Sodium Molybdate (HCID 61424)

概要

Sodium molybdate (anhydrous) is an inorganic sodium salt having molybdate as the counterion. It has a role as a NMR chemical shift reference compound and a poison. It contains a molybdate.

名称と識別子

優先名称: Sodium Molybdate
IUPAC: disodium;dioxido(dioxo)molybdenum
現地名: モリブデン酸二ナトリウム
英語名: Sodium molybdate
分子式: MoNa2O4
分子量: 205.91714

名称と別名

Sodium molybdateDisodium molybdateSodium molybdate(VI)Natriummolybdatsodium molybdenum oxideMolybdic acid, disodium saltsodium molybdate (anhydrous)Na2MoO4Anhydric sodium molybdate948QAQ08I1Molybdate (MoO42-), disodium, (T-4)-Molybdenum (as sodium)

名称をさらに表示

モリブデン酸ジナトリウムオルトモリブデン酸ナトリウムモリブデン酸二ナトリウムモリブデン酸ニナトリウムナトリウムモリブデン酸モリブデン酸ナトリウムモリブデン酸ナトリウム ≥98%酸化ナトリウムモリブデン, 無水モリブデン酸ナトリウム, 無水, 98+%molybdicAnhydrous sodium molybdateSodium molybdatdisodiummolybdateSodiumMolybdateGrSodamidemolybdate

CHEBI:75215NSC-77389RefChem:887699231-551-77631-95-0Molybdate disodiumNatriummolybdat [German]Sodium molybdate (VAN)

データベース識別子

CAS: 13466-16-5、7631-95-0
PubChem CID: 61424
ChEBI: CHEBI:75215
UNII: 948QAQ08I1
EC Number: 231-551-7

物性

構造計算による物性

極性表面積: 80.3 Å²
水素結合供与体数: 0
水素結合受容体数: 4
回転可能結合数: 0
重原子数: 7
形式電荷: 0
複雑度: 62.2

実験および物理化学的性質

Chemical ClassesMetals -> Metals, Inorganic Compounds

Density · 2 件

3.78 g/cm³

~3.5 @25 °C

SolubilitySolubility in water, g/100ml at 100 °C: 84

Melting Point · 2 件

687 °C

686 °C

Physical Description · 3 件

Large Crystals; Dry Powder; Liquid; Liquid; Other Solid

White solid; [ICSC] Colorless crystalline solid; [Sigma-Aldrich MSDS]

WHITE POWDER.

物理化学的性質

融点: 687 °C · 687 °C (lit.)
比重(密度): 3.78 g/mL · 3.78 g/mL at 25 °C (lit.)
屈折率: 1.714 · 1.714
貯蔵温度: 4 °C, · Store at 4°C, protect from light, stored under nitrogen
溶解性: 20.6 mg/mL · insoluble in EtOH; insoluble in DMSO; ≥20.6 mg/mL in H2O
外見: 粉
比重: 3.28 · 3.28
色: 白い
臭い (Odor): 無臭
水溶解度: 水に溶けます。
比熱容量: 0.69 J/ · Cp(crystal): 0.69 J/(g·K), at 25℃
Merck: 14 · 14,8645
安定性: 安定。強力な酸化剤とは相容れない。
化粧品成分の機能: 防錆剤
InChI: 1S/Mo.2Na.4O/q;2*+1;;;2*-1
InChIKey: TVXXNOYZHKPKGW-UHFFFAOYSA-N
SMILES: [Na+].[Na+].[O-][Mo]([O-])(=O)=O
CAS データベース: 7631 · 7631-95-0(CAS DataBase Reference)
NISTの化学物質情報: sodium molybdate(VI)(7631-95-0)
EPAの化学物質情報: Disodium molybdate (7631-95-0)

