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HCID 108005생성일: 2026년 10월 23일

중크롬산나트륨

나트륨비크롬산결정 · 소디움디클로로메이트2H2O · 이크롬산나트륨 · 나트륨디크롬산이수화물 · 디나트륨디크롬산이수화물 · 중크롬산나트륨(2수화물) · 중크롬산나트륨 · 소듐다이크로메이트,다이하이드레이트

https://huagongshe.com/ko/chemical/108005

중크롬산나트륨 분자 구조식

식별자 및 물리적 특성

CAS No.7789-12-0
분자식Cr2H4Na2O9
평균 분자량298 g/mol
단동위원소 질량297.84608527 g/mol
SMILESO.O.[Na+].[Na+].[O]=[Cr](=[O])([O-])[O][Cr](=[O])(=[O])[O-]
InChIKeyJYDRNIYTFCBIFC-UHFFFAOYSA-N
PubChem CID108005
EC No.616-541-6
DTXSIDDTXSID6032061
현지명중크롬산나트륨

화학 및 물리적 성질

극성 표면적126
수소 결합 공여자 수2
수소 결합 수용자 수9
회전 가능 결합 수0
무거운 원자 수13
형식 전하0
복잡도194
물질 분류Metals -> Chromium Compounds, Inorganic
밀도2.35 @ 13°C2,348 g/cm3
Physical DescriptionReddish to bright orange solidSomewhat deliquescent and soluble in water[Merck Index] Orange-red odorless crystalsHygroscopic and soluble in water[Alfa Aesar MSDS]
녹는점91 °C(lit.)
끓는 점400°C
증기 밀도10 (vs air)
저장 조건Store at +5°C to +30°C.
용해도메탄올(약간 용해됨,초음파 처리)
물리적 상태고체
비중2.348
색상붉은 오렌지색
냄새냄새 없는
pH3.5 (20°C, 100g/L)
용해도730g/L(20℃)
Merck14,8609
유전율2.9(Ambient)
InChI1S/2Cr.2Na.2H2O.7O/h2*1H2/q2*+12*-1
InChIKeyJYDRNIYTFCBIFC-UHFFFAOYSA-N
SMILESO.O.[Na+].[Na+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O
EPADisodium 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 분류DangerH317 (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.H301: Toxic if swallowed [Danger Acute toxicity, oral]
규제 정보Chemical: Chromic acid (H2Cr2O7), disodium salt, dihydrateChromic acid, disodium salt, dihydrate: HSNO Approval: HSR001440 Approved with controls
기타 안전 정보IMAP assessments - Chromates and dichromates (soluble): Human health tier II assessment
유해성 요약An oxidizer that may cause fire on contact with combustible materialsCauses burnsMay cause skin and respiratory sensitizationToxic by ingestionHighly toxic by inhalationHarmful by skin absorption[Alfa Aesar MSDS] See Sodium dichromate. See Chromium and linked occupational diseases.
Hazard Classes and CategoriesSkin Sens. 1 (100%)Carcinogenicity - category 1AAcute toxicity (Oral) - Category 3
Threshold Limit Values (TLV)0.0001 [mg/m3], as Cr(VI), inhalable particulate matter0.0005 [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]
유해 작용Nephrotoxin - The chemical is potentially toxic to the kidneys in the occupational setting.
Carcinogen ClassificationSodium Dichromate DihydrateTR-546: Toxicology and Carcinogenesis Studies of Sodium Dichromate Dihydrate (CASRN 7789-12-0) in F344/N Rats and B6C3F1 Mice (Drinking Water Studies) (2008 )05/16/07Clear Evidence
수질 위해 등급(WGK)3
TSCA 등재 상태Yes
RTECS 번호HX7750000
운송 번호(UN)UN 3086 6.1/PG 1
관세 코드28413000
위험 문구(R)45-46-60-61-8-21-25-26-34-42/43-48/23-50/53
위험 표시O,T+,N
안전 문구(S)53-45-60-61
포장분류III
위험 등급5.1Acute 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
저장 분류5.1B - Oxidizing hazardous materials
함량 및 규제정보물질구분: 제한물질혼합물(제품)함량정보: 크로뮴(6+)화합물 및 이를 0.1% 이상 함유한 혼합물
유해화학물질 필터링99-1-50606-5-10
중점관리물질 필터링별표1-139

용도

용도

Sodium 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 설명

Solid orange-yellow crystal or powder.