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Ammonium Molybdate or Ammonium Heptamolybdate USP BP IP Pure AR LR ACS Analytical Reagent FCC Food Grade Manufacturers, SDS MSDS Sheet
Ammonium heptamolybdate is an odourless crystalline compound ranging in colour from white to yellow-green. It is usually encountered as the tetrahydrate, whose chemical formula is (NH4)6Mo7O24·4H2O. It is often referred to as ammonium paramolybdate or simply as ammonium molybdate, although ammonium molybdate can also refer to ammonium orthomolybdate, (NH4)2MoO4, and several other compounds.
Ammonium heptamolybdate or Hexa ammonium molybdate CAS Number 12027-67-7, 12054-85-2 (tetrahydrate), EINECS EC Number 234-320-9, HS Code ---**, Molecular Weight 1163.9 g/mol 1235.86 g/mol (tetrahydrate), Molecular Formula: (NH4)6Mo7O24
We also offer: Ammonium Molybdate CAS Number 13106-76-8, EINECS EC Number 236-031-3, HS Code ---**; Molecular Weight 196.01, Molecular Formula: (NH4)2MoO4
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MSDS Sheet of Ammonium Molybdate or Heptamolybdate Manufacturers
Specifications of Commercial Pure Ammonium Molybdate Dihydrate:
(NH4)6Mo7O24-4H2O -- 1235.86 -- 12054-85-2
Appearance: White Crystalline Powder with slight greenish yellow tinge
Assay: 99% minimum
MoO3 content: >80%
Mo content: >53.25%
Sulfate: 0.005% maximum
Lead: 0.001% maximum
Copper: 0.001% maximum.
Ammonium Molybdate USP
Molybdate (Mo7O24 6 ), hexaammonium, tetrahydrate.
Hexaammonium molybdate tetrahydrate [12054-85-2].
Ammonium Molybdate contains not less than 99.3 percent and not more than 101.8 percent of (NH4)6Mo7O244H2O.
Identification: Dissolve 0.6 g of it in 1.4 mL of water and 1.45 mL of ammonium hydroxide. Cool this mixture, and add slowly, with mixing, 7.2 mL of a well-cooled mixture of 3.2 mL of nitric acid and 4 mL of water. Allow to stand for 24 to 48 hours, and filter through a sintered-glass filter. To 5 mL of the filtrate add 2 mL of dibasic sodium phosphate TS: a yellow precipitate is formed, and it is soluble in an excess of 6 N ammonium hydroxide.
Insoluble substances: Dissolve 20 g in 200 mL of water in a beaker, heat to boiling, cover, and heat on a steam bath for 1 hour. Filter the hot solution through a tared filtering crucible, wash the insoluble residue with hot water, and dry at 105 for 2 hours: the weight of the residue so obtained does not exceed 1 mg (0.005%).
Chloride: Maximum 0.002%.
Limit of nitrate: To pass the test.
Sulfate: Maximum 0.02%.
Arsenate, phosphate, and silicate: To pass the test.
Phosphate: Maximum 5 ppm.
Magnesium and alkali salts: Maximum 0.02%.
Heavy metals: The limit is 10 µg per g.
Assay: Dissolve about 1 g of Ammonium Molybdate, accurately weighed, in a mixture of 10 mL of water and 1 mL of ammonium hydroxide in a 250-mL volumetric flask, dilute with water to volume, and mix. Filter the solution, and transfer 50.0 mL of the filtrate to a 600-mL beaker. Add 250 mL of water, 20 g of ammonium chloride, 15 mL of hydrochloric acid, and 0.15 mL of methyl orange TS, heat nearly to boiling, and add 18 mL of lead acetate TS. To the hot solution add, slowly and with constant stirring, a saturated solution of ammonium acetate until the color turns yellow, and then add 15 mL of lead acetate TS. Cover the beaker, and heat just below the boiling temperature until the precipitate has settled. Filter through a tared, porous porcelain crucible, wash with seven or eight successive portions of a mixture of water, saturated ammonium acetate solution, and nitric acid (890:100:10), and finally wash with three successive portions of hot water. Ignite to constant weight at 560C to 625C. Each mg of the lead molybdate so obtained is equivalent to 0.4809 mg of (NH4)6Mo7O244H2O.