化学的性質 · 2 件

化学的特性Sodium molybdate is the sodium salt of molybdic acid. It forms white, rhombic crystals that are sparingly soluble in water and insoluble in acetone. Crystallization from an alkaline aqueous solution (pH above 8) yields the dihydrate, which appears as white rhombohedral crystals with a relative density of 3.28. In this structure, the molybdate anion (MoO₄²⁻) exhibits a regular tetrahedral coordination. Upon heating to 100°C, the dihydrate loses two water molecules to form the anhydrous compound. The anhydrous form is readily soluble in water but insoluble in ethyl acetate.Gradually acidifying a sodium molybdate solution to lower its pH induces the polymerization of molybdate ions, forming various polymolybdates such as sodium dimolybdate, trimolybdate, tetramolybdate, octamolybdate, and decamolybdate.Although molybdenum can form compounds in oxidation states from zero to +6, only the hexavalent molybdate compounds are stable. The primary ore for producing molybdate raw materials is molybdenite (MoS₂).

化学性质ナトリウムモリブデートはその溶解度が高いことで知られています水溶液中ではモリブデートイオンMoO42として存在しこれが多くの化学反応で重要な役割を果たしますこの化合物は中性からアルカリ性の条件下で安定しており酸性条件下ではさらに反応性が高まりますナトリウムモリブデートの熱安定性も高く多くの工業プロセスで必要とされる温度範囲において安定した性質を保持します

安全と法規制

GHS分類

GHS Classification · 6 件

This chemical does not meet GHS hazard criteria for 64.5% (493 of 764) of all reports.

Warning

H315 (33.1%): Causes skin irritation [Warning Skin corrosion/irritation]

P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P317, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 764 reports by companies from 13 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Danger

危険有害性情報

Regulatory Information · 4 件

Chemical: Molybdic acid (H2MoO4), disodium salt

Molybdate (MoO42-), sodium (1:2), (T-4)- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Molybdate (MoO42-), sodium (1:2), (T-4)- are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)

Status: Active Update: 03-03-2023 https://echa.europa.eu/registration-dossier/-/registered-dossier/15826

Sodium molybdate: Non hazardous

Other Safety InformationIMAP assessments - Molybdic acid (H2MoO4), disodium salt: Human health tier I assessment

Fire HazardsCombustible under specific conditions. Risk of fire and explosion on contact with magnesium.

Hazards Summary · 1 件

No developmental toxicity reported in 1972 study of hamsters; Molybdenum accumulation in reproductive tissues and histopathological testicular changes observed in male rats exposed to high doses for 60 days; [REPROTOX] Oral LD50 (rat) = 250 mg/kg also reported; Causes fatty liver degeneration, and changes in renal tubules in oral lethal-dose studies of dogs, guinea pigs, and rats; Causes abnormal liver function tests, kidney changes, weight loss, normocytic anemia, and other musculoskeletal changes in oral studies of rats; [RTECS] Aerosol causes eye and respiratory tract irritation; Chronic exposure may have effects on the respiratory tract; Possible human carcinogen; [ICSC] A skin and strong eye irritant; Toxic by inhalation; [Sigma-Aldrich MSDS] See Molybdenum.

Chemical DangersDecomposes on heating. This produces toxic fumes including sodium oxide. Reacts violently with halogens. This generates fire and explosion hazard.

Hazard Classes and Categories · 2 件

Skin Irrit. 2 (33.1%)

Acute toxicity (Oral) - Category 3

安全と保護具

Fire FightingIn case of fire in the surroundings, use appropriate extinguishing media.

First Aid Measures · 4 件

Fresh air, rest. Refer for medical attention.

Remove contaminated clothes. Rinse and then wash skin with water and soap.

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

Give one or two glasses of water to drink. Refer for medical attention .

Safe StorageSeparated from strong oxidants and halogens.

Spillage DisposalSweep spilled substance into covered containers. Personal protection: particulate filter respirator adapted to the airborne concentration of the substance.

Eye PreventionWear safety goggles or eye protection in combination with breathing protection if powder.

