The Sodium chromate tetrahydrate, with the CAS registry number 10034-82-9 and EINECS registry number  231-889-5, has the systematic name of disodium dioxido(dioxo)chromium tetrahydrate. It is a kind of yellow deliquescent crystals, and it belongs to the product categories of Inorganic Salts and Synthetic Reagents. The molecular formula of the chemical is Na₂CrO₄^.4(H₂O).

The characteristics of this chemical are as followings: (1)H-Bond Donor 4; (2)H-Bond Acceptor 8; (3)Rotatable Bond Count 0; (4)Exact Mass 233.941968; (5)MonoIsotopic Mass 233.941968; (6)Topological Polar Surface Area 84.3; (7)Heavy Atom Count 11; (8)Formal Charge 0; (9)Complexity 62.2; (10)Isotope Atom Count 0; (11)Defined Atom StereoCenter Count 0; (12)Undefined Atom StereoCenter Count ; (13)Defined Bond StereoCenter Count 0; (14)Undefined Bond StereoCenter Count 0; (15)Covalently-Bonded Unit Count 7.

It may cause burns, sensitization or cancer, and harm to he unborn child. It is also very toxic by inhalation, and has danger of serious damage to health by prolonged exposure through inhalation. Besides, it is very toxic to aquatic organisms, and may cause long-term adverse effects in the aquatic environment.

Therefore, you had better take the following instructions: Avoid exposure - obtain special instruction before use; In case of accident or if you feel unwell, seek medical advice immediately (show label where possible); This material and/or its container must be disposed of as hazardous waste; Avoid release to the environment. Refer to special instructions safety data sheet.

Addtionally, the following datas could be converted into the molecular structure:
(1)SMILES: O.O.O.O.[Na+].[Na+].[O-][Cr]([O-])(=O)=O
(2)InChI: InChI=1/Cr.2Na.4H2O.4O/h;;;4*1H2;;;;/q;2*+1;;;;;;;2*-1/rCrO4.2Na.4H2O/c2-1(3,4)5;;;;;;/h;;;4*1H2/q-2;2*+1;;;;
(3)InChIKey: AVHUVTPOXZEIRG-VNKORHDLAT

The toxicity data is as follows: