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SODIUM DICHROMATE (Dihydrate)
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Sodium Dichromate (Dihydrate)

Synonyms : Sodium Bichromate

CAS No

7789-12-0

Molecular Formula

Na2Cr2O7.2H2O

Molecular Weight

298.0

Description

Orange red Crystals or Granules

Grade

Technical*

SPECIFICATION

Assay

98.0% MIN

*Also available Pure, Pharma passing, LR, AR and ACS Grade

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Material Safety Data Sheet

Sodium Dichromate (Dihydrate)

 

Section 1: Chemical Product and Company Identification

 

Chemical Name: Sodium Dichromate (Dihydrate)

 

CAS#: 7789-12-0

RTECS: HX7700000

TSCA: TSCA 8(b) inventory: No products were found.

CI#: Not available.

Synonym: Sodium Dichromate, dihydrate; Sodium

Bichromate dihydrate

Chemical Formula: Na2-Cr2-O7.2H2O

 

Contact Information:

 

Vishnupriya Chemicals Pvt. Ltd.

 

Office No. 7, Meridian apartments

Lake Hills Road, New MLA Quarters

Basheerbagh, Hyderabad 63,  A.P

Tel :  040 - 23225550

Fax : 040 23223177

Email : info@vishnupriya.in

Website : www.vishnupriya.in

 

Section 2: Composition and Information on Ingredients

 

Composition:

 

Name

CAS #

% by Weight

Sodium Dichromate (Dihydrate)

7789-12-0

100

 

Toxicological Data on Ingredients:  Sodium dichromate LD50: Not available. LC50: Not available.

 

Section 3: Hazards Identification

 

Potential Acute Health Effects:

Very hazardous in case of skin contact (irritant, sensitizer), of eye contact (irritant), of ingestion, . Hazardous in case of skin contact (corrosive, permeator), of eye contact (corrosive), of inhalation (lung irritant). Prolonged exposure may result in skin burns and ulcerations. Over-exposure by inhalation may cause respiratory irritation.

Severe over-exposure can result in death. Inflammation of the eye is characterized by redness, watering, and itching. Skin inflammation is characterized by itching, scaling, reddening, or, occasionally, blistering.

 

Potential Chronic Health Effects:

CARCINOGENIC EFFECTS: Classified A1 (Confirmed for human.) by ACGIH.

MUTAGENIC EFFECTS: Mutagenic for bacteria and/or yeast.

TERATOGENIC EFFECTS: Not available.

DEVELOPMENTAL TOXICITY: Not available.

The substance may be toxic to kidneys, liver, heart, upper respiratory tract. Repeated or prolonged exposure to the substance can produce target organs damage. Repeated exposure to a highly toxic material may produce general deterioration of health by an accumulation in one or many human organs.

 

Section 4: First Aid Measures

 

Eye Contact:

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 immediately.

 

Skin Contact:

In case of contact, immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Cover the irritated skin with an emollient. Cold water may be used. Wash clothing before reuse. Thoroughly clean shoes before reuse. Get medical attention immediately.

 

Serious Skin Contact:

Wash with a disinfectant soap and cover the contaminated skin with an anti-bacterial cream. Seek immediate medical attention.

 

Inhalation:

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

 

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. WARNING: It may be hazardous to the person providing aid to give mouth-to-mouth resuscitation when the inhaled material is toxic, infectious or corrosive. Seek immediate medical attention.

 

Ingestion:

If swallowed, do not induce vomiting unless directed to do so by medical personnel. Never give anything by mouth to an unconscious person. Loosen tight clothing such as a collar, tie, belt or waistband. Get medical attention immediately.

 

Serious Ingestion: Not available.

 

Section 5: Fire and Explosion Data

 

Flammability of the Product: Non-flammable.

 

Auto-Ignition Temperature: Not applicable.

 

Flash Points: Not applicable.

 

Flammable Limits: Not applicable.

 

Products of Combustion: Not available.

 

Fire Hazards in Presence of Various Substances: Flammable in presence of combustible materials

 

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.

Slightly explosive in presence of heat.

 

Fire Fighting Media and Instructions: Not applicable.

 

Special Remarks on Fire Hazards: It may ignite other combustibles on contact. When heated to decomposition it emits toxic fumes.

 

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. If necessary: Neutralize the residue with a dilute solution of sodium carbonate.

 

Large Spill:

Oxidizing material. Poisonous solid.

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 to reduce vapors. Prevent entry into sewers, basements or confined areas; dike if needed. Call for assistance on disposal. Neutralize the residue with a dilute solution of sodium carbonate. Be careful that the product is not present at a concentration level above TLV. Check TLV on the MSDS and with local authorities.