Ammonium Molybdate Tetrahydrate ACS AR Analytical Reagent grade
Ammonium Heptamolybdate Tetrahydrate
(NH4)6Mo7O24 · 4H2O
Formula Wt 1235.86
CAS Number 12027-67-7
Assay (as MoO3) 81.0-83.0%
Insoluble matter 0.005% Chloride (Cl) 0.002% Nitrate (NO3) Passes test Arsenate, phosphate, and silicate (as SiO2) 0.001% Phosphate (PO4) 5 ppm Sulfate (SO4) 0.02% Heavy metals (as Pb) 0.001% Magnesium (Mg) 0.005% Potassium (K) 0.002% Sodium (Na) 0.01%
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Last : 13 February, 2018
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Ammonium Molybdate SDS MSDS Sheet, Material Safety Data Sheet
Section 1: Chemical Product and Company Identification
Product Name: Ammonium Molybdate 13106-76-8 or Ammonium Molybdate Tetrahydrate (Molybdic acidammonium salttetrahydrate, Ammonium heptamolybdatetetrahydrate)12054-85-2
CAS-No. : 13106-76-8 or 12054-85-2 or 12027-67-7
EINECS EC-Number: 236-031-3
Use of the substance/mixture: For laboratory and industrial use only.
Suppliers: As per letterhead.
Section 2: Hazards Identification
GHS, Globally Harmonized System Classification in accordance with 29 CFR 1910
Classification according to Regulation (EC) No 1272/2008:
Not a hazardous substance or mixture according to Regulation (EC) No. 1272/2008.
This substance is not classified as dangerous according to Directive 67/548/EEC.
Labeling according to GHS & Regulation (EC) No 1272/2008
GHS Label Elements
Signal Word: None
Hazards not otherwise classified (HNOC):
May causes mild skin irritation.
May causes mild eye irritation.
P261: Avoid breathing dust/fume/gas/mist/vapors/spray.
P262: Do not get in eyes, on skin, or on clothing.
P281: Use personal protective equipment as required.
P302+P352 - IF ON SKIN: Wash with plenty of soap and water.
P303+P361+P353 - IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
P305 + P351 + P338 - IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
OSHA Hazards: No known OSHA hazards.
Section 3: Composition and Information on Ingredients
Name: Ammonium Molybdate
Molecular Formula : H8MoN2O4
Molecular weight : 196,01 g/mol
CAS Number : 13106-76-8
EINECS EC-Number: 236-031-3
Name: Ammonium Molybdate Tetrahydrate
Synonyms : Molybdic acidammonium salttetrahydrate, Ammonium heptamolybdatetetrahydrate
Formula: H24Mo7N6O24 · 4H2O
Molecular Weight: 1.235,86 g/mol
CAS-No.: 12054-85-2 (dried is 12027-67-7)
Section 4: First Aid Measures
Always seek medical advice after the first aid treatment.
Skin: Wash off with soap and plenty of water.
Eyes: Wash eyes with plenty of water for at least 15 minutes, lifting lids occasionally. Seek Medical Aid.
Inhalation: Remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Ingestion: Never give anything by mouth to an unconscious person.
Section 5: Fire and Explosion Data
Flammability of the Product: Non-flammable.
Auto-Ignition Temperature: Not applicable.
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: Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
Special hazards arising from the substance or mixture: nitrogen oxides (NOx), Molybdenum oxides.
Advice for firefighters: Wear self contained breathing apparatus for firefighting if necessary.
Section 6: Accidental Release Measures
Small Spill: Use appropriate tools to put the spilled solid in a convenient waste disposal container. Finish cleaning by spreading water on the contaminated surface and dispose of according to legal requirements.
Large Spill: Avoid dust formation. Avoid breathing vapors, mist or gas. Use a shovel to put the material into a convenient waste disposal container. Do not let product enter drains. Finish cleaning by spreading water on the contaminated surface and allow to evacuate through the sanitary system.
Section 7: Handling and Storage
Precautions: Do not breathe dust or mist. Keep away from incompatibles such as oxidizing agents, acids.
Storage: Keep container of tightly closed. Keep container in a cool, well-ventilated area.
