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POTASSIUM CHROMATE
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Potassium Chromate

Synonyms : Chromic Acid, Dipotassium Chromate, Bipotassium Chromate,

Dipotassium Salt

CAS No

7789-00-6

Molecular Formula

K2CrO4

Molecular Weight

194.19

Description

Yellow Crystals to crystalline powder

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

Potassium Chromate

 

Section 1: Chemical Product and Company Identification

 

Chemical Name: Potassium Chromate

 

CAS#: 7789-00-6

RTECS: GB2940000

TSCA: TSCA 8(b) inventory: Potassium chromate

CI#: Not available.

Synonym: Bipotassium Chromate; Chromate of potass;

Dipotassium Chromate; Neutral potassium chromate;

Potassium chromate (VI)

Chemical Formula: K2CrO4

 

 

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

Potassium Chromate

7789-00-6

100

 

Toxicological Data on Ingredients:  Potassium chromate: ORAL (LD50): Acute: 180 mg/kg [Mouse].

 

Section 3: Hazards Identification

 

Potential Acute Health Effects:

Very hazardous in case of skin contact (irritant), of eye contact (irritant), of ingestion, . Hazardous in case of skin contact (sensitizer), of inhalation (lung irritant). Slightly hazardous in case of skin contact (corrosive, permeator), of eye contact (corrosive). 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, 1 (Proven for human.) by IARC.

MUTAGENIC EFFECTS: Mutagenic for mammalian somatic cells. Mutagenic for bacteria and/or yeast.

TERATOGENIC EFFECTS: Not available.

DEVELOPMENTAL TOXICITY: Not available.

The substance may be toxic to kidneys, lungs, liver, upper respiratory tract, skin, eyes.

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.

 

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.

 

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: combustible materia

 

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: Not applicable.

 

Special Remarks on Fire Hazards:

Non combustible.

May increase intensity of fire if in contact with combustible materials 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.

 

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. 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 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: 0.05 (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. (Granular solid. Crystals solid.)

 

Odor: Odorless.

 

Taste: Not available.

 

Molecular Weight: 194.19 g/mole

 

Color: Yellow.

 

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

 

Boiling Point: Not available.

 

Melting Point: 975C (1787F)

 

Critical Temperature: Not available.

 

Specific Gravity: 2.73 (Water = 1)

 

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, hot water.

 

Section 10: Stability and Reactivity Data

 

Stability: The product is stable.

 

Instability Temperature: Not available.

 

Conditions of Instability: Incompatible materials

 

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

 

Corrosivity: Non-corrosive in presence of glass.

 

Special Remarks on Reactivity:

Hydrazine, combustible, organic, or other readily oxidizable materials: wood, paper, sulfur, aluminum, plastics, chromic acid, chromates.

 

Special Remarks on Corrosivity: Not available.

 

Polymerization: Will not occur.

 

Section 11: Toxicological Information

 

Routes of Entry: Absorbed through skin. Inhalation. Ingestion.

Toxicity to Animals: Acute oral toxicity (LD50): 180 mg/kg [Mouse].

Chronic Effects on Humans:

CARCINOGENIC EFFECTS: Classified A1 (Confirmed for human.) by ACGIH, 1 (Proven for human.) by IARC.

MUTAGENIC EFFECTS: Mutagenic for mammalian somatic cells. Mutagenic for bacteria and/or yeast.

May cause damage to the following organs: kidneys, lungs, liver, upper respiratory tract, skin, eyes.

Other Toxic Effects on Humans:

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

Hazardous in case of skin contact (sensitizer), of inhalation (lung irritant).

Slightly hazardous in case of skin contact (corrosive, permeator), of eye contact (corrosive).

Special Remarks on Toxicity to Animals: Not available.

Special Remarks on Chronic Effects on Humans:

May cause adverse reproductive effects.

May affect genetic material (mutagenic).

May cause cancer

Special Remarks on other Toxic Effects on Humans:

Acute Potential Health Effects:

Skin: Causes severe irritation, and possible skin burns. Contact with broken skin may cause ulcers (chrome sores) and absorption, which may cause systemic poisoning affecting behavior/central nervous system, kidney and liver.

Absorption may also affect the gastrointestinal tract and cause nausea and vomiting.

Eyes: Causes severe irritation, blurred vision, redness, pain and possible eye burns. May cause conjunctivitis, ulceration, and corneal injury/abnormalities or blindess.

Inhalation: Corrosive. It is destructive to the tissues of the mucous membrane and the upper respiratory tract. It may cause severe irritation of the upper respiratory tract, mucous membranes, with pain, burns, and inflammation. It may cause burns to the respiratory , chemical bronchitis with coughing and difficulty in breathing, ulceration and perforation

of the nasal septum. Symptoms may include sore throat, coughing, shortness of breath, labored breathing. It may cause pulmonary sensitization or allergic asthma. Higher exposures may cause pulmonary edemas.

Ingestion: It can cause severe burns of the mouth, throat and stomach leading to death. Symptoms may include sore throat, nausea, vomiting, diarrhea, violent gastroenteritis, peripheral vascular collapse, dizziness, intense thirst, muscle cramps, shock, abnormal bleeding, fever, liver damage, and kidney damage (acute renal failure, toxic nephritis, albuminuria, necrosis in the kidney), violent gastrointestinal distress, possible methemoglobin formation, coma, and circulatory collapse.

Chronic Potential Health Effects:

Although rare, system effects on the blood, liver, and kidneys from industrial exposure have been reported. Principal toxic effects of chromates from occupational point of view are exerted on skin, nasal mucosa, eye, larynx, and lungs.

Signs and symptoms of chronic eye and skin contact may include lacrimation, conjunctivitis, eczematous contact dermatitis, penetrating ulcers that don't heal. Signs and symptoms of chronic inhalation may include perforation of the

nasal septum, congestion, chronic rhinitis, polyps of the upper respiratory tract, inflammation of the lungs, emphysema, tracheitis, bronchitis, pharyngitis, adhesions of the diaphragm, inflammaton of the larynx, respiratory irritations. Signs and symptoms of chronic ingestion are loss of appetite, nause, vomiting, inflammation of the liver or even acute hepatitis with jaundice, leukocytosis, leukopenia, monocytosis, and eoisinophilia.

 

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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