 

Section 7: Handling and Storage

 

Precautions:

Keep locked up.. Keep container dry. Keep away from heat. Keep away from sources of ignition. Keep away from combustible material.. Do not ingest. Do not breathe dust. Never add water to this product. In case of insufficient ventilation, wear suitable respiratory equipment. If ingested, seek medical advice immediately and show the container or the label. Avoid contact with skin and eyes. Keep away from incompatibles such as combustible materials, organic materials.

 

Storage:

Keep container tightly closed. Keep container in a cool, well-ventilated area. Separate from acids, alkalies, reducing agents and combustibles. See NFPA 43A, Code for the Storage of Liquid and Solid Oxidizers.

 

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.

 

Personal Protection:

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:

TWA: 0.1 (mg(CrO3)/m) [United Kingdom (UK)]

TWA: 0.05 (mg(Cr)/m) from ACGIH (TLV) [United States]

Consult local authorities for acceptable exposure limits.

 

Section 9: Physical and Chemical Properties

 

Physical state and appearance: Solid. (Deliquescent crystals solid.)

 

Odor: Odorless.

 

Taste: Not available.

 

Molecular Weight: 298 g/mole

 

Color: Reddish to Orange.

 

pH (1% soln/water): 4 [Acidic.]

 

Boiling Point: Not available.

 

Melting Point: Decomposition temperature: 400C (752F)

 

Critical Temperature: Not available.

 

Specific Gravity: Bulk density is 2.52 (Water = 1) @ 20 C or 2.348 @ 25

 

Vapor Pressure: Not applicable.

 

Vapor Density: Not available.

 

Volatility: Not available.

 

Odor Threshold: Not available.

 

Water/Oil Dist. Coeff.: Not available.

 

Ionicity (in Water): Not available.

 

Dispersion Properties: See solubility in water.

 

Solubility:

Easily soluble in cold water.

Insoluble in alcohol

 

Section 10: Stability and Reactivity Data

 

Stability: The product is stable.

 

Instability Temperature: Not available.

 

Conditions of Instability: Incompatible materials, moisture, dust generation.

 

Incompatibility with various substances: Reactive with combustible materials, organic materials.

 

Corrosivity: Non-corrosive in presence of glass.

 

Special Remarks on Reactivity: It may react violently with hydrazine.

 

Special Remarks on Corrosivity: Not available.

 

Polymerization: Will not occur.

 

Section 11: Toxicological Information

 

Routes of Entry: Absorbed through skin. Dermal contact. Eye contact. Inhalation. Ingestion.

 

Toxicity to Animals:

LD50: Not available.

LC50: Not available.

 

Chronic Effects on Humans:

CARCINOGENIC EFFECTS: Classified A1 (Confirmed for human.) by ACGIH.

MUTAGENIC EFFECTS: Mutagenic for bacteria and/or yeast.

May cause damage to the following organs: kidneys, liver, heart, upper respiratory tract.

 

Other Toxic Effects on Humans:

Very hazardous in case of skin contact (irritant, sensitizer), of ingestion, .

Hazardous in case of skin contact (corrosive, permeator), of eye contact (corrosive), of inhalation (lung irritant).

 

Special Remarks on Toxicity to Animals: Not available.

 

Special Remarks on Chronic Effects on Humans:

May affect genetic material (mutagenic).

May cause cancer

 

Special Remarks on other Toxic Effects on Humans:

Acute Potential Health Effects:

Skin: Can severely irritate and burn the skin.

Eyes: Can severely irritate and burn the eyes with possible eye damage.

Inhalation: Harmful if inhaled. Can irritate the nose, throat and lungs causing coughing, wheezing, and/or shortness of breath. May cause ulceration andperforation of the nasal septum if inhaled in large quantities.

Ingestion: Harmful if swallowed. Causes gastrointestinal tract irritation and burns. May affect liver and urinary system (kidney damage)

Chronic Potential Health Effects:

Skin: Prolonged or repeated skin contact can cause blisters, and deep ulcers and may cause skin sensitization, an allergic reaction.

Inhalation: Prolonged or repeated inhalation may cause asthma-like allergy. Future exposures can cause asthma attacks with shortness of breath, wheezing, cough, and/or chest tightness.

Ingestion: Repeated or prolonged ingestion may cause kidney damage and affect the liver.

 

Section 12: Ecological Information

 

Ecotoxicity: Not available.

 

BOD5 and COD: Not available.

 

Products of Biodegradation:

Possibly hazardous short term degradation products are not likely. However, long term degradation products may arise.

 

Toxicity of the Products of Biodegradation: The products of degradation are less toxic than the product itself.

 

Special Remarks on the Products of Biodegradation: Not available.

 

Section 13: Disposal Considerations

 

Waste Disposal: Waste must be disposed of in accordance with federal, state and local environmental control regulations.

 

 

 



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