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: Safety glasses. 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.
Components CAS-No. Value Control parameters Basis
Ammonium molybdate(VI) 13106-76-8 TWA 5 mg/m3 1 USA. OSHA.
TWA 0.5 mg/m3 USA. ACGIH (TLV)
Section 9: Physical and Chemical Properties
Physical state and appearance: Solid. crystals.
Color: Colorless. White.
Taste: Not available.
Decomposition Temperature: 190 °C for Tetrahydrate
pH (1% soln/water): Not available.
Melting Point: Not available.
Specific Gravity: 2.5 for Tetrahydrate (Water = 1)
Solubility: Soluble in cold water.
Section 10: Stability and Reactivity Data
Stability: Stable under the condition of storage.
Conditions of Instability: Incompatible materials
Incompatibility with various substances: Reactive with oxidizing agents, acids.
Polymerization: Will not occur.
Section 11: Toxicological Information
Toxicity to Animals:
Ammonium Molybdate Tetrahydrate
LD50 Oral - rat: > 2.000 mg/kg
LC50 Inhalation - rat: 4 h - 5 mg/l
LD50 Dermal - rabbit: > 2.000 mg/kg
Carcinogenicity: Not listed by ACGIH, IARC, NTP, or CA Prop 65.
Section 12: Ecological Information
Toxicity to fish: LC0 - Oncorhynchus mykiss (rainbow trout) - 320 mg/l - 96 h
LC50 - Oncorhynchus mykiss (rainbow trout) - 420 mg/l - 96 h
Toxicity to daphnia and other aquatic invertebrates: EC50 - Daphnia magna (Water flea) - 140 mg/l - 48 h
Toxicity to algae: EC50 - Desmodesmus subspicatus (green algae) - 41 mg/l - 72 h
Ecotoxicity: Not available
This substance/mixture contains no components considered to be either persistent, bioaccumulative and toxic (PBT), or very persistent and very bioaccumulative (vPvB) at levels of 0.1% or higher.
BOD5 and COD: Not available.
Section 13: Disposal Considerations
Waste Disposal: Waste must be disposed of in accordance with federal, state and local environmental control regulations.
Section 14: Transport Information
DOT (USA) & ADR/RID : Not dangerous goods
IMDG: Not dangerous goods
IATA: Not dangerous goods
Section 15: Other Regulatory Information
Ammonium Molybdate Tetrahydrate (12054-85-2)
USA TSCA: Listed on the United States TSCA (Toxic Substances Control Act) inventory
SARA 302: No chemicals in this material are subject to the reporting requirements of SARA Title III, Section 302.
SARA 313: This material does not contain any chemical components with known CAS numbers that exceed the threshold (De Minimis) reporting levels established by SARA Title III, Section 313.
SARA 311/312 Hazards: Acute Health Hazard
Massachusetts Right To Know Components: No components are subject to the Massachusetts Right to Know Act.
Pennsylvania Right To Know Components: Ammonium molybdenum oxide tetrahydrate, CAS-No. 12054-85-2
New Jersey Right To Know Components: Ammonium molybdenum oxide tetrahydrate, CAS-No. 12054-85-2
California Prop. 65 Components: This product does not contain any chemicals known to State of California to cause cancer, birth defects, or any other reproductive harm.
CANADA WHMIS Classification: Class D Division 2 Subdivision B - Toxic material causing other toxic effects. Listed on the Canadian Ingredient Disclosure List
EINECS EC-Number: 236-031-3
HMIS (Perceived): Health Hazard: 1, Fire Hazard: 0, Reactivity: 0
NFPA (Perceived): Health: 1, Flammability: 0, Reactivity: 0
Section 16 - Additional Information
DISCLAIMER: The information and recommendations set forth herein (hereinafter "Information") are presented in good faith and believed correct as of the date hereof. It is compiled from various sources and it is not necessarily all inclusive nor fully adequate in every circumstance. In addition, these suggestions should not be confused with nor followed in violation of applicable laws, regulations, rules or insurance requirements applicable. This MSDS sheet is intended only as a guide to the appropriate precautionary handling of the material by a properly trained person using this product. Individuals receiving the information must exercise their independent judgment in determining its appropriateness for a particular purpose.