Sodium chromate tetrahydrate

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Sodium chromate tetrahydrate

Product Name: Sodium chromate tetrahydrate
CAS No.: 10034-82-9
Chemical Name: Sodium chromate tetrahydrate
Synonyms: DISODIUM CHROMATE;SodiumChromateReagent;SODIUM CHROMATE 4 H2O;SODIUM CHROMATE 4HYD XTL;SODIUMCHROMATE,TECH(BULK;SODIUMCHROMATE,CRYSTAL,CP;SODIUM CHROMATE, 4-HYDRATE;SODIUM CHROMATE TETRAHYDRAT;SODIUM CHROMATE TETRAHYDRATE;Disodium chromate tetrahydrate
CBNumber: CB7250491
Molecular Formula: CrH5NaO5
Formula Weight: 160.02
MOL File: 10034-82-9.mol

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Sodium chromate tetrahydrate Property

Melting point:: 792℃
Density: 2.73
solubility: slightly soluble in ethanol
form: Crystals
color: Yellow
PH: pH (10g/l, 25℃) : 8.0～10.0
Odor: Odorless
Water Solubility: Soluble in water.
Sensitive: Hygroscopic
Merck: 14,8601
Exposure limits: ACGIH: TWA 0.0002 mg/m3; STEL 0.0005 mg/m3 (Skin)
OSHA: Ceiling 0.1 mg/m3
NIOSH: IDLH 15 mg/m3; TWA 0.0002 mg/m3
Stability:: Stable. Incompatible with strong reducing agents, combustible materials, strong acids. Deliquescent.
CAS DataBase Reference: 10034-82-9(CAS DataBase Reference)
EPA Substance Registry System: Sodium chromate(VI), tetrahydrate (10034-82-9)

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Safety

Hazard Codes: T+,N
Risk Statements: 45-46-60-61-21-25-26-34-42/43-48/23-50/53
Safety Statements: 53-45-60-61
RIDADR: UN 3288 6.1/PG 2
WGK Germany: 3
RTECS: GB2958300
TSCA: Yes
HazardClass: 6.1
PackingGroup: II

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H301Toxic if swalloed

H312Harmful in contact with skin

H314Causes severe skin burns and eye damage

H317May cause an allergic skin reaction

H330Fatal if inhaled

H334May cause allergy or asthma symptoms or breathing difficulties if inhaled

H340May cause genetic defects

H350May cause cancer

H372Causes damage to organs through prolonged or repeated exposure

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 216623
Product name: Sodium chromate tetrahydrate
Purity: 99%
Packaging: 100g
Price: $57.2
Updated: 2024/03/01

Sigma-Aldrich

Product number: 216623
Product name: Sodium chromate tetrahydrate
Purity: 99%
Packaging: 500g
Price: $138
Updated: 2024/03/01

Alfa Aesar

Product number: 013453
Product name: Sodium chromate tetrahydrate, Reagent Grade
Packaging: 250g
Price: $63.65
Updated: 2024/03/01

Alfa Aesar

Product number: 013453
Product name: Sodium chromate tetrahydrate, Reagent Grade
Packaging: 1kg
Price: $196
Updated: 2023/06/20

Strem Chemicals

Product number: 93-1129
Product name: Sodium chromate tetrahydrate, 99+%
Packaging: 100g
Price: $33
Updated: 2024/03/01

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Sodium chromate tetrahydrate Chemical Properties,Usage,Production

Chemical Properties

yellow deliquescent crystals

Chemical Properties

Sodium cyanide is found as white granules, flakes or lumps. Sodium cyanide is shipped as pellets or briquettes. Odorless when dry. It absorbs water from air (is hygroscopic or deliquescent). Hydrogen cyanide gas released by sodium cyanide has a distinctive mild, bitter almond odor, but a large proportion of people cannot detect it; the odor does not provide adequate warning of hazardous concentrations.