Fire PreventionNO open flames.

毒性情報

Adverse EffectsOccupational hepatotoxin - Secondary hepatotoxins: the potential for toxic effect in the occupational setting is based on cases of poisoning by human ingestion or animal experimentation.

Exposure RoutesThe substance can be absorbed into the body by inhalation.

Signs and Symptoms · 4 件

Cough. Sore throat.

Redness.

Abdominal pain. Nausea. Vomiting. Diarrhoea.

ICSC Environmental DataEnvironmental effects from the substance have not been investigated adequately.

Toxicity DataLC50 (rat) > 2,080 mg/m3/4hr

安全データ

wgk: 1
tsca: TSCA listed
rtecs: QA5075000
risk_code: 36/37/38
hazard_code: Xi
safety_code: 26-36
ストレージクラス: 13 - Non Combustible Solids

化学と産業

用途と製造

Uses · 2 件

Used to make pigments; Also used as a corrosion inhibitor, bath additive for finishing metals, reagent for alkaloids, and micronutrient; [Merck Index] Permitted for use as an inert ingredient in non-food pesticide products; [EPA]

Electroplating [Category: Plate]

U.S. Production2023: 7,000,000 - <8,500,000 lb

Consumer UsesOther

Industry UsesPigment

Household ProductsInformation on 65 consumer products that contain Sodium molybdate in the following categories is provided:

General Manufacturing Information · 2 件

Utilities

Molybdate (MoO42-), sodium (1:2), (T-4)-: ACTIVE

応用分野 · 5 件

解説モリブデン酸ナトリウムとは、に酸素原子が結合したとの塩です。多くの場合、モリブデン酸ナトリウム二水和物として存在しています。常温常圧で白色の粉末状固体です。とを混合することで得られます。モリブデン酸ナトリウムは労働安全衛生法で名称等を通知すべき有害物質に、PRTR法で第一種指定化学物質に指定されています。溶融マグネシウムと接触すると爆発するため、注意が必要です。

用途不凍液?防錆剤原料,無機顔料用発色剤、塩基性染料媒染剤、金属表面処理剤、肥料配合剤、窯業用副原料、医薬原料 (化学工業日報社)

使用Sodium Molybdate is used in method for preparing fermentation medium with reduced color and viscosity.

一般的な説明Sodium molybdate has corrosion resistant properties. On heating, it undergoes degradation and releases Na2O fumes.

使用用途モリブデン酸ナトリウムは、不凍液・防錆剤原料、無機顔料用発色剤、塩基性染料媒染剤、金属表面処理剤、窯業用副原料などに利用されます。また、モリブデンは根粒菌の窒素固定や硝酸還元、またビタミンCの合成に必要な元素であることから、モリブデン酸ナトリウムは植物にモリブデンを補うための肥料としても有用です。モリブデンが不足した土壌では、葉がよじれる症状などが見られるため、モリブデン酸ナトリウムの処方が効果的です。一方で、過剰に与えすぎると動物、特に牛に対し銅欠乏症を引き起こす可能性があるので、注意が必要です。

調製方法

製造方法モリブデン酸ナトリウムは、水和反応によって合成された歴史があります。現在では、50°Cから70°Cに熱した水酸化ナトリウム中に酸化モリブデン (VI) を溶かし、結晶化して濾過することで収率良く合成可能です。100°Cに加熱することで無水塩を得ることができます。

上流・下流製品情報

上流原料

モリブデン酸ビスアンモニウムモリブデン(VI)トリオキシド水酸化ナトリウム

下流製品

Molybdate red 207 Pigment Fast Rose Toner Molybdate Red 107 塩基性紫1 モリブデートオレンジ

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補足説明

定義ChEBI: Sodium molybdate (anhydrous) is an inorganic sodium salt having molybdate as the counterion. It has a role as a poison and a NMR chemical shift reference compound. It contains a molybdate.