기본 정보
- 표준 SMILES
O.O.[Na+].[Na+].[O]=[Cr](=[O])([O-])[O][Cr](=[O])(=[O])[O-]- InChIKey
JYDRNIYTFCBIFC-UHFFFAOYSA-N- 분자식
- Cr2H4Na2O9
- 평균 분자량
- 298 g/mol
- 단동위원소 질량
- 297.84608527
이름 및 식별자
- 우선 이름
- Sodium dichromate dihydrate
- IUPAC
- disodium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium;dihydrate
- 현지명
- 중크롬산나트륨
- 영어명
- Sodium dichromate dihydrate
- 분자식
- Cr2H5NaO8
- 분자량
- 260.01
이름 및 동의어
Sodium dichromate dihydrate7789-12-0Disodium dichromate dihydrateDTXSID603206152125XYY2AChromic acid (H2Cr2O7), disodium salt, dihydrateDICHROMIC ACID (H2Cr2O7), DISODIUM SALT, DIHYDRATEDTXCID4012061RefChem:1098784CCRIS 6344UNII-52125XYY2ANCGC00091922-02
이름 더 보기
나트륨비크롬산결정소디움디클로로메이트2H2O이크롬산나트륨나트륨디크롬산이수화물디나트륨디크롬산이수화물중크롬산나트륨(2수화물)중크롬산나트륨나트륨디크롬산이수화물소듐다이크로메이트,다이하이드레이트나트륨 이크로뮴산염, 이수화물디크롬산나트륨수화물SODIUM DICHROMATESODIUM BICHROMATESODIUM DICHROMATE GRSodium dichromate diSodium Dichromate ARSODIUM DICHROMATE 2H2OSODIUM DICHROMATE, ACSSodiumbichromateanhydrousSODIUM DICHROMATE, HYDROUSSODIUM DICHROMATE 2HYD XTL
disodium;oxido-(oxido(dioxo)chromio)oxy-dioxochromium;dihydrateEC 234-190-3Sodium dichromate dihydrate (VI)CAS-7789-12-0sodium dichromate-dihydrateSCHEMBL867453sodium dichromate (VI) dihydrateTox21_111178
데이터베이스 식별자
- CAS
7789-12-0- PubChem CID
- 108005
- DTXSID
DTXSID6032061- UNII
- 52125XYY2A
- EC Number
- 616-541-6
물성
구조 계산 물성
- 극성 표면적
- 126 Ų
- 수소 결합 공여자 수
- 2
- 수소 결합 수용자 수
- 9
- 회전 가능 결합 수
- 0
- 무거운 원자 수
- 13
- 형식 전하
- 0
- 복잡도
- 194
실험 및 물리화학적 성질
Chemical ClassesMetals -> Chromium Compounds, Inorganic
Density2.35 @ 13°C
Physical DescriptionReddish to bright orange solid; Somewhat deliquescent and soluble in water; [Merck Index] Orange-red odorless crystals; Hygroscopic and soluble in water; [Alfa Aesar MSDS]
물리화학적 성질
- 녹는점
- 91 °C · 91 °C(lit.)
- 끓는 점
- 400 °C · 400°C
- 밀도
- 2 · 2,348 g/cm3
- 증기 밀도
- 10 · 10 (vs air)
- 저장 조건
- 5 °C · Store at +5°C to +30°C.
- 용해도
- 메탄올(약간 용해됨,초음파 처리)
- 물리적 상태
- 고체
- Specific Gravity
- 2.348 · 2.348
- 색상
- 붉은 오렌지색
- 냄새
- 냄새 없는
- 수소이온지수(pH)
- 3.5 · 3.5 (20°C, 100g/L)
- 수용성
- 730 g/L · 730g/L(20℃)
- Merck
- 14 · 14,8609
- Dielectric constant
- 2.9 · 2.9(Ambient)
- InChI
- 1S/2Cr.2Na.2H2O.7O/h;;;;2*1H2;;;;;;;/q;;2*+1;;;;;;;;2*-1
- InChIKey
- JYDRNIYTFCBIFC-UHFFFAOYSA-N
- SMILES
- O.O.[Na+].[Na+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O
- EPA
- Disodium dichromate dihydrate (7789-12-0)
화학적 성질
Orange-yellow powder. Soluble in acids and hot water; insoluble in alcohol and ether.