Chemical Properties

Sodium chromate, including the hexahydrate, is yellow crystalline solids that can also be used in solution. Disodium dichromate (10588-01-9):

Uses

Corrosion inhibitor, pigment manufactureSodium chromate tetrahydrate is used as a corrosion inhibitor, wood preservative and an auxiliary in textile industry. It serves as an oxidant, which is used to prepare carboxylic acids and ketones from primary and secondary alcohols respectively. Further, it is used as a starting material to prepare other chromium compounds and as a catalyst in organic synthesis especially pharmaceuticals and agro chemicals.

Uses

Sodium chromate tetrahydrate can be used as an oxidant in organic synthesis and also as a carrier electrolyte in the capillary electrophoresis.

General Description

Odorless bright yellow deliquescent crystals. Aqueous solutions are alkaline.

Air & Water Reactions

Deliquescent. Water soluble.

Reactivity Profile

Sodium chromate tetrahydrate is a strong oxidizing agent. Incompatible with strong acids . Contact with combustible materials may lead to a fire. Toxic chromium oxide fumes may form in fire [USCG, 1999].

Fire Hazard

Literature sources indicate that Sodium chromate tetrahydrate is nonflammable.

Potential Exposure

Used to make dyes, inks, pigments, and other chromates; in leather tanning, a corrosion inhibitor in circulating water systems; metal treatment; a drilling mud additive; chemical intermediate for chromium catalysts; colorimetry, oxidizing agent; bleaching agent; an algicide, fungicide, insecticide; in wood preservation.

Shipping

UN3087 Oxidizing solid, toxic, n.o.s., Hazard Class: 5.1; Labels: 5.1-Oxidizer, 6.1-Poisonous materials, Technical Name Required. UN3085 Oxidizing solid, corrosive, n.o.s., Hazard Class: 5.1; Labels: 5.1-Oxidizer, 8-Corrosive material, Technical Name Required.

Purification Methods

Crystallise the chromate from hot water (0.8mL/g). It is deliquescent.

Incompatibilities

Sodium cyanide decomposes on contact with acids, acid salts, water, moisture, alcohols, and carbon dioxide, releasing highly toxic and flammable hydrogen cyanide gas. Aqueous solution is a strong base; it reacts violently with acid and is corrosive. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. Absorbs moisture from the air forming a corrosive syrup. Corrosive to active metals, such as aluminum, copper, and zinc. Under acid conditions, sarin hydrolyzes to form hydrofluoric acid.

Waste Disposal

Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform to EPA regulations governing storage, transportation, treatment, and waste disposal. In accordance with 40CFR165, follow recommendations for the disposal of pesticides and pesticide containers. Must be disposed properly by following package label directions or by contacting your local or federal environmental control agency, or by contacting your regional EPA office. Add strong alkaline hypochlorite and react for 24 hours. Then flush to sewer with large volumes of water.

Sodium chromate tetrahydrate Preparation Products And Raw materials

Raw materials

SODIUM DICHROMATE Sodium dichromate dihydrate Sodium hydroxide Aluminum slag

Preparation Products

Tartrazine Pale chrome yellow Middle chrome yellow Pigment Geen 7

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View Lastest Price from Sodium chromate tetrahydrate manufacturers

Shaanxi Dideu Medichem Co. Ltd

Product: Sodium chromate tetrahydrate 10034-82-9
Price: US $21.00/g
Min. Order: 1g
Purity: 99.0% min
Supply Ability: 100 tons min
Release date: 2021-05-25

Career Henan Chemical Co

Product: Sodium chromate tetrahydrate 10034-82-9
Price: US $1.00/KG
Min. Order: 1KG
Purity: 98%-99.9%
Supply Ability: 100kg
Release date: 2020-01-10

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10034-82-9

CrO42Na4H2O

Na2CrO44H2O

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Inorganic Salts

Synthetic Reagents

Inorganic Salts

Synthetic Reagents

chromate and dichromate salts