4: First Aid Measures

Kuntatt mal-għajnejn

Check for and remove any contact lenses. In case of contact, immediately flush eyes with plenty of water for at least 15 minutes. Cold water may be used. Get medical attention.

Kuntatt mal-Ġilda:

Wash with soap and water. Cover the irritated skin with an emollient. Get medical attention if irritation develops. Cold water may be used.

Serious Skin Contact:Not available.

Inalazzjoni:

If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical attention.

Serious Inhalation:

Evacuate the victim to a safe area as soon as possible. Loosen tight clothing such as a collar, tie, belt or waistband. If breathing is difficult, administer oxygen. If the victim is not breathing, perform mouth-to-mouth resuscitation. Seek medical attention.

Inġestjoni:

Do NOT induce vomiting unless directed to do so by medical personnel. Never give anything by mouth to an unconscious person. If large quantities of this material are swallowed, call a physician immediately. Loosen tight clothing such as a collar, tie, belt or waistband.

Serious Ingestion:Not available.

Section 5: Fire and Explosion Data

Flammability of the Product:Flammable.Auto-Ignition Temperature:Not available.Flash Points:Not available.

Flammable Limits:Not available.

Products of Combustion:Some metallic oxides.

Fire Hazards in Presence of Various Substances:

Highly flammable in presence of open flames and sparks, of heat. Slightly flammable to flammable in presence of moisture. Non-flammable in presence of shocks.

Explosion Hazards in Presence of Various Substances:

Risks of explosion of the product in presence of mechanical impact: Not available. Risks of explosion of the product in presence of static discharge: Not available.

Fire Fighting Media and Instructions:

Flammable solid. Spontaneously combustible material. Do not use water or foam. SMALL FIRE: Use DRY chemical powder. LARGE FIRE: Use DRY chemical powder. Use water spray or fog. Cool containing vessels with water jet in order to prevent pressure build-up, autoignition or explosion.

Special Remarks on Fire Hazards:

Burns slowly, about like sulfur. Heats spontaneously in contact with moisture and air. May ignite nearby combustible materials. Vigourously supports combustion. Sodium Dithionite + Sodium Chlorite causes ignition of the latter. Reacts on exposure to moist air form toxic and corrosive fumes with the generation of heat and risk of combustion.

Special Remarks on Explosion Hazards:Not available.

Section 6: Accidental Release Measures

Small Spill:Use appropriate tools to put the spilled solid in a convenient waste disposal container.

Large Spill:. 2

Spontaneously combustible solid. Oxidizing material. Stop leak if without risk. Do not get water inside container. Avoid contact with a combustible material (wood, paper, oil, clothing...). Keep substance damp using water spray. Do not touch spilled material. Use water spray curtain to divert vapor drift. Cover with dry earth, sand or other non-combustible material. Prevent entry into sewers, basements or confined areas. Prevent entry into sewers, basements or confined areas; dike if needed. Eliminate all ignition sources. Call for assistance on disposal.

Section 7: Handling and Storage

Prekawzjonijiet:

Keep away from heat. Keep away from sources of ignition. Keep away from direct sunlight or strong incandescent light. Ground all equipment containing material. Do not ingest. Do not breathe dust. Avoid contact with eyes. Avoid shock and friction. Wear suitable protective clothing. If ingested, seek medical advice immediately and show the container or the label. Keep away from incompatibles such as oxidizing agents, acids, moisture.

Ħażna:

Store in a segregated and approved area. Keep in a cool and ventilated area away from combustible materials. Keep container in a cool, well-ventilated area. Keep container tightly closed and sealed until ready for use. Separate from acids, alkalies, reducing agents and combustibles. Avoid all possible sources of ignition (spark or flame).

Section 8: Exposure Controls/Personal Protection

Engineering Controls:

Use process enclosures, local exhaust ventilation, or other engineering controls to keep airborne levels below recommended exposure limits. If user operations generate dust, fume or mist, use ventilation to keep exposure to airborne contaminants below the exposure limit.

Protezzjoni Personali:

Splash goggles. Lab coat. Dust respirator. Be sure to use an approved/certified respirator or equivalent. Gloves.

Personal Protection in Case of a Large Spill:

Splash goggles. Full suit. Dust respirator. Boots. Gloves. A self contained breathing apparatus should be used to avoid inhalation of the product. Suggested protective clothing might not be sufficient; consult a specialist BEFORE handling this product.

Exposure Limits:Not available.

Section 9: Physical and Chemical Properties

Physical state and appearance:Solid. (Solid powder.)

Odor:Characteristic. Sulfurous. (Slight.)

Taste:Not available.

Molecular Weight:174.11 g/mole

Color:White. Grayish white.

pH (1% soln/water):Not available.

Boiling Point:Not available.

Melting Point:Decomposition temperature: 20°C (68°F)

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