안전 및 규제
GHS 분류
GHS Classification
Danger
H317 (100%): May cause an allergic skin reaction [Warning Sensitization, Skin]
P203, P261, P272, P273, P280, P302+P352, P318, P321, P333+P317, P362+P364, P391, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 2101 reports by companies from 9 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Danger
H301: Toxic if swallowed [Danger Acute toxicity, oral]
유해성 정보
Regulatory Information
Chemical: Chromic acid (H2Cr2O7), disodium salt, dihydrate
Chromic acid, disodium salt, dihydrate: HSNO Approval: HSR001440 Approved with controls
Other Safety InformationIMAP assessments - Chromates and dichromates (soluble): Human health tier II assessment
Hazards Summary
An oxidizer that may cause fire on contact with combustible materials; Causes burns; May cause skin and respiratory sensitization; Toxic by ingestion; Highly toxic by inhalation; Harmful by skin absorption; [Alfa Aesar MSDS] See Sodium dichromate. See Chromium and linked occupational diseases.
Hazard Classes and Categories
Skin Sens. 1 (100%)
Carcinogenicity - category 1A
Acute toxicity (Oral) - Category 3
안전 및 보호
Threshold Limit Values (TLV)
0.0001 [mg/m3], as Cr(VI), inhalable particulate matter
0.0005 [mg/m3], as Cr(VI), inhalable particulate matter
Permissible Exposure Limit (PEL)0.005 [mg/m3], as Cr(VI)
Protective Action Criteria (PAC)
0.017 [mg/m3]
0.62 [mg/m3]
3.7 [mg/m3]
독성 정보
Adverse EffectsNephrotoxin - The chemical is potentially toxic to the kidneys in the occupational setting.
Carcinogen Classification
Sodium Dichromate Dihydrate
TR-546: Toxicology and Carcinogenesis Studies of Sodium Dichromate Dihydrate (CASRN 7789-12-0) in F344/N Rats and B6C3F1 Mice (Drinking Water Studies) (2008 )
05/16/07
Clear Evidence
Clear Evidence
Clear Evidence
안전 데이터
- wgk
- 3
- tsca
- Yes
- rtecs
- HX7750000
- ridadr
- UN 3086 6.1/PG 1
- HS 번호
- 28413000
- risk_code
- 45-46-60-61-8-21-25-26-34-42/43-48/23-50/53
- hazard_code
- O,T+,N
- safety_code
- 53-45-60-61
- 포장분류
- III
- 위험 등급
- 5.1
- Hazard Classifications
- Acute Tox. 2 InhalationAcute Tox. 3 OralAcute Tox. 4 DermalAquatic Acute 1Aquatic Chronic 1Carc. 1BEye Dam. 1Muta. 1BOx. Sol. 2Repr. 1BResp. Sens. 1Skin Corr. 1BSkin Sens. 1STOT RE 1 Inhalation
- 스토리지 클래스
- 5.1B - Oxidizing hazardous materials
- 함량 및 규제정보
- 물질구분: 제한물질; 혼합물(제품)함량정보: 크로뮴(6+)화합물 및 이를 0.1% 이상 함유한 혼합물
- 유해화학물질 필터링
- 99-1-506;06-5-10
- 중점관리물질 필터링
- 별표1-139
화학 및 산업
용도 및 제조
Uses
Used as an oxidizing agent (to make dyes, inks, and other chemicals), bleaching agent (fats, oils, sponges, and resins), tanning agent, and mordant in dyeing; Also used in electric batteries, for refining petroleum, electro-engraving copper, in corrosion inhibitors and corrosion inhibiting paints, metal treatments, hardening gelatin, defoliation of cotton and other plants and shrubs, and as a topical anti-infective; [Merck Index] Used for metal finishing (chrome plating, electroplating, passivating, anodizing, and brightening), to make vitamin K, colored glass, ceramic glazes, essential oils, and perfumes; [ExPub: ECHA - Annex XV Dossier] Found as a contaminant in drinking water from industrial uses including electroplating, leather tanning, and textile manufacturing; [NTP]
Electroplating [Category: Plate]
응용 분야
용도Sodium Dichromate Dihydrate is used as a catalyst in the synthesis of Endoperoxide II. Strong oxidizing agent in organic synthesis. Used in metal finishing as an aid in corrosion resistance.
일반 설명Solid orange-yellow crystal or powder.
상·하류 제품 정보
상류 원료
하류 제품
추가 설명
정의A red crystallinesolid, Na2Cr2O7.2H2O, solublein water and insoluble in ethanol. Itis usually known as the dihydrate(r.d. 2.52), which starts to lose waterabove 100°C; the compound decomposesabove 400°C. It is made bymelting chrome iron ore with limeand soda ash and acidification of thechromate thus formed. Sodiumdichromate is cheaper than the correspondingpotassium compound buthas the disadvantage of being hygroscopic.It is used as a mordant in dyeing,as an oxidizing agent in organicchemistry, and in analytical chemistry.
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